# Rechenportal.de — Full Context > Rechenportal.de is Germany's free, independent calculator portal with 76 specialized calculators — all updated for 2026 German law. No registration required. Available in German and English. Over 438 blog articles and 713 FAQ answers. The site helps users in Germany make informed decisions with accurate, ad-supported calculators. All calculations follow current 2026 German tax law, social security rates, and benefit schedules. Every calculator includes interactive visualizations, detailed blog articles, and comprehensive FAQ sections. Base URL: https://rechenportal.de Languages: German (default, root level), English (/en/ prefix) Total calculators: 76 Total blog articles: 438 Total FAQ answers: 713 --- ## Gross-to-Net Salary Calculator (Brutto-Netto-Rechner) - [Calculator](https://rechenportal.de/brutto-netto-rechner): From gross to net in seconds - [English version](https://rechenportal.de/en/salary-calculator) ### Blog Articles - [German Salary Calculator 2026: How Much Net Pay You Actually Get](https://rechenportal.de/en/salary-calculator/blog/salary-calculator-2026-gross-net) *(pillar article)*: Everything about the gross-net calculation 2026: taxes, social insurance, allowances and what changes compared to 2025. - [Tax Classes Explained: Which One Is Right for You?](https://rechenportal.de/en/salary-calculator/blog/tax-classes-explained-overview): All 6 tax classes at a glance with example calculations and recommendations. - [Church Tax: Is Leaving Worth It Financially?](https://rechenportal.de/en/salary-calculator/blog/church-tax-exit-savings): What church tax costs, how to leave and how much you can save. - [Salary Negotiation: How to Get a €500 Raise](https://rechenportal.de/en/salary-calculator/blog/salary-negotiation-tips): Practical tips for salary negotiation and what €500 more gross really means net. - [Tax Class Change for Married Couples: III/V vs. IV/IV](https://rechenportal.de/en/salary-calculator/blog/tax-class-change-couples-comparison): Which tax class combination is optimal for married couples? With concrete examples. - [Mini Job, Midi Job, Full-Time: Net Pay at Every Income Level](https://rechenportal.de/en/salary-calculator/blog/midijob-minijob-fulltime-net-comparison): Mini job up to €603, midi job up to €2,000, full-time: how deductions differ. ### FAQ - **How do I calculate my net salary?**: Enter your gross salary, select your tax class, federal state and insurance type. The calculator automatically deducts income tax, solidarity surcharge, church tax (if applicable), and social insurance contributions (health, pension, unemployment, nursing care) to show your monthly and annual net salary. - **What changes in 2026 for income tax?**: The basic tax allowance (Grundfreibetrag) increases to €12,348 in 2026 (2025: €12,096). This means more of your salary is tax-free. Social insurance contribution ceilings also increase, affecting higher earners. The nursing care insurance rate rises to 3.6%. - **Which tax class is best for me?**: Singles automatically get tax class I, single parents class II. Married couples can choose between III/V and IV/IV. Class III/V is better when one partner earns significantly more. If both earn similarly, IV/IV is usually better. Our tax class comparison shows the differences for your income. - **What percentage is deducted from gross salary?**: For an average salary of €3,500 gross in tax class I, about 35-40% goes to taxes and social insurance. The exact percentage depends on your tax class, federal state, church tax obligation, and type of health insurance. - **What is the solidarity surcharge and do I still pay it?**: The solidarity surcharge is 5.5% of income tax. Since 2021, there's a threshold: for singles (tax class I), it only applies above €18,130 annual income tax. About 90% of employees no longer pay the solidarity surcharge. - **Is a tax class change worth it after marriage?**: Yes, often. If one partner earns significantly more, the III/V combination gives more net pay per month (for the class III partner). The annual tax burden doesn't change – only the monthly distribution. A change can be requested at the tax office at any time. - **How is church tax calculated?**: Church tax is 8% of income tax in Bavaria and Baden-Württemberg, and 9% in all other federal states. It's automatically deducted by the employer if you're a member of a church-tax-eligible religious community. - **What is the difference between public and private health insurance for salary?**: In public health insurance (GKV), contributions are a percentage of salary (14.6% + additional contribution, split equally between employer and employee). In private insurance (PKV), you pay a fixed monthly premium regardless of income. The employer subsidizes PKV up to the GKV employer contribution. - **What are the total employer costs?**: The employer pays about 20-22% on top of gross salary for social insurance (health, pension, unemployment, nursing care – employer's share) plus levies (U1, U2, U3). For €3,500 gross, total employer costs are approximately €4,200-4,300 per month. - **Can I get child allowances and child benefit at the same time?**: No, the tax office performs a comparison check. You receive either child benefit (€250 per child/month in 2026) or the tax child allowance – whichever is more favorable. At higher incomes, the tax savings from the allowance often exceed the child benefit. --- ## Vehicle Tax Calculator (Kfz-Steuer-Rechner) - [Calculator](https://rechenportal.de/kfz-steuer-rechner): Calculate vehicle tax and compare cars - [English version](https://rechenportal.de/en/kfz-tax-calculator) ### Blog Articles - [Vehicle Tax in Germany 2026: Calculation, Tables & EV Benefits](https://rechenportal.de/en/kfz-tax-calculator/blog/vehicle-tax-2026-calculation) *(pillar article)*: Everything about German vehicle tax 2026: displacement and CO₂-based calculation, progressive brackets, EV exemption, and tips for tax optimization when buying a car. - [Vehicle Tax for EVs: Tax Exemption Until 2030 Explained](https://rechenportal.de/en/kfz-tax-calculator/blog/electric-vehicle-tax-exemption): Which electric vehicles are tax-free, how long does the exemption last, and what happens after? All facts about vehicle tax for EVs. - [Diesel vs. Petrol: Vehicle Tax Comparison 2026](https://rechenportal.de/en/kfz-tax-calculator/blog/vehicle-tax-diesel-vs-petrol): Why do diesels pay more vehicle tax? We compare displacement rates, CO₂ components, and total costs for both fuel types. - [CO₂-Based Vehicle Tax: How the Progressive Brackets Work](https://rechenportal.de/en/kfz-tax-calculator/blog/co2-vehicle-tax-progressive-brackets): From 95 g/km free threshold to €4.50 per g/km: how the CO₂ brackets in German vehicle tax work and what they mean for your wallet. - [Vehicle Tax for Motorhomes: Weight, Emission Class & Calculation](https://rechenportal.de/en/kfz-tax-calculator/blog/motorhome-tax-calculation): Motorhomes are taxed by weight and emission class. How to calculate vehicle tax for your motorhome — with examples and annual caps. - [Save on Vehicle Tax: 7 Legal Tips When Buying a Car](https://rechenportal.de/en/kfz-tax-calculator/blog/vehicle-tax-saving-tips): From switching to electric to displacement optimization: 7 strategies to save on German vehicle tax — completely legal. ### FAQ - **How is vehicle tax calculated in Germany?**: Since September 2018, German vehicle tax (Kfz-Steuer) for passenger cars consists of two components: a displacement component and a CO₂ component. The displacement rate is €2.00 per started 100 cc for petrol engines and €9.50 for diesel. The CO₂ component is progressive — the first 95 g/km are tax-free, and above that the rate increases in six brackets from €2.00 to €4.50 per g/km. Older vehicles (registered before September 2018) are taxed based on their emission standard instead. - **How much is the annual vehicle tax for my car?**: Annual vehicle tax depends on vehicle type, fuel, engine displacement, CO₂ emissions, and first registration date. A typical compact petrol car with 1,400 cc and 120 g/km CO₂ pays about €78 per year. A comparable diesel with 1,600 cc and 110 g/km costs around €184. Electric vehicles registered before 2026 are completely tax-free until the end of 2030. Use our calculator above to determine the exact amount for your vehicle. - **Are electric cars really tax-free?**: Yes, pure battery electric vehicles (BEVs) with first registration up to and including December 31, 2025 are exempt from vehicle tax until December 31, 2030. This exemption does not apply to plug-in hybrids, as they have a combustion engine. After the exemption expires, weight-based taxation is planned. For EVs registered from 2026 onwards, the tax exemption no longer applies and a new calculation model is expected. - **What changes in vehicle tax in 2026?**: The most significant change in 2026 concerns electric vehicles: only EVs registered by the end of 2025 will continue to enjoy the tax exemption until 2030. Electric vehicles registered from 2026 will likely be subject to weight-based taxation. For combustion vehicles with CO₂-based taxation, the calculation basis remains unchanged in 2026 — the progressive CO₂ brackets and the 95 g/km free threshold are maintained. Emission-standard-based rates for older vehicles also remain the same. - **How does CO₂ emission affect vehicle tax?**: The CO₂ portion of vehicle tax is progressive and applies to passenger cars registered from September 2018. The first 95 g/km are tax-free. Above that, rates increase in brackets: 96–115 g/km at €2.00/g, 116–135 g/km at €2.50/g, 136–155 g/km at €3.00/g, 156–175 g/km at €3.50/g, 176–195 g/km at €4.00/g, and €4.50/g above 195 g/km. A vehicle with 150 g/km CO₂ pays significantly more than one with 120 g/km — the difference is roughly €85 per year. - **Do diesel vehicles pay more tax than petrol cars?**: Yes, diesel vehicles pay a higher displacement component: €9.50 per started 100 cc compared to €2.00 for petrol engines. This surcharge compensates for the lower energy tax (mineral oil tax) on diesel fuel. However, diesels typically have lower CO₂ emissions, so the CO₂ component is smaller. For a typical mid-size car, the total tax for a diesel is still higher than for a comparable petrol vehicle, though the difference is offset at high annual mileages by better fuel economy. - **How is vehicle tax calculated for motorhomes?**: Motorhomes are taxed based on gross vehicle weight and emission standard. The rate per started 200 kg is: €16 for Euro 4 and better, €24 for Euro 3, €32 for Euro 2, and €40 for Euro 1 or worse. There is an annual cap of €800 for motorhomes with Euro 4 or better, and €1,000 for older emission classes. Engine displacement and CO₂ emissions are not relevant for motorhome taxation. - **What is the difference between NEDC and WLTP for vehicle tax?**: NEDC (New European Driving Cycle) and WLTP (Worldwide Harmonized Light Vehicles Test Procedure) are measurement procedures for CO₂ emissions. Since September 1, 2018, all new registrations use the more realistic WLTP value as the basis for vehicle tax. WLTP values are typically 10–25% higher than the old NEDC values, as the test cycle is closer to real-world driving. Vehicles registered before September 2018 continue to be taxed based on their emission standard rather than CO₂. - **Can I save vehicle tax by switching vehicles?**: Yes, significantly. Switching from an older diesel to a modern petrol car or an electric vehicle can reduce annual vehicle tax by several hundred euros. An EV registered before 2026 eliminates the tax entirely (until 2030). Even among combustion vehicles, comparison pays off: a car with 100 g/km CO₂ pays only €10 in CO₂ tax, while an SUV with 200 g/km incurs over €350. Use our comparison calculator to quantify the exact savings for your situation. - **Where can I find the CO₂ value of my vehicle?**: You can find the official CO₂ value of your vehicle in the registration certificate Part I (Fahrzeugschein) under field V.7. For new vehicles, the WLTP value is also listed in the COC document (Certificate of Conformity) and in the manufacturer’s technical specifications. Alternatively, you can look it up at the Federal Motor Transport Authority (KBA) using the type approval number. Make sure to use the WLTP value, as it has been the basis for vehicle tax calculation since September 2018. --- ## Side Income Tax Calculator (Nebenjob Steuerrechner) - [Calculator](https://rechenportal.de/nebenjob-rechner): How much do you keep from side income? - [English version](https://rechenportal.de/en/side-income-tax-calculator) ### Blog Articles - [Side Income Tax Germany 2026: How Much Do You Actually Keep?](https://rechenportal.de/en/side-income-tax-calculator/blog/side-income-tax-germany-2026-guide) *(pillar article)*: The comprehensive guide to side income taxes: Minijob, freelancing, business, rental, and capital gains compared. - [Minijob 2026: Tax Rules, Limits & Everything You Need to Know](https://rechenportal.de/en/side-income-tax-calculator/blog/minijob-2026-tax-rules-limits): The EUR 520 limit, flat-rate taxation, and social contributions: Everything you need to know about Minijobs in 2026. - [Small Business Tax Regulation: When Is It Worth It?](https://rechenportal.de/en/side-income-tax-calculator/blog/small-business-tax-regulation-worth-it): Section 19 UStG explained: Requirements, pros, cons, and when switching to standard taxation makes sense. - [Freelancing Alongside Your Day Job: Taxes, Obligations & Tips](https://rechenportal.de/en/side-income-tax-calculator/blog/freelancing-alongside-day-job-tax-tips): How to start freelancing alongside your day job: Registration, tax returns, business expenses, and common pitfalls. - [Rental Income Tax: What Landlords Need to Know](https://rechenportal.de/en/side-income-tax-calculator/blog/rental-income-tax-landlords-guide): Tax rental income correctly: Deductible expenses, depreciation, loan interest, and special cases for private landlords. - [Tax Class 6: Why It Costs So Much and What You Get Back](https://rechenportal.de/en/side-income-tax-calculator/blog/tax-class-6-explained): Tax class VI in detail: Why wage tax deductions are so high, how the annual tax return helps, and when a second job is still worth it. ### FAQ - **How much tax do I pay on my side income?**: It depends on the type of side income and your main income. A Minijob up to EUR 520/month is completely tax-free for you. For all other side income, the profit is taxed at your personal marginal tax rate, which typically ranges from 14% to 42%. The higher your main salary, the higher the tax rate on your side income. - **Is a Minijob tax-free?**: Yes, for you as an employee, a Minijob up to EUR 520/month is completely free of taxes and social contributions. The employer pays flat-rate charges of about 30% (flat tax, pension insurance, health insurance, levies). However, you can voluntarily contribute to pension insurance to earn full pension entitlements. - **Do I need to file a tax return if I have a side job?**: A tax return is mandatory once your side income (excluding Minijobs) exceeds EUR 410 per year. For self-employed or rental income, filing is always required. With a second employment under tax class VI, filing almost always pays off since you frequently get back overpaid wage tax. - **What is the EUR 520 Minijob limit?**: The EUR 520 limit is the maximum monthly earnings for marginal employment (Minijob), equaling EUR 6,240 per year. If this limit is regularly exceeded, the employment automatically becomes subject to full social insurance. Occasional overages (maximum 2 months per year, e.g., due to covering for colleagues) are permitted. - **What happens if I exceed the small business threshold?**: The small business threshold is EUR 22,000 in annual revenue. If you exceed it, you must charge VAT (19% or 7%) on your invoices starting the following year and submit regular VAT advance returns. The upside: you can then also deduct input VAT from your purchases and business expenses, which reduces the net burden. - **Do I have to tell my employer about my side job?**: Under employment law, you are generally required to inform your employer about a side activity, especially if your employment contract includes an approval clause. Your employer may only prohibit a side job if legitimate interests are affected (e.g., competition, working time regulations). A blanket prohibition of side activities is legally invalid. - **Which side income type is most tax-efficient?**: A Minijob up to EUR 520/month is the most tax-efficient option since no deductions apply. For higher earnings, freelance activity is often more advantageous than employment because no social contributions are due and business expenses can be deducted directly. Use our comparison calculator to find the optimal option for your situation. - **How is rental income taxed alongside a main job?**: Rental income is taxed at your personal income tax rate as income from renting and leasing. However, you can deduct numerous expenses: loan interest, depreciation (typically 2% per year), maintenance costs, management fees, and property tax. Social contributions do not apply to rental income. - **Do I need a trade license for my side hustle?**: A trade license is only required for commercial activities (e.g., online retail, crafts, hospitality). Freelance activities such as writing, design, consulting, teaching, or art do not require a trade license. When in doubt, section 18 of the Income Tax Act (EStG) defines the liberal professions. Trade registration at the local trade office costs between EUR 20 and EUR 60. - **How do I calculate my marginal tax rate?**: The marginal tax rate indicates how much tax applies to the next euro earned. It results from the progressive income tax formula (section 32a EStG) and rises from 14% (above the basic allowance) to 42% (above approximately EUR 68,480 taxable income). The top rate of 45% applies above EUR 277,826. Our calculator automatically determines your exact marginal tax rate. --- ## Housing Benefit Calculator (Wohngeld-Rechner) - [Calculator](https://rechenportal.de/wohngeld-rechner): Check your housing benefit eligibility - [English version](https://rechenportal.de/en/housing-benefit-calculator) ### Blog Articles - [Housing Benefit in Germany 2026: Everything You Need to Know](https://rechenportal.de/en/housing-benefit-calculator/blog/housing-benefit-germany-2026-guide) *(pillar article)*: The comprehensive guide to Wohngeld: Who is eligible, how is it calculated, and how do you apply? - [How to Apply for Housing Benefit: Step-by-Step Guide](https://rechenportal.de/en/housing-benefit-calculator/blog/how-to-apply-housing-benefit-guide): From application to approval — how to apply for housing benefit correctly. - [Rent Levels in Germany Explained: What Do Rent Levels I–VII Mean?](https://rechenportal.de/en/housing-benefit-calculator/blog/rent-levels-germany-explained): Rent levels determine your housing benefit. Find out your area's level and what it means. - [Housing Benefit vs. Citizens' Income: Which Is Better for You?](https://rechenportal.de/en/housing-benefit-calculator/blog/housing-benefit-vs-citizens-income): A direct comparison: When is Wohngeld the better choice, and when is Bürgergeld? - [Housing Benefit for Retirees in Germany 2026](https://rechenportal.de/en/housing-benefit-calculator/blog/housing-benefit-retirees-germany): Retirees are often eligible for Wohngeld. Here's how to calculate your benefit. - [Housing Benefit for Students: When Are Students Eligible?](https://rechenportal.de/en/housing-benefit-calculator/blog/housing-benefit-students-germany): BAföG or Wohngeld? Find out when students can apply for housing benefit. ### FAQ - **What is Wohngeld and who is eligible?**: Wohngeld is a government housing subsidy for low-income households in Germany. Both renters (rent subsidy) and property owners (burden subsidy) may be eligible if they can cover their basic living costs but struggle with housing expenses. Recipients of Bürgergeld, full BAföG, or social assistance are generally excluded. - **How much housing benefit will I receive?**: The amount depends on three factors: household size, total income, and rent (capped by the rent level of your area). A single-person household earning €1,200 net in a rent level IV city may receive around €150–250 per month. Families with children often receive significantly more. - **What is a rent level (Mietstufe) and how do I find mine?**: The rent level (I–VII) reflects the average rent prices in your area. Level I means affordable housing, Level VII means very expensive. Munich is Level VII, Dresden is Level II. Our calculator automatically detects your rent level from your postal code. - **What are the income limits for housing benefit?**: There are no fixed limits — the calculation is gradual. As a rule of thumb: a single person should earn no more than about €1,500–1,800 gross, a family of four no more than about €3,500–4,500 gross (depending on rent level). Deductions for children, single parents, and disabled persons increase these limits. - **Can property owners receive housing benefit?**: Yes! Owners of self-occupied housing can apply for a burden subsidy (Lastenzuschuss). Instead of rent, monthly costs like mortgage payments and maintenance fees are considered. The calculation follows the same principle as for renters. - **How long does it take to process a housing benefit application?**: Processing time varies between 3 and 6 weeks depending on the municipality. In metropolitan areas it may take longer. Tip: Submit your application as early as possible — housing benefit is granted from the month of application, not retroactively. - **Can I receive housing benefit and child benefit at the same time?**: Yes, child benefit (Kindergeld) and housing benefit are not mutually exclusive. However, child benefit is counted as the child's income in the housing benefit calculation. Having a child in the household still usually increases your claim due to higher deductions. - **What happens if my income changes?**: Significant changes (more than 15% income change) should be reported to the housing office. Income increases may reduce your benefit, while income loss allows you to request an increase. The approval period is typically 12 months. - **Is housing benefit paid retroactively?**: Housing benefit is generally granted from the month of application — not retroactively for previous months. That's why it's important to apply as early as possible. After the approval period expires (usually 12 months), a continuation application must be filed. - **What is the difference between Wohngeld and Bürgergeld?**: Wohngeld is a housing cost subsidy for employed people and retirees with low income. Bürgergeld (formerly Hartz IV) is basic income support for job seekers covering all living costs including housing. You cannot receive both. Wohngeld is often the better choice if you earn just above the Bürgergeld threshold. --- ## Basic Income Support Calculator (Grundsicherungsgeld-Rechner) - [Calculator](https://rechenportal.de/buergergeld-rechner): Calculate your basic income support (formerly Bürgergeld) eligibility - [English version](https://rechenportal.de/en/citizens-income-calculator) ### Blog Articles - [Bürgergeld Becomes Basic Income Support: All Changes of the 2026 Reform](https://rechenportal.de/en/citizens-income-calculator/blog/citizens-benefit-becomes-basic-income-support-changes): New name, new asset rules, capped housing costs, tougher sanctions: the complete guide to the Neue Grundsicherung reform effective 1 July 2026 — with concrete numbers and a timeline. - [Citizens' Income in Germany 2026: The Complete Guide](https://rechenportal.de/en/citizens-income-calculator/blog/citizens-income-germany-2026-guide) *(pillar article)*: Everything about Bürgergeld 2026: Who is eligible, how much are the benefits, and how do you apply? The comprehensive guide. - [How to Apply for Bürgergeld: Step-by-Step Guide](https://rechenportal.de/en/citizens-income-calculator/blog/how-to-apply-buergergeld-guide): From preparation to approval — how to apply for Bürgergeld correctly. With a checklist of all required documents. - [Bürgergeld and Employment: How Much Can You Earn on Top?](https://rechenportal.de/en/citizens-income-calculator/blog/buergergeld-employment-income-allowances): Income allowances, deduction rules, and why working always pays off with Bürgergeld — explained simply. - [Housing Costs (KdU): What the Jobcenter Covers for Rent](https://rechenportal.de/en/citizens-income-calculator/blog/housing-costs-jobcenter-coverage): Housing cost limits, grace period, and cost reduction procedures: Everything about rent coverage with Bürgergeld. - [Bürgergeld as Top-Up: When Your Salary Isn't Enough](https://rechenportal.de/en/citizens-income-calculator/blog/buergergeld-top-up-low-salary): Supplementary Bürgergeld for low earners: When you qualify as a top-up recipient and how much you get. - [Bürgergeld Asset Check: What Can You Keep?](https://rechenportal.de/en/citizens-income-calculator/blog/buergergeld-asset-check-exemptions): Asset exemptions, protected items, and grace period rules: How the Bürgergeld asset check works. ### FAQ - **What is Grundsicherungsgeld and what changed from Bürgergeld?**: On 1 July 2026, as part of the Neue Grundsicherung reform, Bürgergeld was renamed Grundsicherungsgeld (basic income support), following a Bundestag decision on 5 March 2026. The relevant section of the German Social Code (SGB II) is now titled "Grundsicherung für Arbeitsuchende". Authorities may continue to use the term Bürgergeld until 31 December 2026 during the transition. The main substantive changes concern the asset check (age-based exemptions instead of a grace period), a cap on housing costs, and stricter sanctions. The standard rates stay unchanged in 2026. - **How much is basic income support in 2026 for a single person?**: The standard benefit rate for a single person in 2026 is unchanged at €563 per month. The other rates: partner in the household €506, adolescents (14–17) €471, young adults (18–24) €451, children (6–13) €390, and children (0–5) €357. On top of that, the Jobcenter covers housing costs (KdU) — rent and heating — at an appropriate level, so the total entitlement depends heavily on housing costs. - **Who is eligible for Grundsicherungsgeld?**: You're eligible if you are capable of working (erwerbsfähig), in need of assistance (hilfebedürftig), between 15 and retirement age (currently 66), have your habitual residence in Germany, and cannot cover your living costs from your own income or assets. Members of your household (Bedarfsgemeinschaft) — partners and minor children — may also receive benefits. The reform did not change these basic requirements. - **How much in assets can I keep while on basic income support?**: The one-year asset grace period (formerly €40,000 in the first year) and the flat €15,000-per-person exemption were abolished. Since 1 July 2026, an age-based exemption applies from day one, per person: up to 30 years €5,000, 31 to 40 years €10,000, 41 to 50 years €12,500, and 51+ years €20,000. These amounts are added up for every person in the household. Additionally protected: one appropriate vehicle (up to €15,000 value) per adult, a self-occupied property of appropriate size, retirement savings, and appropriate household goods. - **Does the Jobcenter cover my full rent?**: The Jobcenter covers housing costs (KdU) at an appropriate level, with each district setting its own appropriateness limit. The first-year grace period (Karenzzeit) formally remains, but since the reform the actual costs are capped at 1.5× the local appropriateness limit. Exceptions apply for hardship cases and households with children. After the grace period, only the appropriate rent is covered and the Jobcenter may request cost reduction. - **How much can I earn while receiving benefits?**: The employment income allowances are unchanged: the first €100 is completely free (basic allowance); between €100 and €520, 20% is exempt; between €520 and €1,000, 30%; between €1,000 and €1,200 (or €1,500 with children), 10%. The mini-job threshold (Geringfügigkeitsgrenze) is €603 in 2026. Working still pays off — a portion of your earnings always remains exempt. - **What sanctions apply to Grundsicherungsgeld?**: Sanctions were tightened. For a breach of duty (Pflichtverletzung), the standard need is cut by a flat 30% for three months — the former escalating ladder of cuts is gone. For a missed appointment (Meldeversäumnis), a repeat can trigger a 30% cut for one month; missing three appointments in a row counts as being "not reachable" and benefits can be stopped. Anyone who wilfully refuses reasonable work risks a cut of up to 100% of the standard need, in force since 23 April 2026. Health and long-term care insurance contributions remain protected in all cases. - **Can I receive basic income support as a top-up to my salary?**: Yes, so-called 'Aufstocker' (top-up recipients) can receive supplementary Grundsicherungsgeld if their employment income isn't enough to cover their household's living costs. Because the income allowances are unchanged, part of your earnings remains exempt — anyone who works always has more money available than someone relying solely on benefits. - **What documents do I need to apply?**: You'll need: ID card or passport, rental agreement and current utility bill statement, income proof for the last 3 months (pay slips, benefit notices), bank statements for all accounts for the last 3 months, proof of assets (savings books, portfolio statements), child benefit notice (if applicable), and if relevant, disability certificate or pregnancy confirmation. --- ## Inheritance Tax Calculator (Erbschaftsteuer-Rechner) - [Calculator](https://rechenportal.de/erbschaftsteuer-rechner): Calculate inheritance & gift tax - [English version](https://rechenportal.de/en/inheritance-tax-calculator) ### Blog Articles - [German Inheritance Tax 2026: Allowances, Tax Classes & Money-Saving Tips](https://rechenportal.de/en/inheritance-tax-calculator/blog/inheritance-tax-germany-2026-allowances-guide) *(pillar article)*: The comprehensive guide to German inheritance tax in 2026. All allowances, tax classes, calculation examples, and legal strategies for tax optimization. - [Inheritance Tax Allowances 2026: How Much Is Tax-Free?](https://rechenportal.de/en/inheritance-tax-calculator/blog/inheritance-tax-allowances-2026-overview): Complete overview of all inheritance tax allowances by relationship, including maintenance allowance and household goods allowance. - [Inheriting Real Estate: Valuation, Taxes & the Family Home](https://rechenportal.de/en/inheritance-tax-calculator/blog/inheriting-real-estate-taxes-valuation): What you need to know when inheriting real estate. Valuation, tax allowances, family home rules, and strategies for minimizing taxes. - [Gifting Instead of Inheriting: Save Taxes with the 10-Year Rule](https://rechenportal.de/en/inheritance-tax-calculator/blog/gifting-vs-inheriting-10-year-rule): How to legally minimize inheritance tax through smart lifetime gifts. The 10-year rule explained simply with calculation examples. - [Inheritance Tax on Business Assets: Exemption Rules Explained](https://rechenportal.de/en/inheritance-tax-calculator/blog/inheritance-tax-business-assets-exemptions): Standard exemption, optional exemption, payroll rules — how business assets are favored in inheritance tax. - [Writing a Will: Tax-Optimized Inheritance Planning](https://rechenportal.de/en/inheritance-tax-calculator/blog/writing-a-will-tax-optimized-inheritance): How to structure your will so your heirs pay as little inheritance tax as possible. Tips on Berlin Will, legacy, and usufruct. ### FAQ - **How high is the inheritance tax allowance?**: The allowance depends on the relationship: Spouses receive €500,000, children €400,000, grandchildren €200,000, parents (inheritance) €100,000. Siblings, nephews/nieces, and unrelated persons receive only €20,000. - **Which tax class applies to my inheritance?**: There are three tax classes: Class I for spouses, children, grandchildren, and parents (in inheritance). Class II for siblings, nephews/nieces, and parents (for gifts). Class III for everyone else. The higher the tax class, the higher the tax rate. - **Do I have to pay inheritance tax on an inherited house?**: For Tax Class I, you receive a 10% valuation discount on owner-occupied residential property. Spouses and children can even inherit the family home completely tax-free under certain conditions if they live in it for at least 10 years. - **What is the difference between inheritance tax and gift tax?**: Both tax types are based on the same law (ErbStG) and use the same allowances and tax rates. The key difference: For gifts, the allowances can be used again every 10 years. Also, for parents, Tax Class II applies for gifts instead of Class I. - **How does the 10-year rule for gifts work?**: The gift tax allowances renew every 10 years. This means: If you gift your child €400,000 every 10 years, no gift tax applies. All gifts within a 10-year period are added together. - **Can siblings inherit tax-free?**: Siblings only receive an allowance of €20,000 and fall into Tax Class II with tax rates of 15-43%. Larger inheritances to siblings are therefore heavily taxed. Forward-looking estate planning can help reduce the tax burden. - **What is a maintenance allowance (Versorgungsfreibetrag)?**: In addition to the personal allowance, spouses receive a maintenance allowance of €256,000 and children (depending on age) up to €52,000. This is reduced by the capital value of maintenance benefits (e.g., widow's pension). - **How is business property treated for inheritance tax?**: Business property can be exempted from inheritance tax by 85% (standard exemption) or even 100% (optional exemption) if certain conditions are met: The payroll sum must be maintained over 5 years and administrative assets must not exceed certain limits. - **Do I have to pay inheritance tax immediately?**: The tax office issues a tax assessment notice. You typically have four weeks after receiving the notice to pay. For real estate inheritances, a deferral of up to 10 years can be granted upon request if immediate payment would constitute significant hardship. - **Can I avoid inheritance tax with a Berlin Will?**: No, on the contrary: The Berlin Will can actually increase the overall tax burden because the children's allowances remain unused at the first death. Instead, a combination of legacy solutions and lifetime gifts is recommended. --- ## Property Tax Calculator (Grundsteuer-Rechner) - [Calculator](https://rechenportal.de/grundsteuer-rechner): Calculate your new property tax - [English version](https://rechenportal.de/en/property-tax-calculator) ### Blog Articles - [New Property Tax in Germany 2026: What Property Owners Need to Know](https://rechenportal.de/en/property-tax-calculator/blog/new-property-tax-germany-2026-guide) *(pillar article)*: The property tax reform has been finalized and takes full effect in 2025. Learn how the new calculation works, which model applies in your federal state, and what you can do if your property tax rises significantly. The comprehensive guide for all property owners. - [Property Tax in Bavaria: How the Area-Based Model Works](https://rechenportal.de/en/property-tax-calculator/blog/property-tax-bavaria-area-model): Bavaria takes a unique approach to property tax with a purely area-based model. Unlike the federal model, the property value plays no role — only the square meters count. We explain the calculation step by step and show who benefits from this approach. - [How to Find Your Land Value: A Guide for All German States](https://rechenportal.de/en/property-tax-calculator/blog/how-to-find-land-value-germany): The land value (Bodenrichtwert) is a key figure for the new property tax calculation in many federal states. We show you how to find the correct value via the BORIS portal or your municipality’s expert committee, and what to watch out for. - [Check Your Property Tax Assessment: Spot Errors & File an Objection](https://rechenportal.de/en/property-tax-calculator/blog/check-property-tax-assessment-objection): Not every property tax assessment is correct — incorrect area figures, an overstated land value, or a wrong property type are common errors. Learn how to check your assessment step by step and file corrections within the objection deadline. - [Tax Rate Comparison: Most and Least Expensive Municipalities](https://rechenportal.de/en/property-tax-calculator/blog/tax-rate-comparison-municipalities): Tax rates vary enormously between German municipalities — from under 200% in rural areas to over 900% in some major cities. We compare tax rates across the largest cities, reveal regional patterns, and explain why some municipalities have drastically raised their rates. - [Property Tax for Condos: Special Rules & Calculation](https://rechenportal.de/en/property-tax-calculator/blog/property-tax-condos-calculation): Special rules apply to condominiums for property tax purposes: the co-ownership share of the land, the proportional living area, and the allocation formula of the owners’ association all play a central role. We explain how the calculation works and what pitfalls to avoid. ### FAQ - **How is the new property tax calculated?**: The new German property tax (Grundsteuer) is calculated in three steps: First, the tax office determines the property tax value (Grundsteuerwert) of your property. This is multiplied by the legally defined tax assessment rate (Steuermesszahl) to produce the tax assessment amount (Steuermessbetrag). Finally, the municipality multiplies the assessment amount by its individual tax rate (Hebesatz) — this gives the annual property tax. Depending on the federal state, the method for determining the property tax value differs significantly: some states use the value-based federal model, while others use purely area-based models. - **Which calculation model applies in my federal state?**: Germany has six different property tax models: The federal model (value-based) applies in 11 states, including Berlin, NRW, Saxony, and Schleswig-Holstein. Bavaria uses a pure area-based model where only the plot and building area count — the property value plays no role. Baden-Württemberg uses the land value model, based solely on the land value per square meter. Hamburg has a residential quality model, Hesse uses an area-factor method, and Lower Saxony has an area-location model. Our calculator automatically detects the correct model based on your federal state. - **Where do I find my land value (Bodenrichtwert)?**: You can find your land value for free via the BORIS portal (Bodenrichtwertinformationssystem) of your federal state. Simply enter your address or parcel number, and the current land value will be displayed. Alternatively, you can request the land value from the expert committee (Gutachterausschuss) of your municipality. For the property tax calculation, the land value as of January 1, 2022 is typically used, which is stated in the property tax value notice (Grundsteuerwertbescheid) from the tax office. - **What is the Hebesatz and how does it affect my property tax?**: The Hebesatz (municipal tax rate) is a percentage set individually by each municipality and serves as the final multiplier in the property tax calculation. It varies enormously: from under 200% in small rural communities to over 900% in some major cities. Municipalities were asked to adjust their tax rates during the reform to keep total revenue neutral. In practice, however, many municipalities changed their rates to varying degrees, meaning the individual tax burden for property owners has indeed shifted. - **Will my property tax increase or decrease?**: This cannot be answered in general terms, as it depends on three factors: the new property tax value of your property, the tax assessment rate, and your municipality’s adjusted tax rate. While the reform was planned to be revenue-neutral — meaning the municipality should collect the same total amount — within each municipality there are winners and losers. Property tax tends to increase for properties in prime locations with high land values, while owners in simpler areas are often relieved. Use our old-vs-new comparison to see your personal change immediately. - **Can I object to my property tax assessment?**: Yes, you can file an objection (Einspruch) with the responsible tax office within one month of receiving your property tax value notice. Carefully check whether the underlying data is correct: plot area, living area, land value, year of construction, and property type. Common sources of error include incorrect area figures or an overstated land value. The objection does not have a suspensive effect — you must continue paying the property tax in the meantime. However, if the correction is successful, you will receive a refund for any overpaid tax. - **Why does Bavaria have its own property tax model?**: Bavaria deliberately chose against the federal model because the state considers a purely area-based calculation to be fairer and simpler. In the Bavarian area model, property values and land values play no role — only the square meters of the plot and building count. Bavaria argues that this prevents rising real estate prices from automatically leading to higher property taxes and makes the calculation more transparent and comprehensible for owners. Critics counter that the model ignores value differences between prime and simple locations. - **Do tenants have to pay property tax?**: In principle, the property owner is the taxpayer — they receive the assessment and must pay the property tax to the municipality. However, the landlord may pass the property tax on to tenants in full as operating costs, provided this is agreed in the rental contract. This is the case in the vast majority of rental agreements. The property tax then appears in the annual operating cost statement. An increase in property tax due to the reform can therefore directly result in higher utility costs for tenants. - **What is the difference between property tax A and property tax B?**: Property tax A (agricultural) applies to agricultural and forestry businesses and their land. Property tax B (built-up) applies to all developed and developable plots — meaning residential buildings, condominiums, commercial properties, and undeveloped building land. For the vast majority of property owners, property tax B is relevant. The tax rates for A and B are set separately by municipalities and usually differ significantly. Our calculator computes property tax B, as it applies to the majority of all property owners. - **When is property tax due and in what installments?**: Property tax is due in four installments of one quarter of the annual amount each: on February 15, May 15, August 15, and November 15. Alternatively, owners can apply to the tax office to pay the property tax as a lump sum on July 1 — this application must be submitted by September 30 of the previous year. When ownership changes (e.g., buying a house), the new owner is only liable for property tax from January 1 of the following year. The payment dates apply uniformly throughout Germany. --- ## Divorce Cost Calculator (Scheidungskosten-Rechner) - [Calculator](https://rechenportal.de/scheidungskosten-rechner): Calculate and compare divorce costs - [English version](https://rechenportal.de/en/divorce-cost-calculator) ### Blog Articles - [How Much Does a Divorce Cost in Germany 2026?](https://rechenportal.de/en/divorce-cost-calculator/blog/divorce-costs-germany-2026) *(pillar article)*: All divorce costs at a glance: attorney fees, court costs, procedural value and hidden costs — explained simply. - [Amicable Divorce: Process, Costs & Benefits](https://rechenportal.de/en/divorce-cost-calculator/blog/amicable-divorce-process-costs): Why an amicable divorce is the best choice — process, costs and practical tips. - [Legal Aid for Divorce: Who Is Eligible?](https://rechenportal.de/en/divorce-cost-calculator/blog/legal-aid-divorce-eligibility): Legal aid explained simply: requirements, calculation and application for divorce. - [Calculating Equalization of Gains: What Am I Entitled To?](https://rechenportal.de/en/divorce-cost-calculator/blog/equalization-of-gains-calculation): How equalization of gains works: calculation, exceptions and what you can do. - [Separation Year: Rules, Exceptions & What to Know](https://rechenportal.de/en/divorce-cost-calculator/blog/separation-year-rules-exceptions): The separation year is mandatory — but there are exceptions. Everything about rules, duration and hardship divorce. - [Child Maintenance After Divorce: Düsseldorf Table 2026 Explained](https://rechenportal.de/en/divorce-cost-calculator/blog/child-maintenance-duesseldorf-table-2026): How much child maintenance do you need to pay? The Düsseldorf Table 2026 explained simply. ### FAQ - **What does a divorce cost in Germany?**: An amicable divorce in Germany typically costs between €1,500 and €4,000, depending on both partners' income and joint assets. A contested divorce can easily cost €5,000 to €15,000 or more, as two lawyers and potentially additional proceedings (custody, maintenance, equalization of gains) are involved. - **How is the procedural value calculated in a divorce?**: The procedural value is calculated as three times the combined monthly net income, plus 5% of joint assets. If pension equalization applies, 10% of the combined annual income per pension right is added. The minimum procedural value is €4,000. - **Do I need a lawyer for an amicable divorce?**: Yes, at least one lawyer is legally required. In an amicable divorce, one lawyer is sufficient to file the divorce petition. The other partner can agree to the petition without hiring their own lawyer, saving considerable costs. - **How long does a divorce take?**: An amicable divorce takes about 4-8 months after the separation year. The separation year is mandatory. A contested divorce can take 1-3 years, especially when custody, maintenance, or equalization of gains are disputed. - **What is legal aid and am I eligible?**: Legal aid (Verfahrenskostenhilfe/VKH) is state support for divorce proceedings costs. It's available to low-income individuals. Your disposable income after deducting allowances, maintenance obligations, and housing costs must be below €20. Costs are then covered by the state or repaid in installments. - **How much more does a contested divorce cost?**: In a contested divorce, attorney fees are doubled (two lawyers instead of one), and each additional proceeding (equalization, custody, maintenance, household goods, marital home) incurs its own court and attorney fees. Total costs are often 3-5 times higher than an amicable divorce. - **What is pension equalization and how much does it cost?**: Pension equalization divides the pension rights acquired during the marriage equally between spouses. It increases the procedural value and thus court and attorney costs. It can be excluded for marriages under 3 years or by notarial waiver. - **Can I deduct divorce costs from taxes?**: Since 2013, divorce costs generally cannot be claimed as extraordinary expenses for tax purposes. Exceptions only apply when divorce is existentially necessary (e.g., domestic violence). Attorney fees for related proceedings (equalization, maintenance) may be deductible as income-related expenses in some cases. - **What is a divorce settlement agreement?**: A divorce settlement agreement regulates the consequences of divorce (maintenance, equalization, custody, household goods) amicably before the court date. It's notarially certified and avoids expensive additional court proceedings. Notary costs are usually significantly lower than separate court proceedings. - **How can I reduce divorce costs?**: The most effective ways: 1) Amicable divorce with only one lawyer. 2) Divorce settlement agreement at the notary instead of separate court proceedings. 3) Mediation for disagreements. 4) Apply for legal aid if income is low. 5) Use online divorce services (same legal effect, but often cheaper lawyers). --- ## Child Support Calculator (Unterhaltsrechner) - [Calculator](https://rechenportal.de/unterhaltsrechner): Calculate child support using the Düsseldorf Table - [English version](https://rechenportal.de/en/child-support-calculator) ### Blog Articles - [Calculate Child Support 2026: Düsseldorf Table & Calculator](https://rechenportal.de/en/child-support-calculator/blog/child-support-calculator-2026) *(pillar article)*: Everything about calculating child support 2026: Düsseldorf Table, adjusted net income, child benefit offset and self-retention explained. - [Düsseldorf Table 2026: All Amounts & Income Groups](https://rechenportal.de/en/child-support-calculator/blog/duesseldorf-table-2026): The complete Düsseldorf Table 2026 with all 15 income groups, needs rates and payment amounts after child benefit deduction. - [Self-Retention in Child Support: How Much Do I Keep?](https://rechenportal.de/en/child-support-calculator/blog/self-retention-child-support-explained): Self-retention ensures the obligor's minimum subsistence. Current 2026 rates and what happens in a shortfall case. - [Shortfall in Child Support: What Happens When Income Is Insufficient?](https://rechenportal.de/en/child-support-calculator/blog/shortfall-child-support): In a shortfall case, income is insufficient for full support. How proportional reduction works and priority rules apply. - [Spousal Support After Divorce: Calculation, Duration & Exceptions](https://rechenportal.de/en/child-support-calculator/blog/spousal-support-after-divorce): How is spousal support calculated? The 3/7 difference method, employment bonus and when the claim ends. - [Child Benefit and Support: How Child Benefit Is Offset](https://rechenportal.de/en/child-support-calculator/blog/child-benefit-and-support-offset): Child benefit is half offset against cash support. Calculation, examples and common misconceptions. ### FAQ - **How is child support calculated using the Düsseldorf Table?**: The Düsseldorf Table assigns needs rates based on the obligor's adjusted net income and the child's age group. Half of the child benefit (€129.50 of €259) is deducted from the needs rate to determine the actual payment amount. The table assumes two dependants — more or fewer dependants shift the income group down or up accordingly. - **What is adjusted net income for child support purposes?**: Adjusted net income is monthly net income after deducting work-related expenses (e.g., commuting costs, work clothing), reasonable debt obligations, and other recognized liabilities. It forms the basis for classification in the Düsseldorf Table and thus determines the level of the support claim. - **How much child support do I have to pay per child in 2026?**: Support depends on your income group and the child's age. In the lowest income group (up to €2,100), the payment amount after child benefit deduction ranges from €355 to €564 per month, depending on the age group. With higher income, the amounts increase accordingly — in the highest group (up to €11,200), they can reach €547 to €839. - **What is the self-retention amount and how much is it in 2026?**: Self-retention is the minimum amount the obligor must keep for living expenses. As of 2026, it is €1,450 per month for employed obligors of minor children and €1,200 for unemployed obligors. For spousal support, self-retention is €1,600. If income falls below self-retention after support payments, a shortfall case applies. - **What happens in a shortfall case — if my income is insufficient?**: In a shortfall case, the obligor's income is not enough to pay full support for all dependants while maintaining the self-retention amount. Payment amounts are then proportionally reduced. Minor children have priority over adult children and spouses under section 1609 of the German Civil Code. - **Is child benefit offset against child support?**: Yes, half of the child benefit is offset against cash support. With a child benefit of €259 per child, €129.50 is deducted from the obligor's needs rate. The other half remains with the custodial parent with whom the child lives. For adult children, the full child benefit is offset. - **How is spousal support calculated after divorce?**: Post-marital spousal support is calculated using the 3/7 difference method. First, child support is deducted from the obligor's income. Then the difference between both spouses' adjusted net incomes is calculated, and 3/7 of that difference is set as support. The employed obligor additionally receives an employment bonus of 1/7 of their adjusted income. - **What is the priority order when there are multiple support claimants?**: Under section 1609 of the German Civil Code, the priority order is: 1) Minor unmarried children and privileged adult children. 2) Spouses and ex-spouses with long marriage duration or childcare responsibilities. 3) Non-privileged adult children. 4) Other support claimants. In a shortfall case, lower-ranking claimants are only served after higher-ranking ones are fully satisfied. - **Does child support change when my income changes?**: Yes, a significant change in income can justify an adjustment of support. Generally, an income change of more than 10% warrants recalculation. However, the adjustment must be actively claimed — it does not happen automatically. Both the obligor and the claimant can request a modification. - **Do I also have to pay support for adult children?**: Yes, if the adult child is still in education or vocational training, there is generally an obligation to pay support. Adult children are classified in the 18+ age group of the Düsseldorf Table. Unlike minors, both parents are proportionally liable for cash support based on their income. Self-retention for adult children is significantly higher at €1,750 compared to minors. --- ## Care Allowance Calculator (Pflegegeld-Rechner) - [Calculator](https://rechenportal.de/pflegegeld-rechner): Calculate care allowance & combined benefits - [English version](https://rechenportal.de/en/care-allowance-calculator) ### Blog Articles - [German Care Allowance 2026: Benefits, Care Levels & Eligibility — Complete Guide](https://rechenportal.de/en/care-allowance-calculator/blog/care-allowance-2026-benefits-care-levels) *(pillar article)*: Everything about German care allowance, professional care benefits, and combined benefits 2026: amounts by care level, additional benefits, application process, and tips to maximize your entitlements. - [How to Apply for a Care Level in Germany: Step-by-Step Guide](https://rechenportal.de/en/care-allowance-calculator/blog/apply-for-care-level-guide): How to apply for a care level with your care insurance: application, MDK assessment, objection and upgrade — explained step by step. - [Combined Care Benefits: How to Optimize Cash and In-kind Benefits](https://rechenportal.de/en/care-allowance-calculator/blog/combined-care-benefits-optimize): Combined benefits mix cash and professional care. How to find the optimal ratio and maximize your monthly benefits. - [Respite Care & Short-term Care: How to Use Your Budget Wisely](https://rechenportal.de/en/care-allowance-calculator/blog/respite-care-short-term-care-budget): Respite care (€1,612) and short-term care (€1,774): requirements, combination options, and tips for optimal budget use. - [MDK Assessment: How to Prepare for Your Care Level Evaluation](https://rechenportal.de/en/care-allowance-calculator/blog/mdk-assessment-preparation-tips): The MDK assessment determines your care level. How to prepare optimally: care diary, documents, and behavioral tips. - [Home Modifications for Care: Subsidies, Renovations & Applications](https://rechenportal.de/en/care-allowance-calculator/blog/home-modifications-care-subsidies): Up to €4,000 subsidy for accessible renovations: stair lift, bathroom conversion, door widening — which measures care insurance covers and how to apply. ### FAQ - **How much care allowance do I receive per month?**: The care allowance depends on the care level. Care Level 1 receives no cash allowance, Care Level 2 gets €332, Care Level 3 receives €573, Care Level 4 gets €765, and Care Level 5 receives €947 per month. Additionally, all care levels are entitled to the €125 monthly relief amount and €40 for care consumables. - **What is the difference between care allowance and professional care benefits?**: Care allowance (Pflegegeld) is a cash benefit paid directly to the care recipient, usually passed on to family caregivers as recognition. Professional care benefits (Sachleistungen) are paid directly to licensed care services providing professional care at home. The professional care amounts are higher than the cash allowance since professional care is more expensive. - **What are combined benefits and when are they worthwhile?**: Combined benefits (Kombileistung) mix cash allowance and professional care. If you use 60% of professional care benefits for a care service, you still receive 40% of the cash allowance. This is worthwhile when you need some professional help but family members also provide care. The total from combined benefits is usually higher than cash allowance alone. - **How do I apply for a care level?**: Submit an informal application to your care insurance fund (part of your health insurance). They commission the MDK (Medical Service) for an in-home assessment. The assessor evaluates six life areas using the NBA system. Based on the total score, the care level is determined. The entire process typically takes 4-6 weeks. - **What benefits am I entitled to with Care Level 1?**: Care Level 1 doesn’t include cash allowance or professional care benefits, but still offers important support: the €125 monthly relief amount, care consumables (€40/month), a home modification subsidy (up to €4,000), free care counseling, and access to caregiver training courses. - **What is respite care and who is eligible?**: Respite care (Verhinderungspflege) steps in when the primary caregiver is temporarily unavailable — due to vacation, illness, or personal appointments. From Care Level 2, an annual budget of €1,612 is available for substitute care by other persons or care services. The requirement is that the caregiver has been providing care for at least 6 months. - **Can I accumulate the monthly relief amount?**: Yes, unused relief amounts can be saved within a calendar year. Additionally, remaining amounts from the previous year can still be used until June 30 of the following year. This means up to €1,500 (12 × €125) can accumulate, which can be used for day or night care, short-term care, ambulatory care services, or recognized everyday support services. - **How do I prepare for the MDK assessment?**: Keep a care diary for at least two weeks documenting all care activities and their duration. During the appointment, show the actual care needs — don’t downplay anything. Have a trusted person present who knows the daily care routine. Have all relevant medical reports, medication plans, and hospital discharge summaries ready. - **Is care allowance offset against social welfare?**: No, care allowance is not counted as income for social welfare or Bürgergeld, as it is earmarked for ensuring care. The care allowance is meant to recognize voluntary care by family members or other non-commercial caregivers. However, in the case of residential care, the care allowance may be offset against nursing home costs. - **Which care consumables does the insurance cover?**: The care insurance covers up to €40 per month for consumable care products such as disposable gloves, disinfectant, bed protectors, face masks, and protective aprons. Additionally, technical care aids such as care beds, wheelchairs, and positioning aids are provided on loan or with a small co-payment. For consumables, there are often practical care boxes available by subscription. --- ## Mortgage Calculator (Immobilienkredit-Rechner) - [Calculator](https://rechenportal.de/immobilienkredit-rechner): Calculate your mortgage with amortization schedule - [English version](https://rechenportal.de/en/mortgage-calculator) ### Blog Articles - [German Mortgage Guide 2026: Independent Advice on Rates, Repayment & Purchase Costs](https://rechenportal.de/en/mortgage-calculator/blog/mortgage-guide-2026) *(pillar article)*: Everything you need to know about German mortgages: current rates, optimal repayment, purchase costs and tips for the best loan. - [Purchase Costs 2026: Transfer Tax, Notary & Broker Fees by Federal State](https://rechenportal.de/en/mortgage-calculator/blog/purchase-costs-2026-federal-state): A complete overview of all purchase costs when buying property in Germany in 2026: transfer tax by federal state, notary fees, and broker commissions. - [How Much Equity Do I Need to Buy a House in Germany?](https://rechenportal.de/en/mortgage-calculator/blog/equity-house-purchase-how-much): Find out how much equity you should bring to a property purchase and why covering purchase costs with savings is essential. - [Extra Repayments: Are They Worth It? Calculator + Strategy](https://rechenportal.de/en/mortgage-calculator/blog/extra-repayments-worth-it-strategy): Calculate how much you save with annual extra repayments and by how many years your loan term is shortened. - [Fixed-rate Period: 10, 15 or 20 Years? Making the Right Choice](https://rechenportal.de/en/mortgage-calculator/blog/fixed-rate-period-10-15-20-years-choice): Compare the pros and cons of different fixed-rate periods and find the optimal strategy for your mortgage financing. - [Refinancing Your Mortgage: Remaining Debt, Rates & Forward Loans Explained](https://rechenportal.de/en/mortgage-calculator/blog/refinancing-remaining-debt-forward-loans): What happens when your fixed rate expires? Learn about refinancing options, forward loans, and how to optimally manage your remaining mortgage debt. ### FAQ - **How high should the monthly mortgage payment be?**: A common rule of thumb is that your monthly mortgage payment should not exceed 35% of your household net income. For a net income of 4,000 EUR, that would be a maximum of 1,400 EUR per month. Many financial advisors recommend staying at 30% to maintain a buffer for unexpected expenses, repairs, or temporary income loss. Additionally, keep at least 3 monthly payments as an emergency reserve. - **What is the minimum equity I need?**: Ideally, you should bring 20-30% of the purchase price as equity. At a minimum, purchase costs (8-15% depending on the federal state) must be covered with your own funds, as banks typically do not finance these. A 100% mortgage without equity is possible with some banks but comes with significantly higher interest rates and greater risk. The more equity you contribute, the better your interest rate conditions will be. - **What are purchase costs and how high are they?**: Purchase costs are additional costs on top of the property price that apply to every real estate transaction. They consist of: property transfer tax (3.5-6.5% depending on the federal state), notary and land registry fees (approx. 1.5-2%), and potentially broker fees (3.57-7.14% incl. VAT). In total, expect 8-15% of the purchase price in additional costs. These should be paid entirely from equity, as they do not increase the property value. - **What is the difference between nominal and effective interest rate?**: The nominal interest rate (Sollzins) is the pure interest rate the bank charges for the loan. The effective interest rate (Effektivzins) additionally includes all other costs such as processing fees, account management fees, and the effect of repayment scheduling. The effective rate is therefore always slightly higher than the nominal rate and reflects the true annual cost of the loan. Always compare offers based on the effective interest rate, as only this allows a fair comparison. - **Is a longer fixed-rate period worth it?**: A longer fixed-rate period (e.g., 15 or 20 years instead of 10) typically costs a rate premium of 0.2-0.5 percentage points. In return, it protects against rising interest rates and provides planning certainty over a longer period. In a low-interest-rate environment, a long fixed-rate period is particularly advisable as you lock in favorable conditions long-term. When rates are high, a shorter period may make more sense if you expect rates to fall. - **What happens when the fixed-rate period ends?**: When the fixed-rate period expires, the remaining debt must be refinanced - this is called Anschlussfinanzierung. You can request a new offer from your current bank (prolongation) or switch to a different bank (refinancing). The follow-up financing is then at the current market rate, which may be higher or lower. With a forward loan (Forward-Darlehen), you can lock in favorable rates for your refinancing up to 5 years in advance. - **How much do I save with extra repayments?**: Extra repayments can significantly reduce interest costs. Example: On a loan of 300,000 EUR at 3.5% interest and 2% repayment, an annual extra repayment of 5,000 EUR saves tens of thousands of euros in interest over the full loan term. At the same time, the loan term is shortened by several years. Most contracts allow 5-10% extra repayment per year. Use this option whenever you have the financial flexibility. - **Can I buy a property without equity?**: Yes, some banks offer 100% financing or even 110% financing (including purchase costs). However, interest rates for full financing are significantly higher - often 0.5-1.0 percentage points above the rate with 20% equity. The risk is also greater: if property values decline, you could quickly owe more than the property is worth. Full financing should only be considered if you have a high, stable income. - **What subsidies are available for home buyers in 2026?**: Germany offers various subsidy programs: KfW provides low-interest loans for energy-efficient construction and renovation (e.g., KfW program 261). For families with children, there are successor programs to the Baukindergeld that vary by federal state. Additionally, some federal states support the purchase of owner-occupied housing with their own programs. Check with your municipality and KfW for current funding opportunities. - **How does the repayment rate affect the loan term?**: The repayment rate has an enormous impact on the total loan term. At an interest rate of 3.5%, it takes about 46 years to fully repay the loan with an initial repayment rate of 1%. With 2% repayment, it takes about 30 years, and with 3% repayment only about 24 years. Each additional percentage point of repayment saves tens of thousands of euros in interest over the loan term. A minimum initial repayment rate of 2%, ideally 3%, is recommended. --- ## Renovation Cost Calculator (Renovierungskosten-Rechner) - [Calculator](https://rechenportal.de/renovierungskosten-rechner): Calculate renovation costs with KfW subsidies - [English version](https://rechenportal.de/en/renovation-cost-calculator) ### Blog Articles - [Renovation Costs in Germany 2026: Price Per Square Meter Guide](https://rechenportal.de/en/renovation-cost-calculator/blog/renovation-costs-per-sqm-2026) *(pillar article)*: The complete price guide: costs by room type, materials vs. labor, regional differences, DIY savings and KfW subsidies. - [Bathroom Renovation Costs 2026: Complete Price Overview](https://rechenportal.de/en/renovation-cost-calculator/blog/bathroom-renovation-costs): How much does a new bathroom cost? Prices for tiles, fixtures, walk-in showers and accessibility features. - [Kitchen Renovation: What Does It Really Cost?](https://rechenportal.de/en/renovation-cost-calculator/blog/kitchen-renovation-costs): From a simple refresh to a premium fitted kitchen — all costs at a glance with money-saving tips. - [Energy Retrofit: Costs, Subsidies & Requirements 2026](https://rechenportal.de/en/renovation-cost-calculator/blog/energy-retrofit-costs-subsidies): Insulation, heat pumps, windows: how much does an energy retrofit cost and what subsidies are available? - [KfW Subsidies 2026: Available Grants for Renovation](https://rechenportal.de/en/renovation-cost-calculator/blog/kfw-subsidies-renovation-2026): Individual measures, heating replacement bonus and iSFP surcharge — all current KfW programs explained. - [Tradesperson Hourly Rates in Germany 2026](https://rechenportal.de/en/renovation-cost-calculator/blog/tradesperson-hourly-rates): What does an electrician, tiler or painter charge per hour? Regional price differences and negotiation tips. - [DIY Renovation: What’s Worth Doing Yourself — and What Isn’t?](https://rechenportal.de/en/renovation-cost-calculator/blog/diy-renovation-guide): Painting, laying floors, tiling? Which jobs you can do yourself and where you should call in a professional. ### FAQ - **How much does renovation cost per square meter?**: Costs vary significantly by room type and quality level. Living rooms run €100–400/sqm, bathrooms €600–1,900/sqm, and kitchens €350–1,400/sqm. Regional differences (Bavaria up to +15%) and building age further influence prices. Our calculator factors in all of these for a realistic estimate. - **Is a bathroom or kitchen more expensive to renovate?**: Per square meter, a bathroom is significantly more expensive: €600–1,900/sqm versus €350–1,400/sqm for a kitchen. However, kitchens are often larger and a new fitted kitchen alone can cost €3,000–20,000. In absolute terms, both frequently land in the €8,000–25,000 range. - **What KfW subsidies are available for renovation?**: The KfW subsidizes individual energy measures (BEG EM): heat pumps at 30%, insulation and windows at 15%, solar thermal at 25%, and pellet heating at 20%. An additional 5% bonus is available with an individual renovation roadmap (iSFP). Funding is capped at €60,000 per measure per housing unit. - **How much can I save with DIY?**: DIY can reduce labor costs — realistically 20–40% savings on simple tasks like painting, wallpapering or laying laminate. For electrical work, plumbing and load-bearing walls, always hire professionals. Our calculator shows potential savings based on your chosen DIY percentage. - **What do tradespeople charge per hour?**: Hourly rates vary by trade between €40 and €80 net: painters around €40–55, tilers €45–65, electricians €50–70, and plumbers €55–80. In southern Germany and Hamburg, prices are up to 15% higher than in eastern Germany. - **How long does a bathroom renovation take?**: A standard bathroom renovation takes 2–4 weeks, depending on scope and size. Simple re-tiling and fixture replacement can be done in 2 weeks, while a complete renovation with layout changes can take up to 6 weeks. Plan an additional 1–2 weeks of lead time for material orders. - **Am I required to do an energy retrofit? (GEG requirement)**: Germany’s Building Energy Act (GEG) mandates certain retrofit obligations upon change of ownership: insulation of the top-floor ceiling, replacement of old oil/gas boilers (over 30 years), and minimum standards. From 2024, new heating systems must use at least 65% renewable energy. - **What are hidden renovation costs?**: Commonly underestimated costs include: debris disposal (€500–2,000), site setup, unexpected damage behind tiles or under floors, building permits for structural walls, and temporary accommodation during renovation. Always plan a 10–15% buffer. - **When is a full renovation worth it vs. partial?**: A full renovation makes sense when more than 50% of the building fabric is affected, the building was constructed before 1970, and all building services need replacing. For newer buildings or when only individual rooms are affected, targeted partial renovation is usually more cost-effective. - **Which federal state has the highest labor costs?**: Bavaria and Hamburg are the most expensive with a ~15% surcharge, followed by Baden-Württemberg (+12%) and Hesse (+10%). Saxony-Anhalt and Thuringia are cheapest at about 15% below the national average. These regional differences are automatically factored into our calculator. --- ## Wedding Cost Calculator (Hochzeitskosten-Rechner) - [Calculator](https://rechenportal.de/hochzeitskosten-rechner): Plan your wedding budget with regional prices - [English version](https://rechenportal.de/en/wedding-cost-calculator) ### Blog Articles - [How Much Does a Wedding Cost in Germany 2026? The Ultimate Cost Guide](https://rechenportal.de/en/wedding-cost-calculator/blog/wedding-cost-germany-2026) *(pillar article)*: Average wedding costs, regional differences, saving tips and hidden costs - everything at a glance. - [Wedding in Bavaria: Costs, Venues & Tips](https://rechenportal.de/en/wedding-cost-calculator/blog/wedding-bavaria-costs): How much does a wedding cost in Bavaria? Popular venues, regional specialties and prices. - [Wedding on a Budget: 20 Money-Saving Tips](https://rechenportal.de/en/wedding-cost-calculator/blog/wedding-budget-saving-tips): How to plan a dream wedding on a budget - 20 proven money-saving tips. - [Wedding Food: Buffet vs. Sit-Down - Cost Comparison](https://rechenportal.de/en/wedding-cost-calculator/blog/wedding-food-buffet-vs-menu): Buffet or sit-down menu? We compare costs, advantages, and what to consider. - [Wedding Photographer Cost: What Should You Pay?](https://rechenportal.de/en/wedding-cost-calculator/blog/wedding-photographer-costs): How much does a wedding photographer cost? Price comparison, services and selection tips. - [Civil vs. Free Ceremony: Cost Comparison](https://rechenportal.de/en/wedding-cost-calculator/blog/civil-vs-free-ceremony-costs): How much does a civil ceremony cost vs. a free ceremony? Full cost comparison. ### FAQ - **How much does an average wedding cost in Germany?**: Average costs are around 15,000 euros. Depending on the region, guest count and expectations, the budget can range from 5,000 to 50,000+ euros. Southern Germany and major cities tend to be more expensive. - **What are the biggest cost items at a wedding?**: Venue and catering typically account for 50-60% of total costs. Photographer, music and flowers follow as the next largest items. The wedding dress and rings are further significant expenses. - **How much does a wedding cost per guest?**: Expect 100-250 euros per guest, depending on the catering style and venue. With a buffet at a mid-range venue, the average is around 130 euros per person. - **Can you get married in Germany for under 5,000 euros?**: Yes, with creativity it is possible. Choose a weekday, use a restaurant instead of an event venue, opt for DIY decoration and ask friends for help with photography and music. - **Are Saturday weddings more expensive?**: Yes, significantly. Saturdays during peak season (summer) cost up to 20% more than Fridays. Weekdays can save you up to 20% compared to Saturday. - **How much does a wedding photographer cost?**: A professional wedding photographer costs between 800 euros (half day) and 3,500 euros (full day with video). The average for a full day is around 1,800 euros. - **Which federal state is cheapest for weddings?**: Saxony-Anhalt and Mecklenburg-Vorpommern offer the lowest prices (about 20% below the national average). Hamburg and Bavaria are the most expensive (15-20% above average). - **What are hidden wedding costs?**: Often underestimated are: tips (5-10% of catering), overtime charges for DJ/photographer, setup and teardown costs, tasting menu, guest transport and last-minute changes. - **How much buffer should you plan for a wedding budget?**: Plan at least 10-15% of the total budget as a buffer. Experience shows that actual costs are almost always higher than planned - due to spontaneous wishes and unforeseen expenses. - **Is a wedding planner worth it financially?**: A wedding planner costs around 2,000-3,500 euros but can often save 10-15% of the total budget through better negotiations and avoiding common mistakes. For weddings over 20,000 euros, it can pay for itself. --- ## Parental Allowance (Elterngeld) Calculator (Elterngeld-Rechner) - [Calculator](https://rechenportal.de/elternzeit-rechner): Calculate your German Elterngeld (parental allowance) 2026: basic & Plus, with monthly income overview for parental leave - [English version](https://rechenportal.de/en/parental-leave-calculator) ### Blog Articles - [German Parental Leave Benefits 2026: Everything You Need to Know](https://rechenportal.de/en/parental-leave-calculator/blog/parental-leave-germany-2026-guide) *(pillar article)*: What is Elterngeld, who is eligible, how is it calculated? The complete guide with tips and pitfalls. - [Tax Class Switch Before Birth: Maximize Your Parental Benefits](https://rechenportal.de/en/parental-leave-calculator/blog/tax-class-switch-parental-benefits): Why switching tax classes can increase your Elterngeld by several hundred euros and what to consider. - [ElterngeldPlus vs. Basic: Which Pays More?](https://rechenportal.de/en/parental-leave-calculator/blog/elterngeldplus-vs-basic): Comparison of both variants with calculation examples — when each model pays off. - [Parental Benefits for Self-Employed in Germany](https://rechenportal.de/en/parental-leave-calculator/blog/parental-benefits-self-employed): How Elterngeld is calculated for self-employed — profit determination, tax returns and common mistakes. - [Part-time During Parental Leave: How to Calculate](https://rechenportal.de/en/parental-leave-calculator/blog/part-time-parental-leave-calculator): How part-time work affects Elterngeld and when ElterngeldPlus with part-time pays off. - [Parental Benefit Income Cap: Who Loses Eligibility?](https://rechenportal.de/en/parental-leave-calculator/blog/parental-benefit-income-cap): The new income cap from 2025 — who is affected and what options remain. ### FAQ - **How is Elterngeld calculated?**: Elterngeld is based on Elterngeld-Netto — a special net income calculated from gross minus flat-rate deductions (tax, social insurance). The replacement rate ranges from 65% to 100%, depending on income. Minimum: €300/month, maximum: €1,800/month (basic Elterngeld). - **What's the difference between basic Elterngeld and ElterngeldPlus?**: Basic Elterngeld pays up to €1,800/month for max. 14 months. ElterngeldPlus pays half (max. €900) for double the duration. ElterngeldPlus is especially worthwhile when working part-time during parental leave. - **How many months of Elterngeld can I receive?**: A total of 14 months of basic Elterngeld for both parents combined (max. 12 per person, min. 2 'partner months'). Single parents can claim all 14 months alone. With ElterngeldPlus, the duration doubles. - **Is it worth switching tax classes before birth?**: Yes, often! If the parent receiving Elterngeld switches to tax class III, the Elterngeld-Netto and thus the Elterngeld increases. The switch must happen at least 7 months before birth to be considered in the calculation. - **Do I get Elterngeld if I work part-time?**: Yes! You can work up to 32 hours/week and still receive Elterngeld. The benefit is then calculated based on the difference between pre-birth net income and part-time net income. - **What is the minimum Elterngeld?**: The minimum Elterngeld is €300/month (basic) or €150/month (ElterngeldPlus). It is paid even if you had no income before birth — e.g., students or homemakers. - **What is the sibling bonus?**: If you have a child under 3 or two children under 6, you receive a sibling bonus: +10% of Elterngeld, at least +€75 (basic) or +€37.50 (Plus) per month. - **Can both parents receive Elterngeld simultaneously?**: Yes, both parents can receive Elterngeld at the same time. However, simultaneous months are deducted from the total 14 months. The partnership bonus (4 extra months each) requires both to work 24-32 hours/week. - **How does the 2025 income cap affect eligibility?**: Since 2025: Couples with taxable income above €200,000 and single parents above €150,000 are no longer eligible for Elterngeld. Previously, the limit was €300,000 (couples) and €250,000 (single parents). - **When do I need to apply for Elterngeld?**: Elterngeld can only be applied for after birth, but is paid retroactively for up to 3 months before the application month. Tip: Apply as early as possible after birth, ideally within the first 3 months. --- ## Area Calculator (Flächen-Rechner) - [Calculator](https://rechenportal.de/flaechenrechner): Calculate area and perimeter: rectangle, circle, triangle, trapezoid and more - [English version](https://rechenportal.de/en/area-calculator) ### Blog Articles - [Area Calculation: All Formulas at a Glance](https://rechenportal.de/en/area-calculator/blog/area-calculation-formulas-guide) *(pillar article)*: Complete guide to area calculation — rectangle, circle, triangle, trapezoid and more with formulas, examples and tips. - [Calculate Square Meters: Room, Apartment & Property](https://rechenportal.de/en/area-calculator/blog/square-meter-calculation-room): How to calculate the square meters of a room or apartment — with tips for sloped ceilings and irregular floor plans. - [Circle Area: Formula, Derivation & Examples](https://rechenportal.de/en/area-calculator/blog/circle-area-formula): Calculate circle area with πr² — explained step by step with practical applications from everyday life and engineering. - [Triangle Area: 4 Methods Compared](https://rechenportal.de/en/area-calculator/blog/triangle-area-methods): Calculate triangle area using base × height, Heron's formula, cross product and trigonometry — when to use which method? - [Living Space Calculation (WoFlV): The Correct Method](https://rechenportal.de/en/area-calculator/blog/living-space-calculation-woflv): Calculate living space per the German WoFlV regulation — with rules for sloped ceilings, balconies and terraces. - [Plot Area: How to Calculate Irregular Shapes](https://rechenportal.de/en/area-calculator/blog/plot-area-irregular-shapes): Calculate irregular plot areas — using triangle decomposition, the Shoelace formula and GPS methods. ### FAQ - **How do you calculate square meters?**: For a rectangle, multiply length × width (both in meters). A room of 5 m × 4 m has an area of 20 m². For irregular shapes, divide them into simple forms (rectangles, triangles) and add the partial areas. - **How do you calculate circle area?**: Circle area = π × r² (Pi times radius squared). If you only know the diameter, halve it first: r = d / 2. Example: A circle with radius 3 m has area π × 3² = 28.27 m². - **What is the difference between area and perimeter?**: Area measures the content of a flat shape (e.g. in m²) — how much space it covers. Perimeter is the length of the outer boundary (in m). For a 3 × 4 m rectangle, the area is 12 m² and the perimeter is 14 m. - **How do you convert m² to cm²?**: 1 m² = 10,000 cm² (because 1 m = 100 cm, so 100 × 100 = 10,000). Multiply the area in m² by 10,000. Conversely: cm² divided by 10,000 gives m². Similarly: 1 m² = 1,000,000 mm². - **How do you calculate triangle area?**: Triangle area = (base × height) / 2. The height is perpendicular to the base. Example: base 6 m, height 4 m → area = (6 × 4) / 2 = 12 m². Alternatively: use Heron's formula when all three sides are known. - **What is a hectare?**: One hectare (ha) = 10,000 m² = 100 m × 100 m. It is mainly used in agriculture and forestry. For comparison: a football field is about 0.714 ha (7,140 m²). 1 km² = 100 ha. - **How do you calculate living space?**: Per the German WoFlV regulation: rooms with ceiling height above 2 m count 100%. Areas with 1–2 m height (e.g. under sloped ceilings) count 50%. Below 1 m does not count. Balconies and terraces are typically counted at 25%. - **How do you calculate trapezoid area?**: Trapezoid area = ((a + b) / 2) × h, where a and b are the two parallel sides and h is the height (perpendicular distance). Example: a = 4 m, b = 8 m, h = 5 m → area = ((4 + 8) / 2) × 5 = 30 m². - **What is π (Pi)?**: π (Pi) is the ratio of a circle's circumference to its diameter — a mathematical constant with the value ≈ 3.14159. Pi is irrational (infinitely many non-repeating decimals) and appears in formulas for circle area (πr²), circumference (2πr) and ellipse area (πab). - **How do you calculate irregular shapes?**: Calculate irregular areas by decomposing them into simple partial shapes (rectangles, triangles, circle segments) and summing them up. For plots, the Shoelace formula (Gauss area formula) helps: enter the vertex coordinates and get the exact area. Modern GPS apps calculate the area automatically when walking the property boundaries. --- ## Freelance Rate Calculator (Stundensatz-Rechner) - [Calculator](https://rechenportal.de/freelance-stundensatz-rechner): Calculate your fair freelance hourly rate - [English version](https://rechenportal.de/en/freelance-rate-calculator) ### Blog Articles - [How to Calculate Your Freelance Rate: The Complete 2026 Guide](https://rechenportal.de/en/freelance-rate-calculator/blog/freelance-rate-guide-2026) *(pillar article)*: Why most freelancers undercharge and how to calculate your fair hourly rate step by step. - [Freelance Design Rates: What to Charge](https://rechenportal.de/en/freelance-rate-calculator/blog/freelance-design-rates): Market rates for designers, illustrators and creatives in Germany — with positioning tips. - [KSK: Benefits for German Freelancers](https://rechenportal.de/en/freelance-rate-calculator/blog/ksk-benefits-freelancers): What is the KSK, who can join, and how much do you save on social contributions? Everything you need to know. - [Freelancer Taxes in Germany: What You Really Pay](https://rechenportal.de/en/freelance-rate-calculator/blog/freelancer-taxes-germany): Income tax, VAT, trade tax — which taxes apply to freelancers and how much is left over? - [Daily vs. Hourly vs. Fixed Price: Which is Better?](https://rechenportal.de/en/freelance-rate-calculator/blog/daily-vs-hourly-vs-fixed): Three billing models compared — when each model works best for freelancers. - [How to Negotiate Your Freelance Rate](https://rechenportal.de/en/freelance-rate-calculator/blog/negotiate-freelance-rate): Practical negotiation tips for freelancers: how to communicate your price confidently and still win the project. ### FAQ - **How do I calculate my freelance rate?**: Your minimum hourly rate is derived from three building blocks: First, your desired net annual income divided by (1 − tax rate) to get required gross profit. Second, add your annual business costs (office, software, insurance, accountant). Third, divide the total by your realistically billable hours per year — already deducting vacation, public holidays, sick days, and admin time. Never forget: as a freelancer, you pay all social contributions yourself. - **What is a good freelance hourly rate?**: A ‘good’ rate depends heavily on industry, experience and location. IT freelancers (developers, data scientists) typically charge €80–150/h in Germany, management consultants €90–180/h, designers and copywriters €50–90/h. Beginners often start at €40–60/h. More important than market comparison is whether your rate covers all costs and provides adequate income. Our calculator shows you the exact break-even point. - **What costs should freelancers account for?**: Freelancers must cover all costs that employees often overlook: health and nursing insurance (€350–800/month statutory), pension contributions (voluntary, recommended at least 10–15% of income), professional liability insurance, accountant fees, hardware and software, office or coworking space, training, and marketing. You must also plan for income tax prepayments and potentially VAT. Realistically, this adds up to 20–40% overhead quickly. - **How many billable hours are realistic per year?**: A year has 52 weeks of 5 working days = 260 days. Typical deductions: 25–30 vacation days, 10–13 public holidays, 5–10 sick days, 10–15 training days. Of remaining days, 20–30% of time is typically non-billable (admin, acquisition, admin). Realistically, 900–1,400 billable hours per year remain. Freelancers calculating with 1,800–2,000 hours massively underestimate their required hourly rate. - **Do freelancers (Freiberufler) pay trade tax?**: No — this is one of the biggest advantages of freelancer status. Freelancers under §18 EStG (e.g. doctors, lawyers, architects, IT consultants, journalists, designers) do not pay trade tax. Sole traders and GmbHs, however, are subject to trade tax above a €24,500 profit exemption. Whether you qualify as a freelancer or trader is determined by the tax office based on your activity — clarify this with a tax advisor if in doubt. - **What is the KSK and who can join?**: The Künstlersozialkasse (KSK) is a state institution through which self-employed artists and journalists gain access to statutory social insurance on favorable terms. Members pay only the employee share — the employer share is funded by a federal subsidy (20%) and a levy on clients (KSK levy, approx. 5%). Eligibility requires working independently as an artist or journalist, earning at least €3,900 per year, and doing this as a primary activity. Annual savings are often several thousand euros. - **Should I charge hourly or daily rates?**: Both models have advantages and drawbacks. The hourly rate is transparent and protects you from unpaid overtime on small projects. The daily rate (typically 8h) is standard in many industries, especially consulting and IT — it simplifies quotes and reduces administrative effort. Fixed project prices are most profitable when you know the scope precisely and work efficiently. A rule of thumb: daily rate = hourly rate × 7 (not 8, since a productive day contains only approx. 6–7 billable hours). - **What should my utilization rate be?**: A utilization rate of 70–80% is realistic and healthy for freelancers. 100% is virtually impossible — you need time for acquisition, administration, proposals, and gaps between projects. Those running below 60% should actively increase acquisition efforts or reconsider their target market. Above 90% leads to burnout long-term and leaves no buffer for new opportunities. Our calculator shows directly how utilization affects your minimum hourly rate. - **How much retirement savings do freelancers need?**: Since freelancers don’t automatically pay into statutory pension insurance (exceptions: tradespeople, teachers, midwives), they must save privately. Financial experts recommend setting aside 10–20% of gross revenue for retirement. Popular options include: Rürup pension (tax-deductible up to €27,566 in 2026), ETF savings plans, real estate, or voluntary contributions to the statutory pension scheme. Start early — for a 35-year-old, starting 10 years later makes a difference of thousands of euros in retirement gap. - **How often should I raise my rate?**: Experienced freelancers recommend reviewing your hourly rate at least once a year and adjusting as needed. Reasons to raise your rate: increased cost of living (2–3% inflation p.a. is normal), new qualifications or certifications, consistently high utilization (waiting list), growing expertise in a niche, or when clients accept proposals without negotiating. Typical increases of 5–15% for existing clients — charge new clients directly at the new rate. Communicate changes 4–8 weeks in advance. --- ## Moving Cost Calculator (Umzugskosten-Rechner) - [Calculator](https://rechenportal.de/umzugskosten-rechner): Calculate all moving costs including hidden expenses - [English version](https://rechenportal.de/en/moving-cost-calculator) ### Blog Articles - [How Much Does Moving Cost in Germany 2026? Complete Cost Breakdown](https://rechenportal.de/en/moving-cost-calculator/blog/moving-costs-2026-complete) *(pillar article)*: Moving costs in detail: transport, renovation, deposit, double rent and all hidden costs at a glance. - [Moving in Berlin: Costs & Tips](https://rechenportal.de/en/moving-cost-calculator/blog/moving-berlin-costs): How much does moving in Berlin cost? All costs, the best moving companies and a practical checklist. - [DIY vs. Moving Company: Cost Comparison](https://rechenportal.de/en/moving-cost-calculator/blog/diy-vs-moving-company): Is a moving company worth it? An honest cost comparison with all pros and cons. - [Moving Checklist: Complete Timeline](https://rechenportal.de/en/moving-cost-calculator/blog/moving-checklist-timeline): The ultimate moving checklist: From 8 weeks before to 1 week after — don't forget anything. - [Parking Permit for Moving: How to Apply](https://rechenportal.de/en/moving-cost-calculator/blog/parking-permit-moving): Parking permit for moving: What it costs, how long the application takes and what to watch out for. - [Apartment Handover: What Repairs Are Required?](https://rechenportal.de/en/moving-cost-calculator/blog/apartment-handover-repairs): Do I have to paint when moving out? What the law says about cosmetic repairs and what landlords can demand. ### FAQ - **What does a move cost on average?**: The average moving costs in Germany range from €600 to €4,000 — depending on apartment size, distance, and whether you organize yourself or hire a moving company. For a 2-room apartment within the same city, a moving company typically costs €800–1,500, while a long-distance move of a 4-room apartment can quickly reach €3,000–6,000. On top of that, hidden costs like deposits, double rent, and renovation often double the total amount. Our calculator accounts for all these items and gives you a realistic overview. - **Is a moving company worth it?**: Whether a moving company is worth it depends on your situation. For small apartments (1–2 rooms) within the same city, you can often save 50–70% with a rental van and helpers. From 3 rooms onward, for long distances, or without friends to help, a moving company is almost always worth it — especially with fragile or heavy furniture. Also consider the risk: professionals are insured, while with DIY moves you're liable for damage to the stairwell or belongings. Get at least three quotes and compare exactly which services are included. - **How much does moving cost per cubic meter?**: Moving companies often calculate internally by volume in cubic meters. As a guideline, expect €25–50 per m³ for a local move and €50–80 per m³ for long-distance moves (over 100 km). A typical 60 m² apartment has about 20–30 m³ of moving volume. However, many factors influence the price: floor without elevator, narrow staircases, heavy transports (piano, safe), and seasonal demand (July/August and end of month are more expensive). Always ask whether packing materials, parking permits, and insurance are included in the quote. - **What hidden costs are there when moving?**: Most people significantly underestimate the true cost of moving. Commonly forgotten items include: deposit for the new apartment (often 3 months cold rent, i.e. €1,500–3,000), double rent during the transition (1–2 months), renovation of the old apartment (painting: €200–800, with floors: €500–1,500), mail forwarding (€28.90), internet transfer or new setup (€50–100), and new furnishings. Parking permits (€50–250 depending on the city), re-registration fees, and vehicle re-registration also add up. Our calculator captures all these items systematically. - **How much does a parking permit for moving cost?**: The cost of a parking permit for moving varies considerably by city and required length. In most cities, you pay €50–150 for the official permit plus setup fees for the signs (€30–100). In Munich and Hamburg, it can cost €200–300. Applications usually need to be submitted 2–4 weeks before the move. Without a parking permit, you risk the moving truck not finding a parking spot — which delays the move and causes additional carrying costs due to longer distances. In old-building neighborhoods with limited parking, it's almost always worthwhile. - **Do I have to paint the old apartment?**: The obligation for cosmetic repairs depends on your lease agreement. In 2015, the German Federal Court ruled that rigid renovation clauses (e.g., 'paint every 3 years') are invalid. However, flexible clauses requiring renovation 'as needed' are valid if you return the apartment in significantly worse condition than when you moved in. Without a valid clause, you don't have to renovate at all. In practice, most landlords at least expect you to paint in light, neutral colors if you painted the walls in bright colors. When in doubt, check your lease or consult the tenants' association. - **How do I set up mail forwarding?**: You can set up mail forwarding with the postal service online or at any post office. The cost is €28.90 for 12 months (online) or €34.90 at a branch. The order applies to all mail addressed to your name and can be set up as early as 5 business days before the move. It's recommended to submit the application at least 1–2 weeks in advance for a smooth transition. Additionally, you should update your address directly with your bank, insurance companies, employer, tax office, and important online shops. - **What does moving from Berlin to Munich cost?**: A long-distance move from Berlin to Munich (approx. 585 km) costs between €2,000 and €7,000 with a moving company, depending on apartment size. For a 2-room apartment (approx. 50 m²), expect €2,000–3,500; for a 3-room apartment (approx. 75 m²), €3,500–5,000; and for a 4-room apartment (approx. 100 m²), €5,000–7,000. Additional costs include fuel (approx. €150–200 for a truck), possible overnight stays, and highway tolls. DIY moves save about 40–60% on transport, but you need to budget for a rental truck (from €150/day), helpers, and food. - **How long does a move take?**: The actual moving duration depends on apartment size, floor level, and number of helpers. A 1–2 room local move with 2–3 helpers typically takes 4–6 hours. A 3-room move takes 6–8 hours, and a larger apartment (4+ rooms) takes a full day. For long-distance moves, driving time is added. Professional movers are often faster because they have routine, proper equipment, and sufficient staff. Packing takes an additional 1–2 days. The entire moving phase — from the first boxes to the last unpacked shelf — usually stretches over 2–4 weeks. - **Can I deduct moving costs from taxes?**: Yes, under certain conditions you can deduct moving costs from your taxes. For work-related moves (e.g., job change, transfer, reducing commute by at least 1 hour), actual costs are deductible as income-related expenses — transport, double rent, broker fees, and travel costs. Additionally, there is a flat-rate moving allowance (2026: €886 for the person moving, €590 per additional person). For private moves, you can at least deduct 20% of moving company costs as household-related services, up to a maximum tax reduction of €4,000 per year. --- ## Roommate Calculator (WG-Rechner) - [Calculator](https://rechenportal.de/wg-rechner): Split flatmate costs fairly - [English version](https://rechenportal.de/en/roommate-calculator) ### Blog Articles - [Splitting Shared Apartment Costs Fairly — The Complete 2026 Guide](https://rechenportal.de/en/roommate-calculator/blog/splitting-shared-apartment-costs-guide) *(pillar article)*: Everything about fair cost splitting in shared housing: rent by room size, utilities, groceries, and conflict prevention. - [How to Split the Utility Bill in a Shared Apartment](https://rechenportal.de/en/roommate-calculator/blog/split-utility-bill-shared-apartment): How to fairly divide the annual utility bill — even when flatmates moved in or out mid-year. - [Broadcasting Fee in Shared Apartments: Who Pays?](https://rechenportal.de/en/roommate-calculator/blog/broadcasting-fee-shared-apartment): One fee per household — but who pays? Everything about the broadcasting fee in shared housing. - [Creating a Cleaning Schedule for Your Shared Apartment](https://rechenportal.de/en/roommate-calculator/blog/cleaning-schedule-shared-apartment-tips): The right cleaning schedule keeps your flat running smoothly. Templates, tips, and proven systems. - [Splitting Rent by Room Size: The Fair Method](https://rechenportal.de/en/roommate-calculator/blog/splitting-rent-by-room-size): Why equal rent is rarely fair and how to correctly apply the square-metre method. - [New Roommate Moving In: Adjusting Costs and Contracts](https://rechenportal.de/en/roommate-calculator/blog/new-roommate-adjusting-costs): Checklist for a flatmate change: deposit, utility share, lease agreement, and handover. ### FAQ - **How do you split rent fairly in a shared apartment?**: The fairest method is splitting by room size: everyone pays proportionally to their room's area. Common areas (kitchen, bathroom, hallway) are split equally. Our calculator does this automatically. - **What are utility costs and how are they split in a WG?**: Utility costs include heating, water, waste disposal, caretaker, and insurance. They're typically split equally since consumption in shared spaces can't be measured individually. - **Who pays the broadcasting fee in a shared apartment?**: The broadcasting fee (EUR 18.36/month) is charged per household, not per person. In a shared flat, it's typically split equally. Officially, the person who registered is liable. - **How does the annual utility bill work in a WG?**: The annual settlement compares advance payments with actual costs. The additional payment or credit is split among everyone who lived there during the billing period — proportionally by months. - **What happens when a flatmate moves out?**: When moving out, utility costs are calculated proportionally. The departing flatmate only pays for the months they actually lived there. Outstanding expenses should be settled beforehand. - **Does rent always have to be split equally?**: No! Equal splitting is only fair when all rooms are the same size and equally attractive. With different room sizes, splitting by square metres is more equitable. - **What's the easiest way to split groceries in a WG?**: Best practice is to collect all expenses over a period (e.g., one month) and then settle up. Our Settle Up tab does exactly that: everyone enters what they paid, and the calculator determines the minimum number of transfers. - **What apps are good for WG expense tracking?**: There are various commercial expense-splitting apps. Our roommate calculator offers a free alternative right in the browser — no registration, no data storage. - **How do you avoid money conflicts in a shared apartment?**: Clear rules from the start: rent by room size, utilities equally, regular settlement of shared expenses. Transparency and a fixed settlement system prevent 90% of conflicts. - **Can you deduct shared apartment costs from taxes?**: Partially: craftsman services and household services (e.g., stairwell cleaning) can be partially deducted. Rent itself isn't deductible for private individuals, except for a home office. --- ## 3-4-5 Method Calculator (3-4-5-Methode) - [Calculator](https://rechenportal.de/345-methode): Check right angles using the Pythagorean theorem - [English version](https://rechenportal.de/en/345-methode) ### Blog Articles - [The 3-4-5 Method: Checking Right Angles on the Construction Site](https://rechenportal.de/en/345-methode/blog/345-method-right-angle-construction) *(pillar article)*: Everything about the 3-4-5 method: How the Pythagorean theorem helps you check right angles on the construction site. With practical examples, multiples, and tolerance values. - [Checking Right Angles Without Tools: 3 Methods](https://rechenportal.de/en/345-methode/blog/checking-right-angles-methods): Three proven methods to check right angles without expensive tools: 3-4-5 method, diagonal comparison, and string frame method. Explained step by step. - [Pythagoras on the Construction Site: Practical Applications](https://rechenportal.de/en/345-methode/blog/pythagoras-construction-practice): The Pythagorean theorem is not just school knowledge - it is indispensable on the construction site. From roof pitch to staircase building: how to use a2+b2=c2 in practice. - [Staking Out Foundations: How to Get Right Angles](https://rechenportal.de/en/345-methode/blog/staking-foundations-right-angles): Right angles are crucial when building foundations. Learn how to stake out your foundation perfectly square using the 3-4-5 method and a string frame. - [Laser Square vs. 3-4-5: Which Is More Accurate?](https://rechenportal.de/en/345-methode/blog/laser-square-vs-345-method): Laser angle finder or 3-4-5 method? We compare accuracy, cost, handling, and use cases of both methods for construction site practice. - [Essential Construction Formulas for Tradespeople](https://rechenportal.de/en/345-methode/blog/construction-formulas-tradespeople): From Pythagoras to area calculation to material waste: the most important formulas every tradesperson should know on the construction site. ### FAQ - **What is the 3-4-5 method?**: The 3-4-5 method is a practical application of the Pythagorean theorem to check right angles on construction sites. If two sides of a triangle measure 3 and 4 units, the diagonal must be exactly 5 units for a perfect 90-degree angle. This works with any unit of measurement - meters, centimeters, or even feet. - **Why does the 3-4-5 method work?**: It is based on the Pythagorean theorem: a2 + b2 = c2. For the 3-4-5 triangle: 32 + 42 = 9 + 16 = 25 = 52. Any triangle with sides in this ratio necessarily has a right angle. This is mathematically proven and has been used in construction practice for thousands of years. - **How do I calculate a right triangle?**: There are two ways: (1) If you know two sides, calculate the third using the Pythagorean theorem: a2 + b2 = c2. (2) If you know one angle and one side, calculate the rest using sine, cosine and tangent. Our calculator does both automatically. - **What is the hypotenuse?**: The hypotenuse (c) is the longest side of a right triangle - it lies opposite the right angle (90 degrees). The two shorter sides are called catheti (a and b). The hypotenuse is always longer than either cathetus individually. - **How accurate is the 3-4-5 method?**: With careful measurement, accuracy is within 1-2 mm, which is more than sufficient for most construction work. The main error sources are tape sag over long distances and imprecise marking of measurement points. With a taut tape measure and precise markings, the method is surprisingly accurate. - **What tools do I need?**: Essentially just a tape measure (at least 5 meters long), chalk or a pencil for marking, and optionally a chalk line for long distances. No expensive special tools are required - that is one of the great advantages of the 3-4-5 method over laser angle finders. - **Are there alternatives to the 3-4-5 method?**: Laser angle finders are faster but significantly more expensive (starting at around EUR 100). A large carpenter's square works well for short distances up to about 1 meter. The 3-4-5 method is free, works at any scale, and requires no batteries or calibration. - **What does Pythagoras have to do with it?**: The ancient Greek mathematician Pythagoras proved that in any right triangle, the square of the hypotenuse equals the sum of the squares of the other two sides. The 3-4-5 triangle is the simplest integer example and therefore ideal for practical application on the construction site. - **When should I use a laser instead?**: Laser angle finders are worthwhile for repeated measurements at the same point, such as in series production or drywall with many walls. For one-off checks on the construction site, the 3-4-5 method is simpler, cheaper, and independent of batteries or technology. - **What are the most common mistakes with the 3-4-5 method?**: The four most common mistakes: (1) Not measuring exactly from the corner point, (2) tape sag over long distances, (3) imprecise marking of measurement points, and (4) confusing which side is A and which is B. Always check the starting point first and keep the tape measure taut. --- ## Material Needs Calculator (Materialbedarf-Rechner) - [Calculator](https://rechenportal.de/materialbedarf-rechner): Calculate tiles, paint, flooring & bulk materials - [English version](https://rechenportal.de/en/materialbedarf-rechner) ### Blog Articles - [Calculate Material Needs: The Complete Guide for Tiles, Paint, Flooring & More](https://rechenportal.de/en/materialbedarf-rechner/blog/material-needs-guide) *(pillar article)*: Everything about material needs: correctly calculating waste, creating shopping lists, and avoiding common mistakes - for tiles, paint, laminate, and bulk materials. - [Calculating Waste: Why 10% Is Often Not Enough](https://rechenportal.de/en/materialbedarf-rechner/blog/calculating-waste-material): Correctly calculating waste for tiles, laminate, and wallpaper. What factors affect material loss and how to avoid costly reorders. - [Tile Laying Patterns Compared: Waste & Aesthetics](https://rechenportal.de/en/materialbedarf-rechner/blog/tile-laying-patterns-compared): Straight, brick bond, diagonal, or herringbone? Each laying pattern has different impacts on waste, difficulty, and room appearance. A detailed comparison. - [Paint Coverage: How Much Paint per m2?](https://rechenportal.de/en/materialbedarf-rechner/blog/paint-coverage-per-sqm): Coverage comparison of emulsion, latex, and silicate paint. How surface, color, and number of coats affect consumption. - [Laminate vs Vinyl: Material Needs & Costs Compared](https://rechenportal.de/en/materialbedarf-rechner/blog/laminate-vinyl-comparison): Laminate and click vinyl compared head to head: material costs, installation effort, accessories, and durability. Which flooring suits your project? - [Gravel, Sand & Aggregate: Calculate Quantities Correctly](https://rechenportal.de/en/materialbedarf-rechner/blog/gravel-sand-aggregate-quantities): How much gravel, sand, or aggregate do you really need? Understanding density, compaction, and delivery quantities to determine the right order amount. ### FAQ - **How do I calculate material needs for my project?**: First measure the area (length x width) or room perimeter. Enter the dimensions in the appropriate tab of the calculator and select your material. The calculator automatically adds the necessary waste and creates a shopping list with the correct order quantity. - **How much waste should I plan for?**: As a rule of thumb: 10% waste for simple rectangular rooms with straight laying. For diagonal installation or complex room shapes, plan for 15%. For herringbone patterns or rooms with many angles, even 20% is advisable. The calculator accounts for waste automatically based on the laying pattern. - **Why do diagonal tiles need more material?**: With diagonal installation, tiles meet the walls at a 45-degree angle. This means tiles must be cut at an angle at every edge, and the offcuts are often too small for other positions. This results in 10-15% more material consumption compared to straight laying. - **How much wall paint per m2?**: Coverage depends heavily on the surface and paint type. On smooth plaster, about 100 ml of emulsion paint per m2 per coat is sufficient. On woodchip wallpaper, consumption rises to about 140 ml/m2. Always plan for at least two coats - for dark colors or color changes, even three. - **How heavy is 1m3 of gravel?**: One cubic meter of gravel weighs between 1,700 and 1,900 kg depending on grain size and moisture, averaging about 1,800 kg (1.8 tonnes). Sand is slightly lighter at about 1,600 kg/m3, while aggregate is similar at about 1,800 kg/m3. Note: with compaction you need 15-25% more volume. - **How many packs of laminate do I need?**: First calculate the room area (length x width) and add 10% waste. Then divide the total area by the pack coverage (listed on the packaging, usually about 2 m2). A 20 m2 room with 10% waste needs 22 m2, which equals about 11 packs at 2 m2 content. - **How to order the right amount at the hardware store?**: Use the calculator to determine the exact order quantity and print the shopping list. Always order slightly more than calculated - for tiles 1-2 extra boxes, for wallpaper one reserve roll. This protects against breakage, cutting errors, and future repairs. - **What does material delivery cost?**: For bulk materials like gravel or sand, expect about EUR 80 base fee plus about EUR 2.50 per kilometer distance. A truck holds 15-18 tonnes - smaller quantities are more expensive per tonne. Hardware stores often deliver tiles and flooring free within their area for orders above EUR 50-100. - **Can I return leftover material?**: Most hardware stores accept unbroken original packaging within 30 days. This does not apply to custom cuts or mixed paints. For tiles, it is still worth keeping 1-2 boxes as reserve - reordering later may result in a different batch with color variation. - **Is a professional worth it or is DIY enough?**: Simple painting and laminate installation are well suited for DIY - the material calculator helps with planning. Tiling requires more experience, especially diagonal patterns and wet areas. For bulk material projects like paving or drainage, a professional is often worthwhile as mistakes can be costly. --- ## Staircase Calculator (Treppen-Rechner) - [Calculator](https://rechenportal.de/treppen-rechner): Calculate rise, run & DIN 18065 compliance - [English version](https://rechenportal.de/en/staircase-calculator) ### Blog Articles - [Calculate Stairs: Rise, Run & Building Code Explained](https://rechenportal.de/en/staircase-calculator/blog/staircase-calculate-rise-run) *(pillar article)*: The complete guide to staircase calculation: step formula, optimal rise, DIN 18065 regulations and stair types compared. - [Step Formula: The Most Important Rule for Stairs](https://rechenportal.de/en/staircase-calculator/blog/step-formula-staircase): How the formula 2h + a = 63 cm works and why it determines the comfort and safety of your staircase. - [DIN 18065: Staircase Standards for Residential Buildings](https://rechenportal.de/en/staircase-calculator/blog/din-18065-staircase-standard): All DIN 18065 requirements for rise, run, width and handrails in residential and commercial staircases. - [Winding Staircase: Quarter-Turn and Half-Turn Calculation](https://rechenportal.de/en/staircase-calculator/blog/winding-staircase-calculator): Special considerations for winding staircases: walking line, tread widening and space requirements. - [Staircase Costs: How Much Does a New Staircase Cost?](https://rechenportal.de/en/staircase-calculator/blog/staircase-cost-price): Prices for wooden, concrete and steel staircases compared. Including installation costs and savings tips. - [Staircase Renovation: Costs and Options](https://rechenportal.de/en/staircase-calculator/blog/staircase-renovation-costs): Refurbish instead of rebuild: costs for sanding, varnishing, new treads and railings at a glance. ### FAQ - **How to calculate stairs?**: To calculate stairs, you need the floor-to-floor height and available run length. Divide the height by the optimal rise (about 18 cm) to get the step count. The run depth is calculated using the step formula: 2 x rise + run = 63 cm. - **What is the step formula?**: The step formula (Schrittmassregel) is: 2h + r = 63 cm, where h is the rise height and r is the run depth. The value 63 cm corresponds to the average stride length of an adult. An acceptable range is 59 to 65 cm. - **What is the maximum riser height?**: According to DIN 18065, the maximum riser height in residential buildings is 20 cm (minimum 14 cm). In public buildings, the maximum is 19 cm. For attic and secondary stairs, up to 21 cm is allowed. The ideal rise is about 17 to 18 cm. - **What is the minimum stair width?**: Minimum stair width depends on usage. Residential buildings with up to 2 units: at least 80 cm, with more units: 100 cm. Public buildings: at least 125 cm. A width of 90 cm is recommended for homes. - **What does DIN 18065 say?**: DIN 18065 is the German standard for building stairs. It specifies dimensions for rise (14-20 cm), run (23-37 cm), minimum widths, handrail heights and headroom. The standard distinguishes between residential, public and secondary stairs. - **How many steps do I need?**: The number of steps is the floor height divided by your desired rise height. For a floor height of 270 cm and a rise of 18 cm, you need 15 steps (270 / 18 = 15). - **What is the ideal slope angle?**: The ideal slope angle for residential stairs is between 30 and 37 degrees. Shallower stairs (under 30 degrees) use too much space, steeper stairs (over 38 degrees) become uncomfortable. Ladder stairs can be up to 45 degrees. - **How to calculate a spiral staircase?**: For spiral staircases, the run depth is measured at the walking line (about 2/3 of the tread width from the inner edge). The rise stays the same, but treads vary: narrower inside, wider outside. The minimum tread at the inner edge must be at least 10 cm. - **What is the difference between rise and run?**: The rise (h) is the vertical height of a single step - the distance between two tread surfaces. The run (r) is the horizontal depth of the tread surface - the distance between two step nosings. Together they determine the comfort of the staircase. - **How much space does a staircase need?**: Space requirements depend on the stair type. A straight staircase with 270 cm floor height needs about 3.5 to 4.5 m of run length. A quarter-turn saves about 1 m, while half-turn or spiral stairs need even less floor area. --- ## Usage Rights Calculator (Nutzungsrechte-Rechner) - [Calculator](https://rechenportal.de/nutzungsrechte-rechner): Calculate fair usage rights for your creative work — with factor-based calculation following AGD guidelines. - [English version](https://rechenportal.de/en/usage-rights-calculator) ### Blog Articles - [Calculating Usage Rights: The Complete Guide for Creatives in Germany](https://rechenportal.de/en/usage-rights-calculator/blog/usage-rights-guide) *(pillar article)*: Everything designers, illustrators and photographers need to know about usage rights — from factor calculation to invoicing. - [AGD Compensation Agreement: What Freelancers Need to Know](https://rechenportal.de/en/usage-rights-calculator/blog/agd-compensation-guidelines): The AGD compensation agreement is the most important guide for fair fees in the design industry. How to use it correctly. - [Usage Rights on Invoices: How to Word It Correctly](https://rechenportal.de/en/usage-rights-calculator/blog/usage-rights-invoicing): Usage rights must be correctly listed on invoices. Here you’ll find example wording and mandatory details. - [Buyout vs. Limited Usage Rights: When Each Makes Sense](https://rechenportal.de/en/usage-rights-calculator/blog/buyout-vs-limited-rights): Should you transfer all rights or limit them? A comparison with concrete calculations for creatives. ### FAQ - **What are usage rights?**: Usage rights define how extensively a client may use a creative work. As the creator, you retain copyright — you merely grant the client specific usage rights (e.g. limited territory, time period, or media). The more extensive the rights granted, the higher the licensing fee should be. - **How do I calculate usage rights as a freelancer?**: The most common method is factor multiplication: First calculate your design fee (hours × hourly rate), then multiply by factors for topic area, significance, territory, duration, usage type, and order type. The resulting total factor determines the licensing fee as a surcharge on the design fee. - **What does the AGD compensation agreement say?**: The AGD compensation agreement (VTV) is a recommendation from the Alliance of German Designers for fair fees in communication design. It defines hourly rate recommendations, usage rights factors, and calculation methods. While not legally binding, courts frequently reference it to determine fair compensation. - **What’s the difference between simple and exclusive usage rights?**: With simple usage rights (§31 Abs. 2 UrhG), the client can use the work, but you as the creator can also continue using it and license it to others. With exclusive usage rights (§31 Abs. 3 UrhG), the client gets sole usage rights — even you cannot use the work elsewhere. Exclusive rights should be compensated significantly higher. - **Do I need to list usage rights on invoices?**: Yes, it is strongly recommended to list usage rights separately on invoices. This creates transparency about the value of granted rights, documents the exact scope (territory, duration, type), and serves as evidence in later disputes. Design fee and licensing fee should appear as separate line items. - **What is a buyout and when is it worthwhile?**: A buyout means the complete transfer of all usage rights to the client — unlimited in time, territory, for all media, including editing rights. The factor is typically 3–6× the design fee. A buyout makes sense for clients who want to use the work comprehensively long-term, and for you when the surcharge compensates for lost future licensing income. - **How do I negotiate usage rights with clients?**: The key is transparency: Explain the factor calculation to the client and show how the price is derived. Always start by asking: “What exactly will you use the work for?” This naturally determines the factors. Offer different packages (e.g. “digital only” vs. “print + digital” vs. “buyout”) so the client understands the cost-benefit ratio. - **What factors influence licensing fee amounts?**: Six main factors determine the licensing fee: 1. Topic area (branding pays more than corporate communication). 2. Significance (main element vs. secondary). 3. Territory (local to worldwide). 4. Duration (single use to unlimited). 5. Usage type (restricted, unrestricted, editing rights). 6. Order type (follow-up, framework, single commission). The product of all factors gives the total factor applied to the design fee. --- ## Cost of Living Calculator (Lebenshaltungskosten-Rechner) - [Calculator](https://rechenportal.de/lebenshaltungskosten-rechner): Compare cost of living worldwide - [English version](https://rechenportal.de/en/cost-of-living-calculator) ### Blog Articles - [Cost of Living Worldwide: The Ultimate Comparison 2026](https://rechenportal.de/en/cost-of-living-calculator/blog/cost-of-living-worldwide-comparison) *(pillar article)*: Comprehensive comparison of living costs across 50+ countries -- from Europe to Southeast Asia. - [The 10 Cheapest Countries for German Expats](https://rechenportal.de/en/cost-of-living-calculator/blog/cheapest-countries-for-expats): Where you can live comfortably on a German budget. - [Cost of Living in Europe: Where Is Life Best?](https://rechenportal.de/en/cost-of-living-calculator/blog/cost-of-living-europe-comparison): All European countries in direct cost comparison. - [Moving to Portugal -- What Does Life Really Cost?](https://rechenportal.de/en/cost-of-living-calculator/blog/moving-to-portugal-costs): Detailed cost breakdown for living in Portugal. - [Cost of Living in Asia: Thailand, Vietnam, Bali Compared](https://rechenportal.de/en/cost-of-living-calculator/blog/cost-of-living-asia-comparison): The most popular Asian destinations for expats -- cost checked. - [Retiring Abroad -- These Are the Costs You'll Face](https://rechenportal.de/en/cost-of-living-calculator/blog/retirement-abroad-costs): What retirees need to consider when moving abroad. - [Remote Work Abroad -- Cost of Living for Digital Nomads](https://rechenportal.de/en/cost-of-living-calculator/blog/remote-work-abroad-costs): The best countries for remote workers by cost and quality of life. ### FAQ - **What is cost of living?**: Cost of living encompasses all regular expenses required for daily life. This includes rent, groceries, transportation, utilities (electricity, water, heating), healthcare, and leisure activities. The term describes how much money you need monthly to maintain your standard of living in a particular country or city. Our calculator compares these costs across six main categories and 55+ countries, giving you a realistic picture of the financial requirements at different locations. - **How accurate is this calculator?**: Our calculator is based on average values and index data that are regularly updated. The data comes from publicly accessible sources and international cost comparisons. Actual costs can vary significantly depending on city, neighborhood, and personal lifestyle. For example, living costs in Lisbon are considerably lower than in the tourist-heavy Algarve region. The calculator provides a solid orientation for planning but does not replace detailed local research. We recommend using the results as a starting point and supplementing them with local sources. - **What does each lifestyle tier include?**: The three lifestyle tiers reflect different standards of living: Budget means a frugal lifestyle with shared housing or a small studio, cooking at home, and public transport. Comfortable represents a private 1-2 bedroom apartment, occasional dining out, and a mix of public transport and occasional car use. Upscale includes a spacious apartment in a good location, regular dining out, a personal car, and higher-quality leisure activities. The multipliers are based on real price ranges and adjusted per country, so Budget in Thailand has different implications than Budget in Switzerland. - **How are costs calculated for couples and families?**: For couples, costs are not simply doubled but realistically scaled. Rent typically increases by 30-50% (larger apartment but shared space), groceries by about 70-80%, and transport often remains similar when shared. For families, additional costs per child are added: mainly groceries, healthcare, and possibly school fees or childcare. Utilities increase moderately with household size. The calculator uses country-specific household multipliers that account for these economies of scale, rather than simply multiplying per person. - **Which country is cheapest for German expats?**: The cheapest countries for German expats are mainly in Southeast Asia and Eastern Europe. Thailand, Vietnam, and Indonesia offer living costs 50-70% below German levels. In Europe, Portugal, Hungary, and Bulgaria are particularly affordable. However, beyond pure costs, you should also consider factors like visa requirements, healthcare quality, language barriers, and quality of life. A country with very low costs can quickly become more expensive than expected due to expensive international schools or private health insurance. Use our calculator to explore different scenarios. - **What costs are included in each category?**: Rent covers the monthly apartment rent for housing matching the selected lifestyle tier. Groceries include supermarket shopping and at higher tiers also restaurant visits. Transport covers public transit, taxi rides, and at the upscale tier a personal car. Utilities include electricity, water, gas, heating, and internet. Healthcare covers the average monthly costs for health insurance and co-payments in each country. Entertainment covers leisure, sports, culture, and going out. Not included are one-time moving costs, visa fees, or taxes. - **How often is the data updated?**: The cost data in our calculator is reviewed quarterly and updated as needed. We take into account current inflation rates, exchange rate fluctuations, and regional market developments. Especially for countries with high inflation (e.g., Turkey, Argentina), actual prices may deviate more between update cycles. The date of the last update is shown at the bottom of the results page. Exchange rates are applied at the time of calculation and can change daily -- for binding financial planning, we recommend checking current exchange rates separately. - **Can I use this calculator for visa or relocation planning?**: The calculator is excellent as an initial orientation point for financial planning of a stay abroad. It shows you how much budget you should plan for different countries. For visa applications, many countries require proof of sufficient financial means -- our calculator results can help you estimate the required amounts. However, note that visa authorities set their own minimum amounts that may differ from our averages. For concrete relocation planning, we recommend cross-referencing the results with local expat forums and current experience reports. - **Why is Germany the baseline?**: Germany serves as the reference country because our calculator is primarily designed for German-speaking users planning emigration or a stay abroad. By comparing directly with Germany, you can immediately see whether a country is cheaper or more expensive than your current living situation. Germany also works well as a benchmark because it falls in the European middle range for living costs -- neither extremely cheap like Bulgaria nor extremely expensive like Switzerland. All percentage figures (e.g., '35% cheaper') refer to the direct comparison with average German living costs. - **What about purchasing power differences?**: Purchasing power and cost of living are closely related but not identical. Our calculator shows the absolute monthly costs in the selected currency -- meaning what you actually need to spend. Purchasing power, on the other hand, describes how much you get for your money in each country. For example, in Thailand absolute costs are lower, and the purchasing power of a euro is particularly high because you get more goods and services for less money. Note that imported goods (electronics, Western brand products) often cost similarly worldwide, while local products and services account for the biggest price differences. --- ## Slope Calculator (Gefälle-Rechner) - [Calculator](https://rechenportal.de/gefaelle-rechner): Calculate slope with DIN standard compliance - [English version](https://rechenportal.de/en/slope-calculator) ### Blog Articles - [Calculate Slope: Formula, Standards and Practical Guide](https://rechenportal.de/en/slope-calculator/blog/slope-calculator-formula-standards) *(pillar article)*: Everything about slope calculation: the formula, DIN standards for terraces, showers and pipes, and how to measure correctly with a spirit level. - [Terrace Slope: How Much Gradient Does Your Patio Need?](https://rechenportal.de/en/slope-calculator/blog/terrace-slope-guide): The correct slope for terraces and balconies per DIN 18195 — with practical drainage tips. - [Shower Floor Slope: Standards for Walk-in Showers](https://rechenportal.de/en/slope-calculator/blog/shower-floor-slope-guide): The correct slope for walk-in showers per DIN 18534 — ensuring reliable water drainage. - [Drainage Pipe Slope: DN100 and Other Pipe Diameters](https://rechenportal.de/en/slope-calculator/blog/drainage-pipe-slope-guide): Minimum slope for drainage pipes per DIN EN 12056 — from DN50 to DN300 with calculation examples. - [Wheelchair Ramp: Maximum Gradient per DIN 18040](https://rechenportal.de/en/slope-calculator/blog/wheelchair-ramp-slope-guide): What gradient is permitted for wheelchair ramps? DIN 18040 requirements, lengths and intermediate landings explained. - [Measuring Slope with a Spirit Level: Step by Step](https://rechenportal.de/en/slope-calculator/blog/measuring-slope-spirit-level): How to correctly measure slope with a spirit level — including the conversion formula for mm readings. ### FAQ - **How do you calculate slope in percent?**: Slope in percent = (height difference / horizontal distance) × 100. Example: With 8 cm height difference over 4 m distance, the slope is (8 / 400) × 100 = 2%. Both values must be in the same unit (here cm). - **What is the difference between slope in percent and degrees?**: Slope in percent is the ratio of height difference to horizontal distance × 100. Degrees measure the actual angle between the inclined surface and the horizontal. The conversion is: angle = arctan(slope% / 100). A 2% slope equals only about 1.15° — for small slopes, percent and degree values are nearly identical. - **How much slope does a terrace need?**: For terraces and balconies, DIN 18195 recommends a slope of 1.5% to 2.5% — ideally 2%. This means: Over 1 meter length, the surface drops 2 cm. The slope should always direct away from the building so that rainwater drains reliably and no standing water forms. - **What is the minimum slope for a DN100 drainage pipe?**: For a drainage pipe with nominal diameter DN100 (the standard in households), the minimum slope is 1.5% per DIN EN 12056. This means: Over 1 meter of pipe length, the pipe must drop at least 1.5 cm. Smaller pipes (DN50) require at least 2.5%, larger pipes (DN200) only 0.5%. - **How do you measure slope with a spirit level?**: Place a 2 m spirit level (or straightedge) on the surface. Lift one end until the bubble is centered. Measure the gap between the lifted end and the surface in mm. At 2% slope, the gap is exactly 40 mm over 2 m. Formula: Slope % = gap (mm) / length (mm) × 100. - **What does a slope of 1:50 mean?**: A slope of 1:50 means the surface drops 1 unit over 50 units of length. This equals 2% slope (1/50 × 100 = 2%). In other words: over 1 meter, the surface drops 2 cm. This notation is commonly used in construction plans. - **Which DIN standards apply to slopes?**: Key DIN standards: DIN 18195 (terraces/balconies: 1.5-2.5%), DIN 18534 (walk-in showers: 1.5-2%), DIN EN 12056 (drainage pipes: depends on diameter), DIN 4095 (drainage: 0.5-2%), DIN 18040-1 (wheelchair ramps: max. 6%), DIN 18531 (flat roofs: 2-5%). - **How steep can a wheelchair ramp be?**: Per DIN 18040-1, a wheelchair ramp may have a maximum gradient of 6%. The ramp must not exceed 6 m in length, after which an intermediate landing of at least 1.50 m is required. Minimum width is 1.20 m. Stricter requirements may apply outdoors (max. 4%). - **How do you calculate the height difference from the slope?**: Height difference (cm) = slope (%) / 100 × distance (m) × 100. Example: At 2% slope over 5 m: 2/100 × 5 × 100 = 10 cm height difference. Our calculator has a dedicated mode for this. - **What happens if the slope is too low?**: With insufficient slope, water cannot drain properly. On terraces, puddles form leading to frost damage and algae growth. In pipes, solids accumulate causing blockages. On flat roofs, standing water can damage the waterproofing. Insufficient slope is one of the most common causes of building damage. --- ## Roof Calculator (Dachrechner) - [Calculator](https://rechenportal.de/dachrechner): Calculate roof area, rafter length & snow load - [English version](https://rechenportal.de/en/roof-calculator) ### Blog Articles - [Calculate Roof Pitch: Rafter Length, Roof Area & Snow Load](https://rechenportal.de/en/roof-calculator/blog/roof-pitch-calculator-rafter-length) *(pillar article)*: Everything about roof pitch: understand degrees, percent and ratio, calculate rafter length and ridge height, determine roof area for different roof types. - [Gable Roof Pitch: What Angle Is Ideal?](https://rechenportal.de/en/roof-calculator/blog/gable-roof-pitch-angle): What roof pitch is optimal for a gable roof? Minimum pitch, material suitability and regional requirements at a glance. - [Snow Load Zones Germany: Map & Calculation](https://rechenportal.de/en/roof-calculator/blog/snow-load-zones-germany): Which snow load zone is your property in? Calculation per DIN EN 1991-1-3 with formulas and practical examples. - [Lean-To Roof: Pitch, Area & Drainage](https://rechenportal.de/en/roof-calculator/blog/lean-to-roof-pitch-area): Lean-to roof calculation: correctly determine roof pitch, rafter length and roof area for the single-slope roof. - [Roof Tiles or Metal? Costs & Minimum Pitch](https://rechenportal.de/en/roof-calculator/blog/roof-tiles-metal-costs-pitch): Comparison of roofing materials: clay tiles, concrete tiles, slate, standing seam metal and asphalt shingles compared by cost and suitability. - [Calculate Rafter Length: Formula with Overhang](https://rechenportal.de/en/roof-calculator/blog/calculate-rafter-length-formula): How to calculate rafter length: Pythagorean formula, effect of roof overhang and practical calculation examples. ### FAQ - **What is roof pitch and how is it expressed?**: Roof pitch describes the angle of the roof surface relative to the horizontal. It is expressed in degrees, percent or as a ratio. 45 degrees equals 100% slope (ratio 1:1). In Germany, pitches between 20 and 45 degrees are common. - **How do you calculate rafter length?**: Rafter length is calculated from half the building width (for gable roofs) and the pitch angle: rafter length = half width / cos(angle). With overhang: rafter length = (half width + overhang) / cos(angle). For a 10 m wide building at 35 degrees with 50 cm overhang: (5 + 0.5) / cos(35) = 6.71 m. - **What formula is used for roof area?**: For a gable roof: roof area = 2 x rafter length x (building length + 2 x overhang). The rafter length includes the eave overhang. Roof area is always larger than floor area since the sloped surface is longer than the horizontal projection. - **Which snow load zone is my location in?**: Germany is divided into 5 snow load zones (Zone 1 to 3). Northern German lowlands are typically in Zone 1, central mountain ranges in Zone 2, Alpine foothills in Zone 2a or 3. The exact assignment follows DIN EN 1991-1-3 Annex NA. Your local building authority can provide guidance. - **What minimum pitch do roof tiles need?**: Clay and concrete roof tiles require a minimum pitch of 22 degrees. Slate needs 25 degrees, asphalt shingles 15 degrees, standing seam metal just 7 degrees and trapezoidal metal 5 degrees. EPDM membranes can be used from 2 degrees. Below the prescribed minimum, leaks may occur. - **What is the difference between a gable and hip roof?**: In a gable roof, the roof surfaces end vertically at the gable sides, creating triangular gable walls. In a hip roof, the gable sides are also sloped (hipped), so no vertical gable walls exist. A hip roof therefore has more roof area but less wall area and is more wind-resistant. - **What purpose does a roof overhang serve?**: Roof overhang protects the facade and base area from driving rain and direct sunlight. Typical overhangs are 30 to 80 cm. A larger overhang provides more protection but requires longer rafters. On the gable side, the overhang is called the rake. - **At what pitch is a roof considered flat?**: A roof is considered flat at a pitch below 5 degrees (approx. 8.7%). Most flat roofs have a pitch of 2 to 3 degrees for drainage. Between 5 and 20 degrees, it is called a low-slope roof. - **How do I measure the pitch of an existing roof?**: Easiest with a digital spirit level on a rafter or roof tile. Alternatively, measure the horizontal run and the rise in the attic and calculate the angle: arctan(rise / run). Smartphone apps with inclinometers also work. - **How much does a new roof covering cost per m2?**: Costs vary greatly by material: concrete tiles 20-35 EUR/sqm, clay tiles 25-50 EUR/sqm, asphalt shingles 15-30 EUR/sqm, standing seam metal 50-90 EUR/sqm, slate 80-140 EUR/sqm. These prices include material and installation but not battens and underlay. --- ## Mixing Ratio Calculator (Mischungsrechner) - [Calculator](https://rechenportal.de/mischungsrechner): Concrete, mortar, epoxy & more — exact mixing ratios - [English version](https://rechenportal.de/en/mixing-calculator) ### Blog Articles - [Calculate Mixing Ratios: Concrete, Mortar, Epoxy, Primer & More](https://rechenportal.de/en/mixing-calculator/blog/mixing-ratio-calculator-concrete-mortar-epoxy) *(pillar article)*: Complete guide to mixing ratios for all common construction materials: concrete, mortar, epoxy resin, primer, filler compound and tile adhesive. - [Concrete Classes Overview: C20/25, C25/30 & More](https://rechenportal.de/en/mixing-calculator/blog/concrete-classes-overview-c20-c25): All concrete classes from C12/15 to C30/37 explained: mixing ratios, cement requirements and typical applications at a glance. - [Epoxy Mixing Ratio: How to Mix Without Mistakes](https://rechenportal.de/en/mixing-calculator/blog/epoxy-mixing-ratio-guide): Mix epoxy resin correctly: ratios by weight and volume, avoid common mistakes and mind the pot life. - [Applying Primer: Which Type for Which Surface?](https://rechenportal.de/en/mixing-calculator/blog/primer-type-surface-guide): Deep primer, bonding agent or concrete contact? Which primer is right for drywall, concrete, plaster and other surfaces. - [Tile Adhesive Consumption: How Many kg per m2?](https://rechenportal.de/en/mixing-calculator/blog/tile-adhesive-consumption-kg-per-sqm): Calculate tile adhesive consumption per sqm by trowel notch, tile size and adhesive type. With table and practical tips. - [Calculate Leveling Compound: Level Your Floor Step by Step](https://rechenportal.de/en/mixing-calculator/blog/leveling-compound-calculate-floor): Calculate and apply leveling compound correctly: consumption per sqm, subfloor preparation and step-by-step guide. ### FAQ - **What is the mixing ratio for C20/25 concrete?**: For C20/25 concrete (standard), the mixing ratio is 1:3:5 (cement : sand : gravel). Per cubic meter, approximately 300 kg cement, 640 kg sand (0-4mm) and 1,180 kg gravel (4-16mm) are needed. The water-cement ratio is 0.55, meaning about 165 liters of water per cubic meter. - **How much cement do I need per cubic meter of concrete?**: Cement requirements depend on the concrete class: C12/15 (lean concrete) needs approx. 250 kg/m3, C20/25 (standard) approx. 300 kg/m3, C25/30 (foundation) approx. 350 kg/m3 and C30/37 (heavy-duty) approx. 400 kg/m3. That is 10 to 16 bags of cement (25 kg) per cubic meter. - **What is the correct mixing ratio for epoxy resin?**: The epoxy mixing ratio depends on the product. Common ratios are 2:1 (standard, by volume), 3:1 (slow curing), 5:1 (coatings) and 100:45 (by weight, EU standard). The exact ratio is always printed on the manufacturer packaging. Deviations lead to poor curing. - **How do I dilute deep primer correctly?**: Deep primer is diluted based on the surface: Apply undiluted on normally absorbent surfaces (coverage approx. 6 sqm/L). On highly absorbent surfaces, first apply diluted 1:1 with water, then roll undiluted. Use undiluted on drywall (approx. 7 sqm/L). - **How much tile adhesive per m2?**: Consumption depends on the trowel notch: 6mm notch approx. 2.5 kg/sqm, 8mm approx. 3.5 kg/sqm, 10mm approx. 4.5 kg/sqm, 12mm approx. 5.5 kg/sqm. For large format tiles (>60cm) using buttering-floating method, add approx. 50%. A 25 kg bag covers approx. 5-7 sqm with 8mm notch. - **How do I calculate grout needs?**: The formula is: kg/sqm = (tile length + tile width) / (length x width) x joint width x tile thickness x density. Example: 60x60cm tile, 3mm joint, 10mm thick: (0.6+0.6)/(0.6x0.6) x 0.003 x 0.01 x 1600 = 0.27 kg/sqm. For 15 sqm, approx. 4 kg of grout is needed. - **How thick should leveling compound be applied?**: Minimum thickness is usually 1-3mm, maximum per layer is 10mm. For leveling above 10mm, work in multiple layers. Consumption is approx. 1.5 kg/sqm per mm of thickness. With underfloor heating, plan at least 45mm of coverage. - **What is the pot life of epoxy resin?**: Pot life (working time) for most epoxy resins is between 20 and 45 minutes. Coatings and crack injections have approx. 25 minutes, casting resins approx. 45 minutes. After pot life expires, the mixture becomes viscous and unworkable. Larger quantities increase temperature and shorten pot life. - **Which filler for which purpose?**: Gypsum filler: Interiors, joints, holes (4h drying). Cement filler: Exterior and wet rooms (24h). Fine filler: Finishing before painting (2h). Repair filler: Quick hole filling (1h). 2K filler: Wood and metal, extremely hard (30 min). - **How many bags of premix concrete do I need for 1 m3?**: For 1 cubic meter of concrete, approximately 67 bags of premix concrete (40 kg each) are needed (one 40 kg bag yields approx. 0.015 m3). That equals about 2,680 kg total weight. By comparison: self-mixing with cement, sand and gravel costs about half, but requires more effort and a concrete mixer. --- ## Fuel Cost Calculator (Spritkosten-Rechner) - [Calculator](https://rechenportal.de/spritkosten-rechner): Calculate fuel costs per trip and annually - [English version](https://rechenportal.de/en/fuel-cost-calculator) ### Blog Articles - [Fuel Cost Calculation 2026: Formulas, Tips & Drivetrain Comparison](https://rechenportal.de/en/fuel-cost-calculator/blog/fuel-costs-calculation-2026) *(pillar article)*: How to calculate your fuel costs exactly, which drivetrain is cheapest, and how the CO2 price affects your fuel bill. - [Petrol vs. Diesel: Which Fuel Is Cheaper?](https://rechenportal.de/en/fuel-cost-calculator/blog/petrol-vs-diesel-costs): Petrol or diesel -- we calculate from which mileage diesel actually pays off and how the price difference affects your costs. - [Electric Car vs. Combustion: Electricity Costs vs. Fuel Costs](https://rechenportal.de/en/fuel-cost-calculator/blog/electric-car-electricity-vs-fuel): What does an electric car cost compared to a combustion engine? We compare electricity and fuel costs per km, month and year. - [Save Fuel: 10 Tips for Lower Consumption](https://rechenportal.de/en/fuel-cost-calculator/blog/save-fuel-10-tips): With these 10 proven tips, you can reduce your fuel consumption by up to 20% -- without sacrificing comfort. - [CO₂ Price: How It Makes Your Petrol and Diesel More Expensive](https://rechenportal.de/en/fuel-cost-calculator/blog/co2-price-impact-fuel-station): The CO2 price rises annually -- we explain how it affects the price per liter and what it means for your fuel costs. - [LPG & CNG: Are Alternative Fuels Worth It?](https://rechenportal.de/en/fuel-cost-calculator/blog/lpg-cng-alternative-fuels): LPG and CNG promise lower per-kilometer costs. We calculate whether conversion or a new purchase is really worth it. ### FAQ - **How do I calculate my fuel costs per trip?**: Multiply your consumption (e.g., 7 L/100km) by the distance and fuel price. Formula: (Consumption / 100) x Distance x Price. For 7 L/100km, 200 km and EUR 1.75/L: 0.07 x 200 x 1.75 = EUR 24.50. Our calculator does this automatically and also shows CO2 emissions and comparison options. - **Which fuel type is cheapest per kilometer?**: Electric vehicles have the lowest energy costs per kilometer, especially when charging at home. Comparison: petrol costs about 10-13 cents/km, diesel 8-10 cents/km, electricity (home charging) only 5-7 cents/km. LPG and CNG fall in between. However, higher purchase costs and charging infrastructure must be considered. - **How much do I save with an electric car on fuel costs?**: At 15,000 km/year and average prices, an electric car saves about EUR 1,000-1,300 per year in energy costs compared to a petrol car. Compared to diesel, savings are about EUR 600-900. Savings depend heavily on electricity price -- home charging saves the most, while public fast chargers are significantly more expensive. - **What is the average fuel consumption in Germany?**: The average for passenger cars is about 7.5 L/100km for petrol and 6.0 L/100km for diesel. Hybrids consume about 5-6 L/100km, electric cars about 18 kWh/100km. Actual consumption depends heavily on driving style, route (city/highway), vehicle size, and load. - **How will fuel prices develop in 2026?**: Fuel prices will continue to rise in the medium term due to the increasing CO2 price (since 2021). The CO2 levy increases fossil fuel costs by about 3-5 cents per liter annually. Currently (2026), petrol averages EUR 1.70-1.80/L, diesel EUR 1.60-1.70/L. Geopolitical factors and oil market prices can cause additional fluctuations. - **How can I reduce my fuel costs?**: Key saving tips: Drive anticipatively and maintain steady speed (saves up to 20%). Check tire pressure regularly (0.5 bar too low = about 5% more consumption). Remove unnecessary weight and roof racks. Shift up early (at 2,000 RPM). Use air conditioning consciously. Avoid short trips or use a bicycle. Compare fuel prices -- up to 15 cents/L difference depending on time of day. - **How much does a full tank cost currently?**: A full 50-liter petrol tank currently costs about EUR 85-90. For a 55-liter diesel tank, it is about EUR 90-95. A full charge of an EV with a 60 kWh battery costs about EUR 21 at home (EUR 0.35/kWh), or EUR 30-45 at public chargers (EUR 0.50-0.75/kWh). - **Is an LPG or CNG conversion worth it?**: An LPG conversion costs EUR 1,500-3,000 and saves about 40-50% of fuel costs compared to petrol. At 15,000 km/year, the investment pays off in 2-3 years. CNG vehicles from the factory are cheaper, but the filling station network is thinner. Note: LPG consumption is about 15-20% higher than petrol, while CNG efficiency is comparable. - **How much CO2 does my car produce?**: An average petrol car with 7.5 L/100km emits about 173 g CO2/km. A diesel with 6 L/100km produces about 159 g CO2/km. An electric car causes about 72 g CO2/km in the German electricity mix. Per year (15,000 km): petrol about 2,600 kg, diesel about 2,385 kg, electric about 1,080 kg CO2. For comparison: trains only produce about 29 g CO2/km. - **Will fuel costs continue to rise in the coming years?**: Yes, most likely. The CO2 price in Germany is scheduled to increase further, raising fossil fuel costs by several cents annually. Oil market prices and geopolitical factors also have an impact. Experts expect an annual price increase of about 3-5% for fossil fuels. Electricity for EVs, on the other hand, could remain more stable in the long term due to the expansion of renewable energy. --- ## Inflation Calculator (Inflationsrechner) - [Calculator](https://rechenportal.de/inflationsrechner): Calculate purchasing power loss and price trends - [English version](https://rechenportal.de/en/inflation-calculator) ### Blog Articles - [Inflation in Germany Since 1950 -- The Complete History](https://rechenportal.de/en/inflation-calculator/blog/inflation-germany-since-1950) *(pillar article)*: From the economic miracle through the oil crisis to the 2022 energy crisis -- how prices developed over 75 years. - [Purchasing Power Loss Explained -- How Your Money Melts](https://rechenportal.de/en/inflation-calculator/blog/purchasing-power-loss-explained): What purchasing power loss means and how to calculate it for your savings. - [Protecting Money from Inflation -- 7 Strategies That Really Work](https://rechenportal.de/en/inflation-calculator/blog/inflation-protection-strategies): From stocks to real estate to inflation bonds -- how to protect your wealth. - [Pension and Inflation -- Why EUR 1,500 Won't Be Enough in 20 Years](https://rechenportal.de/en/inflation-calculator/blog/pension-and-inflation): How inflation erodes your pension and what you can do about it. - [What Happened to 100 D-Marks -- The Euro Purchasing Power Comparison](https://rechenportal.de/en/inflation-calculator/blog/d-mark-euro-purchasing-power): Nostalgia vs. reality: How purchasing power changed since the euro introduction. - [Perceived vs. Measured Inflation -- Why Everything Seems More Expensive](https://rechenportal.de/en/inflation-calculator/blog/perceived-vs-measured-inflation): Why perceived inflation is often higher than the official rate. - [Eurozone Inflation -- Where Is It Rising Fastest?](https://rechenportal.de/en/inflation-calculator/blog/eurozone-inflation-comparison): Inflation rates across the eurozone compared and what it means for Germany. - [The Consumer Basket -- How Inflation Is Really Measured](https://rechenportal.de/en/inflation-calculator/blog/consumer-basket-inflation-explained): How the Federal Statistical Office calculates the consumer price index. ### FAQ - **What is inflation?**: Inflation describes the general increase in the price level over a specific period. When inflation rises, you can buy less with the same amount of money -- your purchasing power decreases. In Germany, inflation is measured using the Consumer Price Index (CPI), which the Federal Statistical Office publishes monthly. The CPI is based on a basket of around 700 goods and services that represent the typical consumption of a German household. - **How is the Consumer Price Index (CPI) calculated?**: The CPI is based on a basket that represents the average consumption of private households. Around 700 goods and services are tracked, from groceries to rents to leisure spending. Each item is weighted according to its share of total expenditure. The weighting is regularly updated (most recently 2020 = base year 100). Prices are collected monthly from around 35,000 reporting points. - **What does purchasing power loss mean?**: Purchasing power loss means your money becomes worth less over time. If inflation is 3% per year, for example, you can only buy goods worth about EUR 970 (measured at today's price level) with EUR 1,000 after one year. Over longer periods, this effect accumulates significantly: at 3% inflation, money loses about half its purchasing power in 25 years. - **Why does perceived inflation often feel higher than the official rate?**: There are several reasons: First, we notice price increases more for products we buy frequently (groceries, fuel) than for products we rarely buy (electronics, which often get cheaper). Second, the CPI basket changes regularly -- new products are added, others removed. Third, the CPI captures quality improvements: if a laptop costs EUR 800 today but is twice as powerful as 5 years ago, the quality-adjusted price has fallen even though the nominal price stayed the same. - **How does inflation affect my pension?**: The statutory pension in Germany is regularly adjusted, but not directly to inflation -- instead to wage development. During periods of high inflation, pension adjustments can lag behind price developments. Our pension check shows you how the purchasing power of your pension develops under different inflation scenarios. At 3% inflation and 1.5% pension increases, your pension loses about 25% of its purchasing power in 20 years. - **What is the difference between inflation and deflation?**: Inflation is a general price increase, deflation a general price decrease. While inflation reduces the purchasing power of money, deflation theoretically increases it. Deflation sounds positive at first, but is economically dangerous: if consumers expect prices to keep falling, they postpone purchases -- the economy shrinks, companies lay off workers, a downward spiral can develop. The ECB therefore aims for inflation of just under 2%, which is considered a sign of a healthy economy. - **How accurate are the CPI data in this calculator?**: Our calculator uses official Consumer Price Index data from the Federal Statistical Office (Destatis). For years from 1991 onward, we use the all-German index; for earlier years, the West German index. The category multipliers are simplified approximations based on historical averages. For precise analyses of individual product groups, we recommend the GENESIS database from Destatis. - **What was the highest inflation in Germany?**: The hyperinflation of 1923 was the most extreme episode: in November 1923, a loaf of bread cost 233 billion marks. In the post-war period (from 1949), the highest annual inflation was just under 8% in 1951. More recently, inflation reached 10.4% in October 2022 -- the highest since reunification -- driven by the energy crisis and pandemic aftereffects. Our calculator covers the period from 1950 onward. - **How can I hedge against inflation?**: There are several proven strategies: Real assets like real estate and stocks historically offer the best inflation protection. Broadly diversified equity ETFs have significantly outpaced inflation long-term. Inflation-linked bonds adjust their payouts to inflation. Gold is considered traditional inflation protection but provides no ongoing returns. Fixed-rate savings products (savings accounts, fixed deposits) lose real value during high inflation -- the return must exceed the inflation rate. - **How did the euro affect prices?**: The euro introduction in 2002 led to a widespread perception of price increases, earning the nickname 'Teuro' (expensive euro). Official data shows overall inflation in 2002 was a moderate 1.4%. However, prices in certain sectors (restaurants, services) rose noticeably, as many businesses used the conversion to round up. The official exchange rate was 1 EUR = 1.95583 DM. Use our D-Mark converter to calculate the actual purchasing power development since the changeover. - **What do the category multipliers mean?**: Not all prices rise at the same rate. Food and housing/energy have historically risen faster than average (multipliers 1.15 and 1.25 respectively). Healthcare and leisure have risen less (0.90 and 0.85). With the category selector, you can see how purchasing power has developed differently across life areas. Example: EUR 1,000 from 2000 for food has a different purchasing power today than EUR 1,000 for leisure spending. - **Why is 2% inflation the ECB's target?**: The European Central Bank (ECB) aims for a medium-term inflation rate of 2%. This target is a compromise: too-low inflation (or deflation) inhibits economic growth because consumers and businesses postpone investments. Too-high inflation devalues savings and creates uncertainty. The 2% provides a buffer against deflation and allows room for relative price adjustments between different economic sectors. Since 2021, the ECB has pursued a symmetric 2% target, meaning deviations above and below are evaluated equally. --- ## Tax Refund Calculator (Steuererstattung-Rechner) - [Calculator](https://rechenportal.de/steuererstattung-rechner): Calculate your tax refund quickly and easily - [English version](https://rechenportal.de/en/tax-refund-calculator) ### Blog Articles - [Maximize Your Tax Refund: The Complete 2026 Guide](https://rechenportal.de/en/tax-refund-calculator/blog/maximize-tax-refund-2026) *(pillar article)*: All deductions, flat rates and tips for the maximum tax refund. Explained step by step. - [Commuter Allowance 2026: Calculation, Increase and Tips](https://rechenportal.de/en/tax-refund-calculator/blog/commuter-allowance-calculation-tips): How to correctly calculate the commuter allowance and get the maximum refund. - [Home Office Tax Deduction: How to Claim It Correctly](https://rechenportal.de/en/tax-refund-calculator/blog/home-office-tax-deduction): Everything about the home office deduction 2026: requirements, calculation and combination with commuter allowance. - [Work Expenses You Can Deduct: The Complete 2026 Checklist](https://rechenportal.de/en/tax-refund-calculator/blog/work-expenses-deduction-list): From work equipment to second home: all work-related expenses you can deduct. - [How to Deduct Craftsman and Household Service Costs](https://rechenportal.de/en/tax-refund-calculator/blog/craftsman-household-services-deduction): Direct tax savings through craftsmen and household help. What counts, what doesn't, and how to do it right. ### FAQ - **What is the average tax refund in Germany?**: The average tax refund is around EUR 1,063. Employees with commuter allowance, home office costs and work-related expenses above the flat rate of EUR 1,230 often receive significantly more. - **Is it worth filing a tax return?**: In most cases, yes. As soon as your work-related expenses exceed the flat rate of EUR 1,230, you get money back. Commuters, home office workers and parents almost always benefit. - **What is the commuter allowance and how is it calculated?**: Since 2026 the commuter allowance is a flat EUR 0.38 per kilometer from the first kilometer (one-way distance). It applies for each working day, regardless of transport mode. At 25 km and 220 working days, this amounts to EUR 2,090. - **How does the home office deduction work?**: You can deduct EUR 6 per home office day, up to 210 days (EUR 1,260) per year. The deduction applies even without a separate home office room. It is offset against the commuter allowance -- you cannot claim both for the same day. - **What are work-related expenses and when should I itemize?**: Work-related expenses include everything related to your job: commuting costs, work equipment, training, professional literature, work clothing. The flat rate is EUR 1,230. Once your actual costs exceed this, itemizing pays off. - **Which craftsman costs can I deduct?**: You can deduct 20% of labor costs (not material costs) for craftsmen, up to EUR 1,200 per year. This includes renovation, repairs, maintenance -- all in your own home. The invoice must be paid by bank transfer. - **What tax benefits do Riester and Ruerup pensions offer?**: Riester contributions are deductible up to EUR 2,100 as special expenses. Ruerup/basic pension contributions are fully deductible since 2023. Both reduce your taxable income and increase your refund. - **When is the deadline for filing a tax return?**: For tax year 2025, the deadline is July 31, 2026 (with tax advisor: February 28, 2027). A voluntary return can be filed retroactively for up to 4 years. - **What is the reasonable personal burden for medical expenses?**: Medical expenses are only deductible above the reasonable personal burden, which is 1-7% of total income depending on your situation. For a single person with EUR 45,000 income, the threshold is about EUR 2,700. - **How accurate is this calculator?**: The calculator provides a good estimate based on current 2026 tax formulas. Deviations may occur due to special circumstances (e.g. side income, capital gains, foreign income). For exact calculations, we recommend ELSTER or a tax advisor. --- ## Calorie Calculator (Kalorienrechner) - [Calculator](https://rechenportal.de/kalorienrechner): Calculate your calorie needs with macro split - [English version](https://rechenportal.de/en/calorie-calculator) ### Blog Articles - [How to Calculate Your Calorie Needs: Complete Guide 2026](https://rechenportal.de/en/calorie-calculator/blog/calorie-needs-calculation-guide) *(pillar article)*: The comprehensive guide to calculating your calorie needs: BMR formulas compared, PAL factors, macro distribution, and individual adjustments. - [BMR Formulas Compared: Mifflin-St Jeor vs. Harris-Benedict vs. Katch-McArdle](https://rechenportal.de/en/calorie-calculator/blog/bmr-formulas-comparison): Which BMR formula is the most accurate? We compare the three main methods with calculation examples. - [How to Calculate a Calorie Deficit Correctly for Sustainable Weight Loss](https://rechenportal.de/en/calorie-calculator/blog/calorie-deficit-calculate-correctly): The optimal calorie deficit size, common mistakes, and why you should never eat below your BMR. - [Macronutrients Explained: How to Split Protein, Fat, and Carbs](https://rechenportal.de/en/calorie-calculator/blog/macronutrients-explained): Why macro distribution matters as much as total calories, and how to find the optimal split for your goal. - [Calorie Needs and Age: How Your Metabolism Changes Over Time](https://rechenportal.de/en/calorie-calculator/blog/calorie-needs-age-metabolism): Why you need fewer calories at 50 than at 25 and what you can do about metabolic decline. - [10,000 Steps a Day: How Many Calories You Actually Burn](https://rechenportal.de/en/calorie-calculator/blog/10000-steps-calories-burned): Is the 10,000-step rule valid? We calculate how many calories you burn per step and when it actually makes a difference. ### FAQ - **How do I calculate my calorie needs?**: Your calorie needs are calculated in two steps: First, your Basal Metabolic Rate (BMR) is determined — the calories your body burns at rest. Then, this is multiplied by an activity factor (PAL) to get your Total Daily Energy Expenditure (TDEE). Our calculator uses the Mifflin-St Jeor formula by default and optionally the Katch-McArdle formula if you know your body fat percentage. - **What is the difference between BMR and TDEE?**: BMR (Basal Metabolic Rate) is the energy your body needs at complete rest to maintain vital functions like breathing, heartbeat, and cell regeneration. TDEE (Total Daily Energy Expenditure) additionally includes calories burned through movement, exercise, digestion (thermic effect of food), and general activity. For dieting or meal planning, TDEE is the relevant metric. - **How many calories do I need to lose weight?**: To lose weight, you need to consume fewer calories than your TDEE. A moderate deficit of 500 kcal per day leads to weight loss of about 0.5 kg per week. We recommend never going below your BMR and keeping the deficit between 300-750 kcal daily to lose weight sustainably without muscle loss. - **What is the Mifflin-St Jeor formula?**: The Mifflin-St Jeor formula is the most commonly recommended equation for calculating BMR today. Developed in 1990, it is considered the most accurate formula for most people. For men: BMR = 10 x weight(kg) + 6.25 x height(cm) - 5 x age(years) + 5. For women: same formula but -161 instead of +5. It accounts for gender, weight, height, and age. - **How accurate is a calorie calculator?**: Calorie calculators provide a good estimate with approximately 80-90% accuracy for most people. The Mifflin-St Jeor formula has an average deviation of about 10% from actual BMR. Factors like genetics, hormones, medications, and body composition can influence actual needs. If you enter your body fat percentage, the more accurate Katch-McArdle formula is used. - **Should I eat below my BMR?**: No, you should never eat below your BMR consistently. BMR only covers vital body functions. Calorie intake below BMR can lead to muscle loss, nutrient deficiency, metabolic slowdown, and hormonal imbalances. Our calculator sets a floor of 1,200 kcal. A moderate deficit below TDEE but above BMR is the safe approach. - **How much protein do I need per day?**: We recommend 1.8 g protein per kilogram of body weight per day. For muscle building (goal: gain weight), we increase the recommendation to 2.0 g/kg. Protein is crucial for muscle maintenance, satiety, and the thermic effect of food. At 75 kg body weight, that means 135 g protein daily — about 540 kcal from protein alone. - **How often should I recalculate my calorie needs?**: You should recalculate every 4-6 weeks, especially if your weight has changed by more than 2-3 kg, you've changed your training program, or you've hit a plateau. As body weight decreases, your BMR also decreases, so you need fewer calories than at the start of your diet. - **Are 1,200 calories per day enough?**: 1,200 kcal per day is the absolute minimum and only suitable for very small, light, and inactive individuals. For most people, this intake is too low and can lead to nutrient deficiencies. Women should consume at least 1,400-1,600 kcal and men at least 1,600-1,800 kcal daily. Our calculator considers your individual measurements and never sets an extreme deficit. - **How does exercise affect my calorie needs?**: Exercise significantly increases your TDEE. Depending on activity level, your BMR is multiplied by a PAL factor: Sedentary (1.2), Lightly active (1.375), Moderately active (1.55), Very active (1.725), Extremely active (1.9). Additionally, our calculator accounts for daily steps: above 7,000 steps, you get a bonus of 0.04 kcal per extra step. This accurately captures everyday movement too. --- ## BMI Calculator (BMI-Rechner) - [Calculator](https://rechenportal.de/bmi-rechner): Calculate and interpret your Body Mass Index - [English version](https://rechenportal.de/en/bmi-calculator) ### Blog Articles - [BMI Calculation and Interpretation: The Complete Guide 2026](https://rechenportal.de/en/bmi-calculator/blog/bmi-calculation-guide) *(pillar article)*: Everything you need to know about Body Mass Index: calculation, WHO categories, limitations and alternatives. - [BMI Table by Age and Gender: How to Read It Correctly](https://rechenportal.de/en/bmi-calculator/blog/bmi-table-age-gender): BMI normal values for every age and gender. Understand what your BMI really means. - [BMI for Children: Why Percentiles Matter More Than Fixed Values](https://rechenportal.de/en/bmi-calculator/blog/bmi-children-percentiles): Learn why standard BMI doesn't apply to children and how percentile charts work. - [BMI Alternatives: Waist-to-Hip Ratio, Body Fat Percentage and More](https://rechenportal.de/en/bmi-calculator/blog/bmi-alternatives-waist-hip-ratio): BMI has limitations. Learn better methods to assess your body composition. - [Ideal Weight Calculation: 5 Methods Compared](https://rechenportal.de/en/bmi-calculator/blog/ideal-weight-calculation-methods): From Broca to BMI: Which ideal weight formula is the most accurate? - [BMI for Athletes: Why Muscle Mass Skews the Results](https://rechenportal.de/en/bmi-calculator/blog/bmi-athletes-muscle-mass): Athletes often have a high BMI despite low body fat. What you should use instead. ### FAQ - **How do you calculate BMI?**: BMI is calculated by dividing body weight in kilograms by height in meters squared: BMI = Weight (kg) / Height (m)^2. For a person weighing 75 kg at 1.75 m tall: 75 / (1.75 x 1.75) = 24.5. - **What is a normal BMI?**: According to the WHO, a BMI between 18.5 and 24.9 is considered normal weight. Values below 18.5 indicate underweight, values from 25 indicate overweight, and from 30 indicate obesity. - **How meaningful is BMI?**: BMI is a simple screening value but has limitations: it doesn't distinguish between muscle and fat mass, doesn't account for fat distribution, and doesn't apply to children, pregnant women, or very muscular people. As an initial assessment, it's still useful. - **Does BMI apply to children?**: No, for children and adolescents under 18, age- and gender-specific BMI percentiles are used. A child with BMI 22 may be perfectly normal weight, while the same value at a different age may be classified differently. - **What is the average BMI in Germany?**: The average BMI in Germany is about 26.7 for men and 25.0 for women (Source: Federal Statistical Office / RKI DEGS1). This means the average falls in the overweight range. - **At what BMI are you overweight?**: According to the WHO, overweight starts at a BMI of 25.0 (pre-obese). From BMI 30 it's classified as Obesity Class I, from 35 Class II, and from 40 Class III (morbid obesity). - **Does the ideal BMI change with age?**: Yes, some experts recommend slightly higher BMI guidelines for older people. Studies show that a BMI of 25-27 in people over 65 is associated with the lowest mortality. However, WHO categories don't differentiate by age. - **Why is BMI inaccurate for athletes?**: Muscle mass is heavier than fat tissue. Muscular athletes can have a BMI over 25 despite low body fat percentage. Better metrics include body fat percentage (via calipers or DEXA scan) or the Ponderal Index. - **What's the difference between BMI and body fat percentage?**: BMI is based only on weight and height, while body fat percentage measures the actual fat proportion of total weight. Normal body fat is 10-20% for men and 20-30% for women. Body fat percentage is more meaningful but harder to measure. - **How often should you calculate your BMI?**: For healthy adults, calculating BMI every 6-12 months is sufficient. The trend over time is more important than the absolute value. During diet changes or training programs, monthly calculation can be useful. --- ## Macronutrient Calculator (Makronährstoff-Rechner) - [Calculator](https://rechenportal.de/makronaehrstoff-rechner): Calculate macros for your nutrition goal - [English version](https://rechenportal.de/en/macro-calculator) ### Blog Articles - [Macronutrient Calculation: The Complete Guide to Your Optimal Nutrition](https://rechenportal.de/en/macro-calculator/blog/macronutrient-calculation-guide) *(pillar article)*: Everything about macros: How to optimally calculate protein, fat and carbohydrates and align them to your goal. - [High-Protein Diet: How to Hit Your Protein Target](https://rechenportal.de/en/macro-calculator/blog/high-protein-diet): Why protein matters, how much you really need, and which foods are the best sources. - [Keto Macros Calculation: How to Properly Enter Ketosis](https://rechenportal.de/en/macro-calculator/blog/keto-macros-calculation): How to calculate your macros for a ketogenic diet and which mistakes to avoid. - [Macros for Weight Loss: The Optimal Distribution for Fat Loss](https://rechenportal.de/en/macro-calculator/blog/macros-weight-loss-distribution): Which macro distribution is most effective for weight loss and how to preserve muscle mass during a diet. - [Meal Prep by Macros: Your Weekly Plan for Optimal Nutrition](https://rechenportal.de/en/macro-calculator/blog/meal-prep-macros-weekly-plan): How to use meal prep to hit your macros stress-free — with a concrete weekly plan and shopping list. - [Macros Vegetarian & Vegan: How to Meet Your Protein Needs Plant-Based](https://rechenportal.de/en/macro-calculator/blog/macros-vegetarian-vegan-protein): Plant-based protein sources, optimal macro distribution, and tips for a balanced vegan or vegetarian diet. ### FAQ - **What are macronutrients?**: Macronutrients are the three main nutrient groups that provide energy: protein, fat, and carbohydrates. Protein provides 4 kcal per gram and is essential for muscle building and repair. Fat provides 9 kcal per gram and supports hormone production and vitamin absorption. Carbohydrates provide 4 kcal per gram and are the body's preferred energy source. - **How do I calculate my calorie needs (TDEE)?**: Your TDEE (Total Daily Energy Expenditure) is calculated in two steps: First, we determine your BMR (Basal Metabolic Rate) using the Mifflin-St Jeor formula based on gender, age, height and weight. Then we multiply the BMR by your activity factor (1.2 to 1.9) and a TEF factor (thermic effect of food, +10%). The result is your total daily energy requirement. - **How much protein do I need per day?**: Recommended protein intake depends on your goal: For muscle maintenance, 1.2-1.6 g per kg body weight is sufficient. For muscle building, sports medicine recommends 1.6-2.2 g/kg. During a diet (fat loss), you should aim for 2.0-2.4 g/kg to minimize muscle loss. Our calculator considers your goal and computes the optimal amount. - **What is the difference between BMR and TDEE?**: BMR (Basal Metabolic Rate) is your base metabolic rate -- the calories your body burns at complete rest (organ function, breathing, body temperature). TDEE (Total Daily Energy Expenditure) additionally accounts for your movement and the thermic effect of food. TDEE is always higher than BMR and is the actual basis for your macro calculation. - **Which diet style is best for weight loss?**: No single diet style is universally 'the best.' The calorie deficit is what matters, not the macro distribution. A 'Balanced' split (30/30/40) works well for most people. 'High Protein' (40/25/35) helps preserve muscle during a diet. 'Low Carb' and 'Keto' can curb appetite but aren't suitable for everyone. Choose the style you can sustain long-term. - **What is body recomposition?**: Body recomposition means simultaneously losing fat and building muscle. It works especially well for training beginners, overweight individuals, and those returning after a training break. The approach uses a slight calorie deficit (-5%) combined with high protein intake and strength training. Progress is slower than pure fat loss or muscle gain, but efficient. - **Do I need to know my body fat percentage for accurate results?**: No, the calculator works without a body fat input -- it uses the Mifflin-St Jeor formula. If you know your body fat percentage, it switches to the Katch-McArdle formula, which is based on lean body mass and provides more accurate results for athletic individuals or those with very high/low body fat. The difference is typically 50-150 kcal. - **How do I distribute my macros across meals?**: The simplest method: Divide your daily target equally across all meals. With 3 meals, each gets one third. For athletes, it may be beneficial to increase carb intake around training (pre/post-workout). Protein should be distributed as evenly as possible (every 3-5 hours), as the body can only optimally utilize a limited amount per meal (about 30-50g). - **Are fiber and water included in the calculation?**: Yes, we recommend at least 20-30 g of fiber daily (depending on carb amount) and water intake based on 33 ml per kg body weight, plus 0.5 L extra for high activity. Fiber is technically a carbohydrate but provides almost no calories and promotes digestion and satiety. - **How often should I recalculate my macros?**: Recalculate your macros every 4-6 weeks, especially if your weight has changed by more than 2-3 kg. You also need to recalculate when changing goals (e.g., from fat loss to muscle gain). Your body adapts its metabolism to changes, so regular adjustments are important for continued progress. --- ## Water Intake Calculator (Trinkmenge-Rechner) - [Calculator](https://rechenportal.de/trinkmenge-rechner): Calculate your personal daily water intake - [English version](https://rechenportal.de/en/water-intake-calculator) ### Blog Articles - [How Much Water Should You Drink Per Day? Your Individual Needs](https://rechenportal.de/en/water-intake-calculator/blog/daily-water-intake-guide) *(pillar article)*: The DGE recommends 35ml per kg body weight. Learn how activity, climate and lifestyle affect your water needs. - [Recognizing Dehydration: 10 Warning Signs From Your Body](https://rechenportal.de/en/water-intake-calculator/blog/dehydration-signs-symptoms): Headaches, fatigue, dark urine -- learn the early signs of dehydration and how to counteract them properly. - [Hydration for Sports: How Much Water Before, During and After Exercise?](https://rechenportal.de/en/water-intake-calculator/blog/water-intake-sports): Optimal hydration for sports: when, how much and which drinks. With practical rules of thumb for every sport. - [Water Intake for Children: How Much Do Babies, Toddlers and School Kids Need?](https://rechenportal.de/en/water-intake-calculator/blog/water-intake-children): From infant to teenager: the right water intake by age, including tips for children who don't like to drink. - [Does Drinking More Water Help You Lose Weight? What Science Says](https://rechenportal.de/en/water-intake-calculator/blog/water-intake-weight-loss): Can drinking water boost your metabolism? Studies show how hydration can help with weight loss. - [Coffee and Water Intake: Does Caffeine Really Dehydrate Your Body?](https://rechenportal.de/en/water-intake-calculator/blog/coffee-caffeine-water-intake): The myth of dehydrating coffee: what's really true and how to factor coffee into your water intake. ### FAQ - **How much water should I drink per day?**: The German Nutrition Society recommends 35ml per kilogram of body weight as a guideline. At 75kg, that's about 2.6 liters. With exercise, heat or pregnancy, the requirement increases significantly. - **Do coffee and tea count toward water intake?**: Yes, coffee and tea contribute to fluid intake. However, caffeine has a mild diuretic effect, which is why we add about 150ml extra per cup. Overall, they do count toward your daily intake. - **Can you drink too much water?**: Yes, excessive drinking (hyperhydration) can dangerously lower blood sodium levels (hyponatremia). But this only happens at extreme amounts of over 6-8 liters in a short time. Normally, the body regulates excretion reliably. - **How do I know if I'm not drinking enough?**: Typical signs include dark urine, headaches, fatigue, dry lips, concentration problems and dizziness. A simple test: if your urine is light yellow to clear, you're drinking enough. - **Do I really need more water during exercise?**: Yes, during exercise you lose 0.5 to 2 liters per hour through sweating. For moderate exercise we recommend 500ml extra, for intense sports up to 1,500ml. Ideally drink small amounts every 15-20 minutes. - **Why do I need more water in summer?**: In high temperatures, the body sweats more to cool down. In warm weather, needs increase by about 400ml; in extreme heat, by 800ml or more daily. - **How much should pregnant and nursing women drink?**: Pregnant women need about 300ml more per day for amniotic fluid formation and increased metabolism. Nursing mothers need up to 700ml more, as breast milk is about 87% water. - **Does the water in food count?**: Yes, about 20% of your water needs are covered by solid food. Fruits and vegetables like cucumber (96% water), watermelon (92%) or tomatoes (95%) are particularly water-rich. - **Is mineral water better than tap water?**: German tap water is strictly regulated and excellent in most regions. Mineral water provides additional minerals like calcium and magnesium depending on the brand. Health-wise, there's little difference. - **How can I build a habit of drinking more water?**: Keep a filled water bottle at your desk, drink a glass right after waking up and set hourly reminders. Water with lemon, cucumber or mint also adds variety. --- ## Percentage Calculator (Prozentrechner) - [Calculator](https://rechenportal.de/prozentrechner): Calculate percentages: base value, percentage, change, markup & discount - [English version](https://rechenportal.de/en/percentage-calculator) ### Blog Articles - [Percentage Calculation Explained -- The Complete Guide](https://rechenportal.de/en/percentage-calculator/blog/percentage-calculation-explained) *(pillar article)*: From the basic formula to mental math tricks: Everything you need to know about percentage calculations. - [VAT Calculation -- From Net to Gross and Back](https://rechenportal.de/en/percentage-calculator/blog/vat-calculation-net-gross): How to correctly calculate VAT: 7% vs. 19%, net-to-gross formula and common mistakes. - [Discount Calculation -- Formulas, Examples and Saving Tips](https://rechenportal.de/en/percentage-calculator/blog/discount-calculation-formula): How to correctly calculate discounts, understand tiered discounts and actually save money. - [Percentage Change Calculation -- Formula and Practice](https://rechenportal.de/en/percentage-calculator/blog/percentage-change-calculation): How to express and interpret growth, decline and fluctuations as percentages. - [Mental Math Percentages -- 7 Tricks for Quick Calculations](https://rechenportal.de/en/percentage-calculator/blog/mental-math-percentage-tricks): With these simple strategies you can calculate percentages lightning-fast in your head. - [Interest Calculation with Percentages -- Simple and Compound Interest](https://rechenportal.de/en/percentage-calculator/blog/interest-calculation-percent-explained): How interest relates to percentage calculations and why the compound interest effect is so powerful. ### FAQ - **How do you calculate percentages?**: The basic formula is: Percentage value = (Percentage / 100) x Base value. For example, to calculate 19% of 250: (19 / 100) x 250 = 47.50. The percentage indicates how many hundredths of a value are meant. Our percentage calculator offers five different calculation modes so you can solve any common percentage task. - **What is 19% of 100?**: 19% of 100 is 19. The calculation is straightforward: (19 / 100) x 100 = 19. This is the standard VAT rate in Germany. If a product costs EUR 100 net, the VAT is EUR 19 and the gross amount is EUR 119. - **How to calculate VAT?**: Net to gross: Gross = Net x 1.19 (at 19% VAT) or Net x 1.07 (at 7%). Gross to net: Net = Gross / 1.19 or Gross / 1.07. Extract VAT amount: VAT = Gross - (Gross / 1.19). In Germany, two rates apply: 19% (standard) and 7% (reduced, e.g. food, books). - **How to calculate a discount?**: Discounted price = Original price x (1 - Discount / 100). Example: 20% discount on EUR 89.99: 89.99 x (1 - 20/100) = 89.99 x 0.80 = EUR 71.99. You save EUR 18.00. With stacked discounts (e.g. 20% + 10%), multiply the factors: 0.80 x 0.90 = 0.72, so 28% total discount, not 30%. - **What is the difference between percent and percentage points?**: Percentage points describe the absolute difference between two percentage values. Example: If an interest rate rises from 2% to 3%, that's an increase of 1 percentage point, but a 50% increase (since 1/2 = 0.5 = 50%). This distinction is particularly important for interest rates, tax rates, and surveys. - **How to calculate percentage change?**: Percentage change = ((New value - Old value) / |Old value|) x 100. A positive result means increase, negative means decrease. Example: From 200 to 250 = ((250 - 200) / 200) x 100 = +25%. From 250 to 200 = ((200 - 250) / 250) x 100 = -20%. Note: The change is not symmetric! - **How to convert net to gross?**: Gross = Net x (1 + Tax rate / 100). At 19% VAT: Gross = Net x 1.19. At 7% VAT: Gross = Net x 1.07. Reverse from gross to net: Net = Gross / 1.19 (or / 1.07). Use the VAT quick buttons in our calculator for instant results. - **How to calculate tip percentage?**: Tip = Bill amount x (Tip percentage / 100). In Germany, 5-10% is customary. For a EUR 45 bill with 10% tip: 45 x 0.10 = EUR 4.50 tip, so EUR 49.50 total. Quick trick: 10% = move the decimal one place (45.00 becomes 4.50). - **What does 'percent' mean?**: The word 'percent' comes from the Latin 'pro centum' meaning 'per hundred'. So 25% means '25 out of 100' or one quarter. The percent sign (%) is an abbreviation of this relationship. Percentage calculation is a form of fraction arithmetic where the denominator is always 100: 25% = 25/100 = 0.25. - **How to calculate percentages mentally?**: Best tricks: 10% = move the decimal (350 becomes 35). 5% = half of 10%. 1% = move decimal two places. 15% = 10% + 5%. 20% = double 10%. 25% = divide by 4. 50% = halve it. 75% = 50% + 25%. For 19% VAT: Calculate 20% and subtract 1% (or x 0.2 minus x 0.01). --- ## Fraction Calculator (Bruchrechner) - [Calculator](https://rechenportal.de/bruchrechner): Add, subtract, multiply, divide, simplify and convert fractions - [English version](https://rechenportal.de/en/fraction-calculator) ### Blog Articles - [Fractions Explained — The Complete Guide 2026](https://rechenportal.de/en/fraction-calculator/blog/fractions-explained) *(pillar article)*: Everything about fraction arithmetic: basics, rules, simplifying, expanding, and avoiding common mistakes. - [Adding and Subtracting Fractions — Step by Step](https://rechenportal.de/en/fraction-calculator/blog/adding-subtracting-fractions): How to add and subtract fractions correctly: find a common denominator, expand, and calculate. - [Simplifying Fractions with GCD — How It Works](https://rechenportal.de/en/fraction-calculator/blog/simplifying-fractions-gcd): Learn how to simplify fractions using the greatest common divisor (GCD). With examples and explanations. - [Converting Between Fractions and Decimals](https://rechenportal.de/en/fraction-calculator/blog/fraction-decimal-conversion): How to convert fractions to decimals and decimals to fractions — including repeating decimals. - [Converting Mixed Numbers — Improper Fractions and Back](https://rechenportal.de/en/fraction-calculator/blog/mixed-numbers-conversion): Convert mixed numbers to improper fractions and back — simply explained with examples. - [Multiplying and Dividing Fractions — Reciprocals Made Easy](https://rechenportal.de/en/fraction-calculator/blog/multiplying-dividing-fractions-reciprocal): Multiplying and dividing fractions: how to use the reciprocal and avoid common mistakes. ### FAQ - **How do you add fractions?**: To add fractions, they must have the same denominator. Find the least common multiple (LCM) of the denominators, expand both fractions to that denominator, then add the numerators. Example: 1/4 + 2/3 = 3/12 + 8/12 = 11/12. - **How do you multiply fractions?**: When multiplying fractions, simply multiply numerator by numerator and denominator by denominator. Example: 2/3 × 3/5 = 6/15 = 2/5 (simplified). A common denominator is not needed. - **What does simplifying fractions mean?**: Simplifying means dividing numerator and denominator by their greatest common divisor (GCD). The fraction keeps its value but becomes simpler. Example: 12/18 ÷ 6 = 2/3. The GCD of 12 and 18 is 6. - **How do you convert fractions to decimals?**: Divide the numerator by the denominator. Example: 3/4 = 3 ÷ 4 = 0.75. Some fractions result in repeating decimals, e.g., 1/3 = 0.333... (repeating 3). - **What is a mixed number?**: A mixed number consists of a whole number and a proper fraction, e.g., 2 3/4. It arises when the numerator is larger than the denominator (improper fraction): 11/4 = 2 3/4, because 11 ÷ 4 = 2 remainder 3. - **How do you divide fractions?**: To divide by a fraction, multiply by its reciprocal (numerator and denominator are swapped). Example: 2/3 ÷ 4/5 = 2/3 × 5/4 = 10/12 = 5/6. - **What is the GCD (greatest common divisor)?**: The GCD is the largest number that divides both numerator and denominator without remainder. It's used to simplify fractions. For 24 and 36, the GCD is 12, because 24 = 2×12 and 36 = 3×12. - **What is the LCM (least common multiple)?**: The LCM of two numbers is the smallest positive number divisible by both. It's used as the common denominator when adding and subtracting fractions. For 4 and 6, the LCM is 12. - **How do you compare fractions?**: Bring both fractions to the same denominator (LCM) and compare the numerators. The fraction with the larger numerator is greater. Alternatively, convert both to decimals and compare directly. - **In which grade do students learn fractions?**: In Germany, fraction arithmetic is typically introduced in 5th and 6th grade. Simple fractions and the concept of sharing are covered in elementary school, while formal fraction arithmetic with all operations follows in secondary school. --- ## Rule of Three Calculator (Dreisatz-Rechner) - [Calculator](https://rechenportal.de/dreisatz-rechner): Proportional, inverse and compound rule of three with step-by-step solution - [English version](https://rechenportal.de/en/rule-of-three-calculator) ### Blog Articles - [Rule of Three Explained: Formula, Examples & Calculator](https://rechenportal.de/en/rule-of-three-calculator/blog/rule-of-three-explained) *(pillar article)*: The complete guide to the Rule of Three: proportional, inverse and compound — with step-by-step solutions and exercises. - [Rule of Three Exercises with Solutions: 20 Practice Problems](https://rechenportal.de/en/rule-of-three-calculator/blog/rule-of-three-exercises-solutions): 20 rule of three exercises with detailed solutions — from easy to advanced, perfect for practice. - [Inverse Rule of Three Explained](https://rechenportal.de/en/rule-of-three-calculator/blog/inverse-rule-of-three-explained): When the inverse Rule of Three applies, how it works and how to avoid common mistakes. - [Compound Rule of Three Guide](https://rechenportal.de/en/rule-of-three-calculator/blog/compound-rule-of-three-guide): Step-by-step guide to compound Rule of Three calculations with multiple variables. - [Rule of Three in Everyday Life: 10 Applications](https://rechenportal.de/en/rule-of-three-calculator/blog/rule-of-three-everyday-applications): 10 practical examples of how the Rule of Three helps in daily life — from shopping to DIY. - [Rule of Three in School: Grade 6 to Graduation](https://rechenportal.de/en/rule-of-three-calculator/blog/rule-of-three-school-guide): From first introduction in grade 6 to final exams — how to master the Rule of Three in school. ### FAQ - **What is the Rule of Three?**: The Rule of Three is a mathematical method to calculate an unknown value when three values of a ratio are known. It is one of the most important tools in everyday mathematics, used in many areas such as shopping, cooking, finance, and technology. - **How do you calculate the Rule of Three?**: For the proportional Rule of Three: 1) Write down the known values (a units = b value). 2) Divide by a to get the value for 1 unit. 3) Multiply by the desired quantity c. The formula is: x = (b × c) / a. - **What is the difference between proportional and inverse?**: In proportional Rule of Three, both quantities increase together (twice as much → twice the price). In inverse Rule of Three, one quantity increases while the other decreases (twice as many workers → half the time). The inverse formula is: x = (a × b) / c. - **When do you need the inverse Rule of Three?**: You need the inverse Rule of Three when one value increases and the other decreases as a result. Typical examples: more workers → less time, higher speed → shorter travel time, more machines → less production time per unit. - **What is a compound Rule of Three?**: A compound Rule of Three is used when more than two quantities are involved. It is solved step by step: first adjust the first quantity (proportional or inverse), then the second. The result from step 1 becomes the starting value for step 2. - **Can you solve percentages with the Rule of Three?**: Yes! Percentage calculation is a special case of the Rule of Three. Example: 100% = €500, find: 15%. Solution: €500 ÷ 100 × 15 = €75. The Rule of Three is often simpler because you don't need to distinguish between base value, percentage value, and rate. - **In which grade do you learn the Rule of Three?**: The Rule of Three is typically introduced in grade 6 or 7. The proportional version comes first, the inverse version usually follows one school year later. The compound Rule of Three is often covered in grade 8 or 9. - **How do I tell if it's proportional or inverse?**: Ask yourself: 'If one quantity increases, does the other increase or decrease?' If it increases → proportional. If it decreases → inverse. Example: buying more apples → higher price (proportional). More people share a pizza → less per person (inverse). - **What is the difference between the Rule of Three and a ratio equation?**: Mathematically, both are equivalent. The Rule of Three solves the problem step by step (calculate for 1, then scale up), the ratio equation sets a:b = c:x and solves for x. The Rule of Three is more intuitive, while the ratio equation is more concise. - **How do you verify a Rule of Three calculation?**: For proportional Rule of Three, check that the ratio stays the same: a/b must equal c/x. For inverse Rule of Three, check that the products are equal: a × b must equal c × x. If the check passes, your result is correct. --- ## Bitcoin Production Cost Calculator (Bitcoin-Produktionskosten-Rechner) - [Calculator](https://rechenportal.de/bitcoin-produktionskosten-rechner): Calculate production cost floor: hashrate, energy costs, halving projection - [English version](https://rechenportal.de/en/bitcoin-production-cost-calculator) ### Blog Articles - [Bitcoin Production Costs 2026: What Mining Really Costs -- and What It Means for BTC Price](https://rechenportal.de/en/bitcoin-production-cost-calculator/blog/bitcoin-production-costs-2026-mining-price) *(pillar article)*: Analysis of real mining costs: electricity consumption, hardware efficiency, and the thermodynamic floor price for Bitcoin. - [Bitcoin Halving Explained: Why the Floor Price Doubles Every 4 Years](https://rechenportal.de/en/bitcoin-production-cost-calculator/blog/bitcoin-halving-floor-price-doubling): How the halving affects the production cost floor and what it means for miners and investors. - [Bitcoin Energy Consumption: Facts Over FUD -- What the Network Really Uses](https://rechenportal.de/en/bitcoin-production-cost-calculator/blog/bitcoin-energy-consumption-facts-network): How much electricity does Bitcoin really use? A fact-based analysis beyond the headlines. - [Miner Capitulation: What Happens When BTC Falls Below Production Cost?](https://rechenportal.de/en/bitcoin-production-cost-calculator/blog/bitcoin-miner-capitulation-production-costs): Bitcoin's self-correcting mechanism: when miners capitulate, the floor drops -- and the system stabilizes. - [Why Transaction Fees Will Determine Bitcoin's Future](https://rechenportal.de/en/bitcoin-production-cost-calculator/blog/bitcoin-transaction-fees-future): Block rewards keep shrinking -- how transaction fees will reshape miner economics from 2036 onward. - [Bitcoin vs. Gold: Production Costs Compared -- What Is 'Digital Gold' Really Worth?](https://rechenportal.de/en/bitcoin-production-cost-calculator/blog/bitcoin-gold-production-costs-compared): Gold mining vs. Bitcoin mining: both consume energy to produce scarce assets. An economic comparison. ### FAQ - **What are Bitcoin production costs?**: Bitcoin production costs describe the financial expenditure required to create one Bitcoin through mining. They consist of electricity costs (the largest component), hardware depreciation, cooling and infrastructure costs, and staffing and rental expenses. Since mining is an energy-intensive process where computing power (hashrate) is expended to find new blocks, production costs are directly tied to the network's energy consumption. The 'production cost floor' is the BTC price below which mining becomes unprofitable on average. - **How is the production cost floor calculated?**: The formula is: Floor = (Hashrate x Efficiency x Electricity Price x 24h x (1 + Overhead)) / (144 Blocks x Block Reward + Daily Fees). This is the economic identity from the Bitcoin whitepaper (Section 6): miners must at least cover their costs to continue operating. Hashrate indicates how much computing power the network deploys, efficiency describes energy consumption per terahash, and the block reward is the compensation for finding each block. - **What happens at a Bitcoin halving?**: At a halving, the block reward is cut exactly in half -- an immutable mechanism coded into the Bitcoin protocol. This happens every 210,000 blocks (approximately every 4 years). At the last halving in April 2024, the reward dropped from 6.25 to 3.125 BTC per block. This means: miners receive less BTC for the same work, which theoretically doubles the production cost floor at constant hashrate and efficiency. The halving is Bitcoin's central deflationary mechanism, limiting total supply to 21 million BTC. - **Why does the floor price rise after each halving?**: When the block reward halves, daily BTC production also halves -- but mining costs (electricity, hardware, operations) remain the same or even increase. Since Floor = Costs / BTC Output, the floor doubles when production halves at constant costs. In practice, this is partially offset by efficiency improvements in new mining hardware, but historically the floor price has risen significantly after each halving. Transaction fees also have a compensating effect but only become relevant in the long term. - **How much electricity does the Bitcoin network use?**: At the current hashrate of approximately 1,000 EH/s and an average fleet efficiency of 22 J/TH, the Bitcoin network consumes about 22 GW continuously -- equivalent to roughly 193 TWh per year. For comparison, this is similar to the electricity consumption of Thailand or Poland. However, a growing share (estimated 50-60%) comes from renewable energy sources, particularly hydroelectric, excess wind, and solar power. Mining hardware efficiency continues to improve: current top models achieve 12-15 J/TH compared to 100+ J/TH just a few years ago. - **What is mining efficiency (J/TH)?**: J/TH (Joules per Terahash) is the metric for mining hardware energy efficiency. It indicates how much energy a miner consumes per computing operation. The lower the value, the more efficient the miner. Current top models achieve around 12 J/TH, while older generations sit at about 29.5 J/TH. The 'fleet efficiency' in our calculator is the weighted average of all active miners worldwide -- estimated at approximately 22 J/TH in 2026. The physical lower bound is about 3 J/TH (thermodynamic limit). - **What happens when mining is no longer profitable?**: When the BTC price falls below production costs, unprofitable miners shut down their equipment -- this is called 'miner capitulation.' This causes the network hashrate to drop. The Bitcoin protocol responds automatically: every 2,016 blocks (approximately 2 weeks), mining difficulty adjusts. With less hashrate, difficulty decreases, making mining cheaper again -- the production cost floor also drops. A new equilibrium forms at a lower level. This self-correcting system is a core design element from the Bitcoin whitepaper (Section 4). - **Are production costs a price prediction?**: No, explicitly not. Production costs show the thermodynamic minimum price at which mining is economically viable -- not the market price. The actual BTC price is determined by supply and demand, speculation, regulatory developments, and market sentiment, and often lies far above the floor. Historically, however, the BTC price has rarely traded below the production cost floor for extended periods -- since in such phases, hashrate drops and the floor adjusts downward. The floor is therefore a dynamic bottom, not a fixed value. - **How important will transaction fees become?**: Critically important. With each halving, the block reward halves: from ~2036 onward, block rewards will be less than 1 BTC per block. Eventually -- as envisioned by the whitepaper -- transaction fees must become miners' primary revenue source. If fees don't grow sufficiently, the production cost floor rises exponentially, since fewer BTC come from block rewards. Developments like Ordinals, BRC-20 tokens, and the Lightning Network influence fee dynamics. Our halving projection tab shows the various scenarios. - **Which ASIC miners are currently most efficient?**: As of 2026, the most efficient available ASIC miners reach around 12 J/TH at about 473 TH/s, followed by models at 13.5 J/TH (270 TH/s) and 15 J/TH (234 TH/s). These top models can operate profitably at electricity prices below $0.05/kWh. Older generations at around 29.5 J/TH (110 TH/s) are no longer profitable under current conditions in many regions. Profitability depends directly on electricity price and current BTC price -- our miner comparison shows the break-even prices. --- ## School Year Cost Calculator (Schuljahr-Kosten-Rechner) - [Calculator](https://rechenportal.de/schuljahr-kosten-rechner): Calculate all school costs: supplies, lunch, transport, after-school care, class trips - [English version](https://rechenportal.de/en/school-year-cost-calculator) ### Blog Articles - [How Much Does a School Year Cost in Germany? Complete Overview 2026](https://rechenportal.de/en/school-year-cost-calculator/blog/school-year-cost-germany) *(pillar article)*: School supplies, lunch, transport, class trips - all school costs at a glance with saving tips for families. - [School Supplies Checklist: What Do You Really Need?](https://rechenportal.de/en/school-year-cost-calculator/blog/school-supplies-checklist): The complete shopping list for back to school - sorted by grade with price comparison. - [Textbook Subsidies: What Does Each German State Cover?](https://rechenportal.de/en/school-year-cost-calculator/blog/textbook-subsidies-by-state): Overview of textbook subsidies in all 16 German states - which costs are covered by the government. - [Class Trip Costs: What Can Schools Charge?](https://rechenportal.de/en/school-year-cost-calculator/blog/class-trip-costs-rights): Legal basics, typical costs and financial aid for school trips in Germany. - [Private vs. Public School: Is the Price Difference Worth It?](https://rechenportal.de/en/school-year-cost-calculator/blog/private-vs-public-school): Costs, quality and differences between public and private schools in Germany. - [Tutoring Costs: What Is a Fair Price?](https://rechenportal.de/en/school-year-cost-calculator/blog/tutoring-costs-prices): Prices for individual and group tutoring, online vs. in-person and when tutoring is really worth it. - [Buying a School Bag: What Parents Should Know and What It Costs](https://rechenportal.de/en/school-year-cost-calculator/blog/school-bag-buying-guide): Ergonomics, safety and price - the ultimate buying guide for the right school bag. ### FAQ - **What does a school year cost on average in Germany?**: A school year costs families in Germany an average of 2,000 to 3,500 euros. This includes school supplies, lunch, transport, class trips and after-school care. Private schools, tutoring and extracurricular activities can significantly increase costs. Costs vary considerably by state, school type and individual needs. - **Which school costs does the state cover?**: The state generally covers teachers, school buildings and teaching materials. Textbooks are free or cheaply available on loan in many federal states through Lernmittelfreiheit. Low-income families can receive subsidies through the Education and Participation package (BuT) for school supplies (195 Euro/year), lunch, class trips and tutoring. - **How much does school cafeteria lunch cost?**: A school cafeteria lunch typically costs 3 to 5 euros per meal. Over 185 school days per year, that amounts to 555 to 925 euros annually. Families eligible for BuT pay only a reduced contribution of 1 euro per meal. Packed lunches are cheaper but still cost about 2 to 3 euros per day in ingredients. - **Is there financial aid for school costs?**: Yes, there are several support programs: The Education and Participation package (BuT) covers costs for school supplies, lunch, class trips and tutoring. The school supply allowance is 195 euros per school year. Many municipalities offer additional support. From grade 10, student BAFoeG is possible (up to 262 Euro/month). Foundations and support associations also help when needed. - **How much does private school cost in Germany?**: Private schools cost between 100 and 2,000 euros per month, depending on the operator and offering. The average is 200 to 500 euros monthly. Denominational schools are often cheaper (100-250 euros), while international schools can cost 800 to 2,000 euros. Many private schools offer income-based fee models and scholarships. - **How much to budget for school supplies?**: Families should budget 80 to 400 euros per school year for supplies. Primary school costs run 80-250 euros, secondary school 100-350 euros, and upper secondary 120-400 euros. The biggest items are school bags (100-250 euros in year 1), pens, notebooks, calculators and sports equipment. - **Are school textbooks free in Germany?**: It depends on the federal state. Some states like Berlin (grades 1-6), Hesse and Saxony offer complete textbook provision. Other states have a lending system with own contributions. In North Rhine-Westphalia, parents cover about a third of costs. Workbooks and reading materials must be purchased almost everywhere. - **How much does tutoring cost per hour?**: Tutoring in Germany costs between 10 and 50 euros per hour. Individual tutoring by qualified teachers runs 25-45 Euro/hour, group tutoring at commercial providers 15-25 Euro/hour (contract). Online tutoring is often cheaper (10-25 Euro/hour). BuT covers tutoring costs for eligible families. - **How much do class trips cost?**: Day trips cost 20-40 euros, short trips (2-3 days) 100-200 euros and major class trips (5 days) 300-500 euros. Typically one class trip occurs per school year. Schools may not make participation dependent on ability to pay. BuT-eligible families can have costs reimbursed. - **When is a student transport pass worth it?**: A student transport pass is worth it as soon as the school route cannot be covered on foot or by bicycle. In Berlin and Hamburg, the student pass is even free. In most federal states it costs 15-30 euros per month. For comparison: parents who drive their child 5 km to school daily pay about 560 euros per year in driving costs. --- ## University Cost Calculator (Studienkosten-Rechner) - [Calculator](https://rechenportal.de/studienkosten-rechner): Plan your studies: semester costs, living expenses, BAföG, financing gap - [English version](https://rechenportal.de/en/university-cost-calculator) ### Blog Articles - [How Much Does University Cost in Germany? Costs & Funding 2026](https://rechenportal.de/en/university-cost-calculator/blog/university-cost-germany-guide) *(pillar article)*: Semester fees, living costs, BAfoeg and funding options - everything you need to know about the cost of studying in Germany. - [BAfoeg 2026: Maximum Rate, Application & Repayment Explained](https://rechenportal.de/en/university-cost-calculator/blog/bafoeg-maximum-rate-application): Everything about the BAfoeg maximum rate 2026, how to apply, and how repayment works. - [Student Dorm vs. Shared Flat: Cost Comparison](https://rechenportal.de/en/university-cost-calculator/blog/student-dorm-vs-shared-flat-costs): Which is cheaper: a dorm or a shared flat? We compare rent, utilities, and pros/cons. - [The Cheapest and Most Expensive University Cities in Germany](https://rechenportal.de/en/university-cost-calculator/blog/cheapest-university-cities-germany): Ranking of university cities by living costs: Where is studying cheap, and where is it expensive? - [Part-Time Job as a Student: How Much Can You Earn?](https://rechenportal.de/en/university-cost-calculator/blog/student-part-time-job-earnings-limit): Earnings limits for students: mini-job, working student, and the impact on BAfoeg and health insurance. - [Study Financing: BAfoeg, Scholarship, Loan Compared](https://rechenportal.de/en/university-cost-calculator/blog/study-financing-comparison): Which financing option is best? Comparison of BAfoeg, scholarships, and student loans. - [Semester Fee Explained: Why You Pay Up to 420 Euros per Semester](https://rechenportal.de/en/university-cost-calculator/blog/semester-fee-explained-costs): What is included in the semester fee? Semester ticket, student services, and admin fees broken down. ### FAQ - **How much does university cost in Germany in total?**: A bachelor's degree (6 semesters) at a public university costs an average of 36,000 to 54,000 euros, a master's degree (4 semesters) about 24,000 to 36,000 euros. This includes living costs, semester fees, and study materials. Private universities charge additional tuition fees of 3,000 to 15,000 euros per semester. - **Are there tuition fees in Germany?**: Public universities in Germany do not charge tuition fees for the first degree. Only the semester fee applies (approx. 130-420 euros). Private universities, however, charge tuition of typically 3,000 to 15,000 euros per semester. For non-EU citizens, Baden-Wuerttemberg has been charging 1,500 euros per semester since 2017. - **What is the semester fee?**: The semester fee is a mandatory charge paid by all students at public universities. It consists of the student services fee (canteen, counseling), the student union fee, and in most states the semester ticket for public transport. The amount varies between 130 and 420 euros per semester depending on the state and university. - **How much money does a student need per month?**: According to the 22nd Social Survey by DSW, students in Germany need an average of 850 to 1,050 euros per month. In major cities like Munich or Hamburg, it can exceed 1,200 euros, while smaller university towns often suffice with 700 to 800 euros. The biggest items are rent (300-700 euros) and food (200-400 euros). - **How does BAfoeg work?**: BAfoeg (Federal Training Assistance Act) is government funding for students whose parents cannot finance their studies. The maximum rate is 934 euros monthly (2024). Half is a grant (no repayment), the other half is an interest-free loan. Repayment begins 5 years after graduation and is capped at 10,010 euros. - **How much can students earn on the side?**: With a mini-job, you can earn up to 603 euros monthly (2026). As a working student, you work a maximum of 20 hours per week during lectures, with no earnings limit. BAfoeg recipients can earn up to 6,270 euros gross per year (approx. 522 euros/month) without their BAfoeg being reduced. - **What does a shared room cost in Germany?**: A shared flat room costs between 250 and 650 euros including utilities, depending on the city. Munich averages 550-650 euros, Berlin 450-550 euros, Cologne 400-500 euros, and East German cities like Leipzig 280-350 euros. Student dorms are significantly cheaper at 200-350 euros but often have long waiting lists. - **What insurance do students need?**: Health insurance is mandatory. Until age 25, you're covered for free through family insurance. After that, student health insurance costs about 110 euros monthly. Personal liability insurance (from 30 euros/year) is strongly recommended. Optional are household contents insurance and disability insurance (often very affordable for students). - **Is a scholarship worth it?**: Absolutely! Scholarships don't need to be repaid and often offer, in addition to financial support (100-1,500 euros/month), non-material benefits like seminars and networking. The Deutschlandstipendium (300 euros/month) is particularly popular. Beyond major foundations, there are hundreds of small, subject-specific scholarships. Applying is almost always worthwhile. - **How much does private university cost?**: Private universities cost between 3,000 and 15,000 euros per semester, totaling 18,000 to 90,000 euros for a bachelor's degree. Normal living costs apply on top. Some private universities offer financing models where tuition is repaid from salary after graduation (Income Share Agreements). --- ## Severance Pay Calculator (Abfindungsrechner) - [Calculator](https://rechenportal.de/abfindungsrechner): Calculate severance pay: fifth-part rule, tax burden, optimization tips - [English version](https://rechenportal.de/en/severance-calculator) ### Blog Articles - [Severance Pay in Germany 2026: How Much Am I Entitled To — and What's Left After Tax?](https://rechenportal.de/en/severance-calculator/blog/severance-pay-2026-guide) *(pillar article)*: The comprehensive guide to severance pay: standard formula, fifth-part rule, negotiation tips and tax optimization. - [The Fifth-Part Rule Explained: How to Save Taxes on Your Severance Pay](https://rechenportal.de/en/severance-calculator/blog/fifth-part-rule-explained): Step-by-step explanation of the fifth-part rule with calculation examples and requirements. - [Severance and Unemployment Benefits: What Many Don't Know](https://rechenportal.de/en/severance-calculator/blog/severance-unemployment-benefits): How severance affects unemployment benefits, when waiting periods apply and how to combine both optimally. - [Negotiating Severance: How to Get a Better Deal](https://rechenportal.de/en/severance-calculator/blog/negotiating-severance-tips): Practical negotiation strategies, common mistakes and how to strengthen your position. - [Severance Into Company Pension: Legally Save on Taxes](https://rechenportal.de/en/severance-calculator/blog/severance-company-pension-tax): How to transfer parts of your severance tax-free into a company pension and benefit twice. - [Dismissal Without Severance: When Employees Have No Claim](https://rechenportal.de/en/severance-calculator/blog/dismissal-without-severance): When there is no severance entitlement and what alternatives exist for employees. ### FAQ - **How is severance pay calculated in Germany?**: The most common method is the standard formula (Faustformel): 0.5 gross monthly salaries per year of service. For a monthly salary of €4,000 and 10 years of employment, this results in €20,000 gross severance. The factor can range from 0.25 to 1.5 depending on age, length of service, and negotiating position. - **What is the fifth-part rule (Fünftelregelung) and how does it work?**: The fifth-part rule (§ 34 EStG) is a tax benefit for extraordinary income like severance payments. Instead of taxing the full severance at the normal rate, only one-fifth is added to regular income, and the resulting additional tax is multiplied by five. This significantly reduces the tax burden because the progressive tax rate has less impact. - **Do I have to pay social security contributions on severance pay?**: No. Genuine severance payments made as compensation for job loss are exempt from social security contributions. No deductions for health, pension, nursing care, or unemployment insurance apply. However, salary components disguised as severance may be subject to social security scrutiny. - **Do I have a legal right to severance pay in Germany?**: There is generally no automatic legal right to severance pay in Germany. An exception is § 1a KSchG: in case of operational dismissal, the employer can offer severance if the employee waives their right to file an unfair dismissal claim. In practice, severance is often negotiated through termination agreements, social plans, or court settlements. - **How does severance pay affect unemployment benefits?**: Severance pay is not deducted from unemployment benefits (ALG I) as long as the notice period was observed. However, a termination agreement can trigger a waiting period of up to 12 weeks for ALG I. The benefit duration may also be shortened if the employment ended before the regular notice period would have expired. - **Can I transfer my severance into a company pension plan?**: Yes, this is one of the most effective tax optimization strategies. Parts of the severance can be transferred tax-free into a direct insurance policy or pension fund. The exact tax-free amounts are governed by § 3 No. 63 EStG and depend on contribution assessment ceilings. - **In which year should I have the severance paid out?**: The choice of payment year can significantly affect the tax burden. The lower your other income in the payment year, the lower the tax on the severance. If your employment ends at year-end, payment in January of the following year can be advantageous if you initially receive only unemployment benefits. - **What happens with severance during the probation period?**: During the probation period (maximum 6 months), employment protection under the KSchG generally does not apply. The notice period is only 2 weeks. There is no entitlement to severance — neither legally nor under the standard formula. In rare cases, small severance amounts are agreed upon in settlements. - **Does the fifth-part rule apply to severance in a termination agreement?**: Yes, the fifth-part rule applies to all severance payments made as compensation for job loss — regardless of whether they result from dismissal, termination agreement, or court settlement. The prerequisite is that the severance is paid as a lump sum or within a single tax assessment period. - **From what company size does the Employment Protection Act apply?**: The Employment Protection Act (KSchG) applies to businesses with more than 10 employees (full-time equivalents). Part-time workers are counted proportionally: up to 20 hours/week = 0.5, up to 30 hours/week = 0.75. In small businesses with fewer than 10 employees, only general dismissal protection applies — offering significantly less protection. --- ## ETF Savings Plan Calculator (ETF-Sparplanrechner) - [Calculator](https://rechenportal.de/etf-sparplan-rechner): Simulate ETF savings plans: compound interest, scenarios, withdrawal planning - [English version](https://rechenportal.de/en/etf-savings-plan-calculator) ### Blog Articles - [ETF Savings Plan 2026: How to Build Wealth -- and How Long It Lasts](https://rechenportal.de/en/etf-savings-plan-calculator/blog/etf-savings-plan-2026-build-wealth) *(pillar article)*: The complete guide to ETF savings plans: From your first monthly contribution to your retirement withdrawal strategy. - [ETF Withdrawal Strategy: How Long Will Your Wealth Last in Retirement?](https://rechenportal.de/en/etf-savings-plan-calculator/blog/etf-withdrawal-strategy-retirement): The 4% rule, dynamic withdrawal, and capital preservation: How to plan your withdrawal phase correctly. - [Compound Interest Effect: Why Starting Early Makes Such a Difference](https://rechenportal.de/en/etf-savings-plan-calculator/blog/compound-interest-start-early): The earlier you start, the more compound interest works for you. Concrete examples and tips. - [ETF Costs (TER): Why a 0.3% Difference Costs Tens of Thousands](https://rechenportal.de/en/etf-savings-plan-calculator/blog/etf-costs-ter-long-term-difference): The hidden return killer: How seemingly small TER differences compound over decades. - [Capital Gains Tax on ETFs 2026: Advance Tax, Partial Exemption, and What's Really Left](https://rechenportal.de/en/etf-savings-plan-calculator/blog/capital-gains-tax-etf-2026-advance-tax): All tax rules for ETF investors in 2026: Tax-free allowance, advance lump sum, and partial exemption explained simply. - [100 EUR vs 200 EUR vs 500 EUR ETF Savings Plan: What Difference Does It Make After 30 Years?](https://rechenportal.de/en/etf-savings-plan-calculator/blog/etf-savings-plan-100-200-500-comparison): We do the math: How different savings rates develop over 10, 20, and 30 years. ### FAQ - **How much money can I build with an ETF savings plan?**: It depends on three factors: savings rate, investment horizon, and return. With EUR 200 monthly, 7% return, and a 20-year horizon, you end up with approximately EUR 104,000 -- from only EUR 48,000 in contributions. The longer the period, the stronger the compound interest effect. Over 30 years, the same example grows to over EUR 243,000. Use our calculator to compute your individual situation. - **What return is realistic for ETFs?**: Broadly diversified equity ETFs (e.g., MSCI World) have historically achieved an average return of 7-8% per year, before costs and inflation. After deducting the TER (typically 0.10-0.50%) and inflation (approx. 2%), a real return of about 4-5% remains. However, there are no guarantees: in individual years, returns can range from -40% to +40%. What matters is the long-term average over at least 10-15 years. - **What is the advance lump sum tax and how is it calculated?**: The advance lump sum (Vorabpauschale) is an annual prepaid tax on unrealized ETF gains that has applied in Germany since 2018. It is calculated as: Base return = Fund value at start of year x base interest rate (2025: 2.29%) x 0.7. The advance lump sum is capped at the actual gain for the year. The partial exemption (30% for equity funds) is deducted, then the tax-free allowance (EUR 1,000 / EUR 2,000). Capital gains tax of 25% plus solidarity surcharge applies to the remaining amount. - **How does partial tax exemption work for ETFs?**: Partial tax exemption exempts a portion of ETF returns from taxation: 30% for equity funds (at least 51% stock share), 15% for mixed funds (25-50% stock share), 0% for other funds. An equity fund ETF with EUR 1,000 in gains is thus taxed on only EUR 700. At 25% capital gains tax plus 5.5% solidarity surcharge, this results in an effective tax burden of approximately 18.5% instead of 26.4%. The partial exemption applies both to the advance lump sum and upon sale. - **How long will my ETF wealth last with monthly withdrawals?**: It depends on the ratio between withdrawal rate and return. With EUR 200,000 capital, EUR 1,000 monthly withdrawal, and 4% return (after TER), the wealth lasts approximately 25 years. The classic 4% rule states: If you withdraw a maximum of 4% of your capital annually, you can maintain your wealth with high probability over 30 years. Important: Inflation increases withdrawal needs over time -- our calculator accounts for this. - **What is compound interest and why is it so important?**: Compound interest means your gains themselves generate gains. At 7% return, your capital roughly doubles every 10 years. But the effect accelerates: in the first 10 years, EUR 200/month grows to about EUR 35,000. In the second 10 years, another EUR 69,000 is added -- even though you contribute the same amount. After 30 years, the total is EUR 243,000, of which EUR 171,000 is pure capital gains. This shows: time is the most important factor in investing. - **How do fund costs (TER) affect long-term returns?**: The TER (Total Expense Ratio) is deducted annually from fund assets and acts as a return killer through the compound interest effect. With EUR 200/month over 30 years: At 0.2% TER, you reach approximately EUR 234,000, but at 0.5% TER only about EUR 222,000 -- a difference of EUR 12,000. At 1.5% TER (typical for active funds), the result drops to about EUR 190,000. This is why financial experts recommend low-cost index ETFs with a TER below 0.3%. - **Should I invest monthly or as a lump sum?**: Statistically, a lump sum investment achieves higher returns because the money works in the market longer (in about 66% of cases, lump sum beats regular investing). But: a monthly savings plan offers the cost-averaging effect -- you buy more shares when prices are low and fewer when high. For most investors, the savings plan is the better choice because: a) most people don't have large capital for a lump sum, b) a savings plan is psychologically easier to maintain, c) timing risk is reduced. - **How are ETF gains taxed in Germany?**: ETF gains in Germany are subject to capital gains tax: 25% Abgeltungssteuer plus 5.5% solidarity surcharge (effectively 26.375%). With church tax obligation, the capital gains tax is slightly reduced (formula: 25% / (1 + church tax rate)), but church tax is added on top. Tax-free allowance: EUR 1,000 per person (EUR 2,000 for married couples). Important: The partial exemption reduces taxable returns (30% for equity funds). Additionally, the annual advance lump sum tax (Vorabpauschale) is levied on unrealized gains. - **What is a safe withdrawal rate?**: The most well-known rule of thumb is the 4% rule from the Trinity Study (1998): If you withdraw a maximum of 4% of your initial portfolio value (inflation-adjusted) annually, historically you would have had capital remaining after 30 years in 95% of cases. For a portfolio of EUR 500,000, that would be EUR 20,000 per year or EUR 1,667 monthly. However: the study is based on US data. For Europe, many experts recommend a more conservative rate of 3-3.5%. Our calculator shows you exactly how long your capital lasts at different withdrawal rates. --- ## Midijob Calculator (Midijob-Rechner) - [Calculator](https://rechenportal.de/midijob-rechner): Calculate Midijob net pay: transition zone, social insurance savings, pension - [English version](https://rechenportal.de/en/midijob-calculator) ### Blog Articles - [Midi Job 2026: What's Left After Deductions — and How Does It Differ From a Mini Job?](https://rechenportal.de/en/midijob-calculator/blog/midi-job-2026-net-salary-mini-job-comparison) *(pillar article)*: The comprehensive guide to midi jobs: net calculation, transition zone, social insurance, and comparison with mini jobs. - [Midi Job Thresholds 2026: What Happens at EUR 538 and EUR 2,000?](https://rechenportal.de/en/midijob-calculator/blog/midi-job-thresholds-2026-538-2000): Everything about transition zone thresholds: what changes at EUR 538 and EUR 2,000 and what to watch out for. - [Mini Job or Midi Job: Which Pays More Net at EUR 600?](https://rechenportal.de/en/midijob-calculator/blog/mini-job-midi-job-comparison-600-euro): Detailed comparison: what happens when you earn just above the mini job limit? Is a midi job worth it? - [Midi Job and Parental Allowance: What You Need to Know](https://rechenportal.de/en/midijob-calculator/blog/midi-job-parental-allowance-calculation-tips): How a midi job affects parental allowance, which calculation basis applies, and when it's worthwhile. - [Midi Job as Side Job: What Are the Rules With a Main Job?](https://rechenportal.de/en/midijob-calculator/blog/midi-job-side-job-main-job-combination): Rules for a midi job alongside a main job: social insurance obligations, tax class VI, and the most important pitfalls. - [Midi Job and Pension: Do You Really Build Pension in the Transition Zone?](https://rechenportal.de/en/midijob-calculator/blog/midi-job-pension-points-transition-zone): How pension building works in a midi job since the 2019 reform: pension points, entitlements, and comparison with mini jobs. ### FAQ - **What is a midi job and who qualifies?**: A midi job is an employment with monthly gross earnings between EUR 603.01 and EUR 2,000. In this so-called transition zone (formerly sliding scale), employees pay reduced social insurance contributions while retaining full benefit entitlements (health insurance, unemployment benefits, pension). The regulation applies to both regular and secondary employment in this salary range. - **How high are the deductions for a midi job?**: Deductions in a midi job increase gradually: at EUR 604 gross, the employee pays almost no social contributions, reaching normal levels at EUR 2,000. The exact amount depends on gross salary, additional health insurance contribution, age, and number of children. Our calculator computes the precise deductions for your individual situation. Additionally, income tax and possibly church tax apply depending on your tax class. - **What is the difference between a mini job and a midi job?**: With a mini job (up to EUR 603/month), the employee pays no taxes and no social contributions but also has no entitlements to sick pay, unemployment benefits, or pension benefits (unless voluntarily opting into pension insurance). With a midi job (EUR 603.01-2,000), you pay reduced, gradually increasing social contributions and receive full entitlements in all social insurance branches. Income tax also applies to midi jobs. - **How is the transition zone calculated?**: The calculation is based on Factor F, determined annually by the Federal Ministry of Labor. A reduced contribution assessment basis (BME) is derived from the actual gross salary. Total social insurance contributions are calculated on the BME, and the employee share is the difference between total contributions on the BME and the employer share on full gross. This means employees with lower midi job salaries pay significantly less than with regular employment. - **Do you build pension entitlements in a midi job?**: Yes! Since the 2019 reform, pension entitlements in a midi job are calculated based on full gross salary — not on the reduced contribution assessment basis. This means you pay lower contributions but receive pension points as if you were in fully insured employment. This is a significant advantage over a mini job, where no pension entitlements accrue without voluntary contributions. - **Can I have a midi job alongside a main job?**: Yes, a midi job alongside a main job is possible. However, both employments are combined for social insurance purposes. This means both jobs are fully subject to social insurance, and the combined income is used for tax calculations. The midi job is typically taxed at tax class VI. A single mini job alongside the main job would often be more tax-efficient. - **What happens if my salary exceeds the EUR 2,000 threshold?**: If your monthly gross salary permanently exceeds EUR 2,000, you leave the transition zone and pay full social insurance contributions. The change takes effect from the month the threshold is exceeded. With occasional, unforeseeable fluctuations (e.g., overtime in one month), the midi job status remains as long as the regular salary stays within the transition zone. - **Am I entitled to sick pay in a midi job?**: Yes, in a midi job you are fully insured for health and entitled to sick pay from the 43rd day of incapacity (after 6 weeks of continued pay by the employer). Sick pay is approximately 70% of gross earnings, up to 90% of net earnings. This is a significant advantage over a mini job, which provides no sick pay entitlement. - **How does a midi job affect parental allowance?**: Parental allowance (Elterngeld) is calculated based on average net income over the 12 months before birth. Midi job income is fully included in the calculation, with the reduced contribution basis leading to more favorable net income. Basic parental allowance is 65-67% of lost net income (minimum EUR 300, maximum EUR 1,800). A midi job before birth can therefore positively impact the parental allowance amount. - **Do I need to file a tax return as a midi jobber?**: Filing a tax return is mandatory if you have additional income alongside the midi job, if you are married with tax class combination III/V, or if you have a tax-free allowance on your tax card. In many cases, voluntary filing is worthwhile because too much tax is often withheld through wage deductions — especially with tax class VI for a second job. --- ## Balcony Solar Calculator (Balkonkraftwerk-Rechner) - [Calculator](https://rechenportal.de/balkonkraftwerk-rechner): Calculate balcony solar: yield, payback, self-consumption, CO₂ savings - [English version](https://rechenportal.de/en/balcony-solar-calculator) ### Blog Articles - [Balcony Solar 2026: Is It Really Worth It? The Complete Guide](https://rechenportal.de/en/balcony-solar-calculator/blog/balcony-solar-2026-guide) *(pillar article)*: Everything you need to know about balcony solar: costs, yield, legal situation, battery storage, and payback at a glance. - [Balcony Solar South vs. East/West: Which Orientation Yields More?](https://rechenportal.de/en/balcony-solar-calculator/blog/balcony-solar-orientation-comparison): How orientation affects yield and why west/east balconies can still be profitable. - [Balcony Solar with Battery: Is the Extra Cost Worth It?](https://rechenportal.de/en/balcony-solar-calculator/blog/balcony-solar-battery-comparison): When a battery storage pays off for balcony solar and when you're better off without one. - [Balcony Solar as a Tenant: What's Allowed in 2026?](https://rechenportal.de/en/balcony-solar-calculator/blog/balcony-solar-tenant-rights-2026): Current legal situation for tenants: privileged measures, landlord rights, and registration requirements. - [Balcony Solar Payback: How Long It Really Takes](https://rechenportal.de/en/balcony-solar-calculator/blog/balcony-solar-payback-calculation): Realistic payback periods for different balcony solar configurations with calculation examples. - [Balcony Solar Subsidies 2026: Which Grants Are Still Available](https://rechenportal.de/en/balcony-solar-calculator/blog/balcony-solar-subsidies-2026): Current subsidy programs for balcony solar: municipal grants, state funding, and tips for applying. ### FAQ - **How much does a balcony solar system cost in 2026?**: A simple 400-watt balcony solar system costs between EUR 250 and 400 in 2026. The popular 800-watt variant with two modules is EUR 500 to 700. Since 2023, Germany has a 0% VAT rate on all components of solar systems under 30 kWp, making the purchase particularly affordable. You may additionally need EUR 50-150 for installation if you don't do it yourself. Many municipalities offer subsidies between EUR 50 and 500. - **How much electricity does an 800W balcony solar system generate?**: An 800-watt balcony solar system generates between 500 and 900 kWh of electricity per year, depending on location, orientation, and tilt. In southern Germany (Bavaria, Baden-Wuerttemberg) with optimal south-facing orientation and 30-degree tilt, up to 900 kWh is possible. With typical balcony mounting (vertical, facing south), a realistic figure is about 550-650 kWh. This covers about 15-25% of electricity needs for an average 3-person household. - **Do I need permission for a balcony solar system?**: Since April 2024, the approval process has been greatly simplified. You no longer need approval from the grid operator -- just a free registration in the Marktstammdatenregister (Market Master Data Register) of the Federal Network Agency. The previous registration requirement with the grid operator has been eliminated completely. As a tenant, since October 2024, you have a legal right to install a balcony solar system as a privileged measure. - **Is a battery storage worth it for balcony solar?**: Economically, a battery storage often doesn't pay off for balcony solar systems yet. A typical 2 kWh battery costs EUR 500-1,000 and increases self-consumption by about 15-25 percentage points. The additional annual savings are about EUR 40-80. The payback period for the battery alone is therefore 8-15 years -- with a lifespan of 10-15 years. A battery makes more sense if you use little electricity during the day and want to use self-generated power in the evening. - **Can my landlord prohibit a balcony solar system?**: Since October 2024, installing a balcony solar system is considered a privileged structural modification under German law. This means your landlord generally cannot prohibit the installation. They can only influence the manner of installation -- for example, for reasons of monument protection or structural integrity. In case of disputes, consulting a tenant association is recommended. For condominiums, the owners' association must approve, though there is a legal right to approval. - **How do I register a balcony solar system?**: Registration has been greatly simplified since 2024. You only need to register your balcony solar system in the Marktstammdatenregister (MaStR) of the Federal Network Agency. This is free and can be done online at mastr.bundesnetzagentur.de. You'll need: information about your system (power, location, commissioning date) and your personal data. The previous registration with the grid operator and meter registration are no longer required. A modern bidirectional meter will be installed free of charge by the grid operator if needed. - **What orientation is optimal for balcony solar?**: The optimal orientation is south with a tilt angle of 30-35 degrees. Southwest and southeast still achieve about 95% of optimal yield -- excellent values. West and east orientations still deliver about 80%. A balcony mounting (vertical, i.e., 90 degrees) achieves about 70% of the optimum with south-facing orientation. Even with non-optimal orientation, a balcony solar system can be worthwhile because acquisition costs are low. - **How long does a balcony solar system last?**: Solar modules typically have a performance guarantee of 25-30 years. After 25 years, they still deliver at least 80% of their original output (degradation of about 0.5% per year). The inverter has a typical lifespan of 10-15 years and may need to be replaced once (cost: EUR 50-150). Overall, you can expect a useful life of 20-30 years, with a typical 800-watt system reaching payback after 4-8 years. - **Is there still 0% VAT on balcony solar systems?**: Yes! Since January 1, 2023, Germany has a 0% VAT rate on the purchase and installation of solar systems under 30 kWp -- this includes all balcony solar systems. This applies to modules, inverters, mounting systems, cables, and accessories. Battery storage systems are also VAT-free. This regulation is currently indefinite and makes balcony solar systems particularly attractive. There is no VAT obligation for feed-in from systems under 30 kWp. - **Can I install balcony solar on a flat roof?**: Yes, flat roofs are actually excellent for balcony solar systems. With mounting brackets, modules can be set up at the optimal 30-35 degree angle, increasing yield by up to 40% compared to vertical balcony mounting. Make sure the installation is wind-resistant -- either through ballasting (weighting with concrete slabs) or bolting. On flat roofs of rental buildings, you need the landlord's permission, which they can hardly refuse as it is a privileged measure. --- ## Heat Pump Calculator (Wärmepumpe-Rechner) - [Calculator](https://rechenportal.de/waermepumpe-rechner): Calculate heat pump: costs, BAFA subsidies, payback, CO₂ savings - [English version](https://rechenportal.de/en/heat-pump-calculator) ### Blog Articles - [Heat Pump 2026: Costs, Subsidies & When It Really Pays Off — The Independent Guide](https://rechenportal.de/en/heat-pump-calculator/blog/heat-pump-costs-subsidies-2026-guide) *(pillar article)*: The comprehensive guide to heat pump costs, BAFA subsidies 2026, operating costs, and payback period. Independent and manufacturer-neutral. - [BAFA Heat Pump Subsidy 2026: All Bonuses and How to Stack Them](https://rechenportal.de/en/heat-pump-calculator/blog/bafa-heat-pump-subsidy-2026-bonuses): Base subsidy, climate bonus, income bonus — up to 70% funding. How to optimally combine the BAFA bonuses. - [Heat Pump Seasonal COP: What It Means and What's a Good Value](https://rechenportal.de/en/heat-pump-calculator/blog/heat-pump-seasonal-cop-explained): The seasonal COP is the most important metric for heat pumps. Learn what good values are and how to improve your building's COP. - [Air-Source vs. Ground-Source Heat Pump: Which Is Better for My Home?](https://rechenportal.de/en/heat-pump-calculator/blog/air-source-vs-ground-source-heat-pump-comparison): Costs, efficiency, space requirements, and subsidies compared directly. How to find the right heat pump type. - [Combining a Heat Pump with Solar Panels: How It Pays Off](https://rechenportal.de/en/heat-pump-calculator/blog/heat-pump-solar-panels-combination-savings): Optimize self-consumption, reduce electricity costs, save CO2 — why solar panels and heat pumps are the perfect team. - [Heat Pump in Old Buildings: What Needs Renovation First?](https://rechenportal.de/en/heat-pump-calculator/blog/heat-pump-old-building-renovation-requirements): Insulation, radiators, flow temperature — what requirements an old building must meet for a heat pump. ### FAQ - **How much does a heat pump cost including installation?**: Total costs depend on the heat pump type: An air-source heat pump costs €15,000–25,000 including installation, a ground-source probe €20,000–35,000, and a water-source heat pump €25,000–40,000. Additional costs may include radiator replacement, hydraulic balancing, and buffer storage. BAFA subsidies (30–70%) significantly reduce net costs. - **How much is the BAFA subsidy for heat pumps in 2026?**: The BAFA base subsidy is 30% of eligible costs (max. €30,000). Additional bonuses include the Climate Speed Bonus (+20%) when replacing old fossil heating, and the Income Bonus (+30%) for household income ≤ €40,000/year. A maximum combined subsidy rate of 70% is possible, equaling up to €21,000. - **What is the seasonal COP and why is it so important?**: The seasonal COP indicates how much heat a heat pump produces per kilowatt-hour of electricity used — measured over a full year. A COP of 3.5 means: 1 kWh of electricity produces 3.5 kWh of heat. The higher the COP, the lower the electricity costs. Good values: air-source 2.8–3.5, ground-source 3.5–4.5, water-source 4.0–5.0. - **Is a heat pump worthwhile in an old building?**: Yes, a heat pump can also be worthwhile in an old building — provided insulation is at least average and flow temperatures are below 55°C. Important steps: insulating the building envelope, possibly replacing small radiators with larger ones or underfloor heating, and hydraulic balancing. For poorly insulated old buildings (pre-1970), insulation should come first. - **How much electricity does a heat pump use per year?**: Electricity consumption equals heating demand divided by COP. A typical single-family home with 20,000 kWh heating demand and a COP of 3.5 uses about 5,700 kWh of electricity per year. At 30 ct/kWh, that's about €1,700 in electricity costs — significantly less than gas (€2,400) or oil (€2,200). - **Can I combine the BAFA bonuses (climate + income)?**: Yes, the bonuses are combinable! Base subsidy (30%) + Climate Speed Bonus (20%) + Income Bonus (30%) = theoretically 80%, but there's a cap at 70%. For the climate bonus, you must replace a functioning fossil heating system (at least 20 years old). The income bonus applies with a maximum taxable household income of €40,000. - **Do I need hydraulic balancing?**: Yes, hydraulic balancing is essential for efficient heat pump operation and has been mandatory for subsidized installations since 2024. It optimally adjusts each radiator so heat is distributed evenly and flow temperature stays as low as possible. Cost: €500–1,500, also eligible for subsidies. - **How long until a heat pump pays for itself?**: Payback time depends on net costs, annual savings, and energy price increases. Typical values: With 30% subsidy replacing gas: 8–12 years. With 50–70% subsidy: 4–8 years. Rising gas prices (3%/year) further shorten the payback period. - **Heat pump and solar: How much more can I save?**: With a PV system, heat pump electricity costs drop by 20–40%, depending on self-consumption share. At 30% self-consumption and a PV electricity cost of 8 ct/kWh, the effective electricity price drops from 30 to about 23.4 ct/kWh. Additionally, PV electricity reduces CO2 emissions to nearly zero for the self-consumed portion. - **Which heat pump is right — air, ground, or water source?**: Air-source is cheapest (€15,000–25,000) and easiest to install, but has the lowest COP (2.8–3.5). Ground-source offers higher efficiency (COP 3.5–4.5) but needs space for ground probes or surface collectors. Water-source has the highest COP (4.0–5.0) but requires groundwater access and water rights permits. --- ## Company Bike Calculator (Dienstrad-Rechner) - [Calculator](https://rechenportal.de/dienstrad-rechner): Calculate company bike leasing: salary sacrifice savings, employer benefits - [English version](https://rechenportal.de/en/company-bike-calculator) ### Blog Articles - [Company Bike 2026: How Much Do You Really Save Through Salary Sacrifice?](https://rechenportal.de/en/company-bike-calculator/blog/company-bike-2026-salary-sacrifice-tax-savings) *(pillar article)*: Everything about company bike salary sacrifice in 2026: tax savings, social insurance savings, benefit-in-kind, and what has changed for employees and employers. - [Company Bike Salary Sacrifice: How It Works Step by Step](https://rechenportal.de/en/company-bike-calculator/blog/company-bike-salary-sacrifice-explained): Step-by-step guide to company bike salary sacrifice: application, framework agreement, tax treatment, and what appears on your payslip. - [Company Bike After Lease End: Buy Out, Extend, or Return?](https://rechenportal.de/en/company-bike-calculator/blog/company-bike-lease-end-buyout-options): What happens after 36 months of leasing? Buyout at residual value, lease extension, or return – which option is best and when. - [E-Bike as Company Bike: Is It Worth More Than a Regular Bicycle?](https://rechenportal.de/en/company-bike-calculator/blog/ebike-company-bike-comparison-regular-bicycle): E-bike vs. bicycle as a company bike: tax differences, everyday benefits, and which type is most worthwhile for whom. - [Company Bike for Self-Employed: Is It Possible — and How?](https://rechenportal.de/en/company-bike-calculator/blog/company-bike-self-employed-freelancers): Can freelancers and self-employed use a company bike? Yes – here's how leasing, business expenses, and tax treatment work. - [Employers: What Does a Company Bike Program Really Cost — and What Are the Benefits?](https://rechenportal.de/en/company-bike-calculator/blog/company-bike-program-employer-costs-benefits): Cost-benefit analysis of a company bike program for employers: SI savings, employee retention, sustainability goals, and implementation. ### FAQ - **How much do I save with a company bike?**: Savings depend on your salary, tax class, and bike price. Typically you save 15-40% compared to a private purchase. For an e-bike at €3,000 RRP with a €3,500 gross salary in tax class I, effective monthly costs are around €55-70 instead of the full lease rate of approx. €109. Over 36 months, this means savings of several hundred euros compared to the retail price. - **What is the benefit-in-kind for company bikes?**: Since 2020, the benefit-in-kind for bicycles and e-bikes (pedelecs up to 25 km/h) through salary sacrifice is only 0.25% of the RRP per month. For a €3,000 bike, that's €7.50 monthly that must be taxed additionally. S-pedelecs (over 25 km/h) are treated like company cars with the 1% rule. If the bike is provided on top of salary (no salary sacrifice), the benefit-in-kind for regular bikes and e-bikes is zero. - **What happens when the lease ends?**: After the lease term (usually 36 months), you have three options: 1) Buy the bike at residual value (typically 18% of RRP, e.g. €540 for a €3,000 bike). 2) Extend the lease at reduced terms. 3) Return the bike. Most users choose to buy, as the residual value is well below the actual market value. - **Is a company bike worth it on a low salary?**: Yes, you can still save even on a lower salary, though the tax savings are smaller. From around €2,000 gross salary, company bike leasing is usually worthwhile. Note however that salary sacrifice reduces your social-insurance-liable income, which can have a minor long-term impact on pension and sick pay entitlements. - **What is the difference between E-Bike and S-Pedelec for company bikes?**: E-bikes (pedelecs) assist up to 25 km/h and are classified as bicycles – no license, no mandatory insurance, and only 0.25% benefit-in-kind. S-pedelecs assist up to 45 km/h and are classified as mopeds – requiring a license plate, insurance, and 1% benefit-in-kind (like a company car). From a tax perspective, e-bikes are significantly cheaper. - **Can I use the company bike privately?**: Yes, private use is explicitly allowed and encouraged. This is one of the major advantages over traditional company car arrangements. You can use the company bike for commuting, shopping, sports, and leisure – without additional costs or restrictions. - **Does salary sacrifice affect my pension?**: Yes, salary sacrifice reduces your gross income subject to social insurance. This means you pay less into the pension system, which can affect your future pension entitlements. However, with a lease rate of €100 monthly over 36 months, the impact on your eventual pension is minimal (a few euros less per month). The immediate savings far outweigh this in most cases. - **What does the company bike cost the employer?**: With pure salary sacrifice (no employer subsidy), the company bike costs the employer nothing – they actually save money, as they don't pay social insurance contributions on the converted amount (about 20% of the conversion amount). The employer only has the administrative effort for the framework agreement with the leasing provider. A voluntary employer subsidy is an attractive benefit that is tax-deductible as a business expense. - **Can I claim commute allowance despite having a company bike?**: Yes! The commute allowance (since 2026 a flat €0.38 per km from the first km) can be claimed regardless of whether you use a company bike. This applies to all means of transport. So in addition to savings from salary sacrifice, you can deduct the commuter allowance in your tax return. - **How does insurance work with a company bike?**: Most leasing providers offer all-inclusive packages that include theft insurance, comprehensive coverage, pick-up service, and wear-and-tear repairs. Costs are typically €5-15 per month depending on the bike value and coverage scope. These costs are usually included in the monthly lease rate. --- ## Health Insurance Comparison Calculator (GKV-PKV-Rechner) - [Calculator](https://rechenportal.de/gkv-pkv-rechner): Compare statutory vs. private health insurance: costs, long-term projection - [English version](https://rechenportal.de/en/health-insurance-calculator) ### Blog Articles - [Public vs Private Health Insurance in Germany 2026: The Honest Comparison — Who Benefits from Private Insurance?](https://rechenportal.de/en/health-insurance-calculator/blog/public-private-insurance-germany-2026-honest-guide) *(pillar article)*: The comprehensive comparison: GKV contributions, PKV calculations, JAEG, family insurance, civil servants and the return trap. - [GKV Additional Contribution 2026: Which Health Insurer Is Cheapest?](https://rechenportal.de/en/health-insurance-calculator/blog/gkv-additional-contribution-2026-cheapest): Comparison of additional contributions 2026: From 0.7% to 3.28%. Which insurer saves the most and what to watch for when switching. - [Private Insurance as an Employee: When Can You Switch and When Should You?](https://rechenportal.de/en/health-insurance-calculator/blog/private-insurance-employee-switch-requirements): JAEG threshold, requirements and when switching really makes sense. With calculation example. - [Switching Back from Private to Public Insurance: Is It Still Possible?](https://rechenportal.de/en/health-insurance-calculator/blog/private-to-public-insurance-switch-options): The return trap: what options exist, which age limits apply and what's realistic. - [Family Insurance in GKV: Who Is Covered for Free and What Are the Limits?](https://rechenportal.de/en/health-insurance-calculator/blog/family-insurance-gkv-requirements-limits): Everything about family insurance: requirements, income limits, children and spouses. - [Private Insurance in Old Age: Why Premiums Rise and What Age Provisions Do](https://rechenportal.de/en/health-insurance-calculator/blog/private-insurance-age-premiums-provisions): The truth about PKV premiums in old age: increase rates, age provisions and premium relief tariffs. ### FAQ - **What is the difference between public and private health insurance?**: Public health insurance (GKV) is the solidarity system: contributions are based on income, not age or health. Family members without income are covered for free. Private health insurance (PKV) calculates individual premiums based on age, health status, and chosen coverage. Each person needs their own contract. GKV offers standardized basic benefits, while PKV allows individual packages with often shorter waiting times and chief physician treatment. - **At what salary can I switch to private insurance?**: As an employee, you must exceed the annual earnings threshold (JAEG) to switch to PKV. In 2026, this is EUR 77,400 gross per year (EUR 6,450/month). Self-employed and civil servants can choose freely regardless of income. Important: the salary must permanently exceed the JAEG, not just temporarily. - **How much is the public insurance contribution in 2026?**: The general GKV contribution rate in 2026 remains 14.6% of gross income (up to the assessment ceiling of EUR 69,750/year). Additionally, each insurer charges an individual additional contribution averaging 2.9% in 2026. Employer and employee split both contributions equally. Long-term care insurance adds 3.4% base rate (childless persons over 23 pay a 0.6% surcharge). - **Are children really covered for free in public insurance?**: Yes, children can be covered for free through family insurance in the GKV as long as they have no income above the marginal employment threshold. This applies until age 18, or until 25 if in education or university. In PKV, each child needs their own contract — which can become expensive with multiple children. - **Why do private insurance premiums rise so much with age?**: PKV premiums rise for two reasons: medical utilization increases with age, and premium adjustments become necessary due to rising healthcare costs and medical advances. While PKV insurers build age provisions (Alterungsrueckstellungen), these often aren't sufficient to fully offset premium increases. On average, PKV premiums rise about 3% annually. - **Can I join public insurance as a freelancer?**: Yes, freelancers can voluntarily remain in or return to GKV if they meet the requirements. The minimum contribution is based on a fictional minimum assessment basis. However, self-employed pay the full contribution without an employer share. Whether GKV or PKV is cheaper depends on income, age, health, and family situation. - **Can I switch back from private to public insurance?**: Switching back from PKV to GKV is only possible under specific conditions: your income must fall below the JAEG (e.g., through part-time work or job change), or you become unemployed. After age 55, returning to GKV is virtually impossible — even with declining income. This age limit is legally enshrined with very few exceptions. - **Why is private insurance so cheap for civil servants?**: Civil servants receive Beihilfe from their employer: 50% of medical costs are covered (70% for married, 80% for children). PKV only needs to cover the remainder, resulting in significantly lower premiums. Since GKV doesn't account for Beihilfe and charges full contributions, PKV is almost always more economical for civil servants. - **What happens to my private insurance if I become unemployed?**: When receiving unemployment benefits (ALG-I), you typically become mandatory GKV-insured, with the employment agency paying contributions. The same applies for ALG-II (Buergergeld). Those who opt out of mandatory insurance can stay in PKV, with the agency paying a subsidy equal to the GKV contribution. After unemployment, you may be able to return to PKV. - **Is a high deductible in private insurance worth it?**: A higher deductible significantly reduces monthly PKV premiums: with EUR 1,200 deductible, you typically save 20-25% compared to no deductible. Whether it's worthwhile depends on your health. If you rarely visit the doctor, a high deductible can pay off. But in years with treatment needs, you pay more out of pocket. A middle option (EUR 300-600) often offers the best compromise. --- ## Sick Pay Calculator (Krankengeld-Rechner) - [Calculator](https://rechenportal.de/krankengeld-rechner): Calculate sick pay: continued pay, block period, exhaustion of benefits - [English version](https://rechenportal.de/en/sick-pay-calculator) ### Blog Articles - [Sick Pay in Germany 2026: What Do I Get During Long-Term Illness?](https://rechenportal.de/en/sick-pay-calculator/blog/sick-pay-germany-2026-guide) *(pillar article)*: Everything about continued pay, sick pay amounts, social insurance deductions, block period, and benefit exhaustion: how to secure your income during long-term illness. - [Continued Pay: When Do I Lose My Right to 6 Weeks?](https://rechenportal.de/en/sick-pay-calculator/blog/continued-pay-entitlement-loss-rules): Pre-existing conditions, probation periods, fixed-term contracts: when your continued pay entitlement may be reduced or excluded. - [Sick Pay Calculation: How the Amount Is Determined Step by Step](https://rechenportal.de/en/sick-pay-calculator/blog/sick-pay-calculation-step-by-step): Standard earnings, 70% limit, 90% net cap, and social insurance deductions: the complete calculation logic with concrete examples. - [Sick for 78 Weeks: What Comes After Sick Pay Ends?](https://rechenportal.de/en/sick-pay-calculator/blog/sick-78-weeks-exhaustion-options): Benefit exhaustion, seamless transition rule, disability pension, and reintegration: all options after sick pay ends. - [Sick Pay and Termination: What Happens to My Entitlement?](https://rechenportal.de/en/sick-pay-calculator/blog/sick-pay-termination-entitlement-rules): Termination during illness, sickness-related dismissal, and sick pay after job loss: your rights at a glance. - [Burnout and Sick Pay: What Affected Employees Need to Know](https://rechenportal.de/en/sick-pay-calculator/blog/burnout-sick-pay-entitlements-tips): Sick leave for burnout, continued pay, sick pay, and reintegration: the complete guide for affected employees. ### FAQ - **How much is sick pay in Germany?**: Sick pay (Krankengeld) amounts to 70% of your gross salary, but is capped at a maximum of 90% of your net salary. Additionally, it cannot exceed the health insurance contribution assessment ceiling (2026: EUR 191.10/day). After deductions for health and care insurance, the net sick pay typically amounts to about 55-65% of your previous net income. - **How long do I get continued pay from my employer?**: Employees are entitled to 6 weeks (42 calendar days) of continued pay from their employer for the same illness. The prerequisite is at least 4 weeks of uninterrupted employment. For a new, different illness, the 6 weeks start fresh. If the same illness recurs within 12 months, the periods are added together. - **What happens after 6 weeks of illness?**: After 6 weeks, continued pay from the employer ends and the health insurer takes over with sick pay (Krankengeld). This is lower than the regular salary and is paid for a maximum of 78 weeks (546 days) within a 3-year block period. Your employment relationship generally continues during this time. - **How is sick pay calculated?**: The calculation follows three steps: 1) The standard earnings are determined (gross salary divided by 360, times 30). 2) Two caps are calculated: 70% of gross standard earnings and 90% of net standard earnings. 3) The gross sick pay is the lower of the two values, limited to the contribution assessment ceiling. Health and care insurance contributions are then deducted. - **What deductions are made from sick pay?**: Health insurance contributions (half rate including supplementary contribution) and care insurance contributions (half rate, potentially with childless surcharge) are deducted from gross sick pay. Pension and unemployment insurance contributions are paid by the health insurer, not by the insured person. Sick pay is not subject to income tax but is subject to the progression proviso. - **What happens after 78 weeks of sick pay?**: After 78 weeks, the sick pay entitlement ends (benefit exhaustion). The health insurer notifies the employment agency. Affected individuals should check: 1) Unemployment benefits during incapacity under Section 145 SGB III, 2) Disability pension application, 3) Gradual reintegration (Hamburg Model), 4) Rehabilitation application. Register with the employment agency at least 3 months before exhaustion. - **Do different illnesses count together?**: No, for a new illness independent of the first one, a new entitlement to 6 weeks continued pay and up to 78 weeks sick pay arises. However, if the same illness recurs within 12 months, the periods are added together. For the block period (3 years), all sick pay periods for the same diagnosis are cumulated. - **Do part-time employees also receive sick pay?**: Yes, part-time employees are also entitled to sick pay, provided they have statutory health insurance (with sick pay entitlement). The calculation is based on the actual gross and net salary. Mini-jobbers (up to EUR 603/month) without their own GKV membership have no sick pay entitlement. - **What is the block period for sick pay?**: The block period is a 3-year timeframe starting from the first sick pay day for a specific illness. Within these 3 years, a maximum of 78 weeks of sick pay can be paid for the same diagnosis. After the block period expires, a new entitlement arises, provided the insured person was gainfully employed or available to the labor market for at least 6 months in between. - **Can I be terminated while receiving sick pay?**: Yes, illness does not automatically protect against termination. The employer can issue a sickness-related termination under certain conditions, such as frequent short-term illnesses or long-term illness with negative prognosis. However, the sick pay entitlement continues even after termination, as long as statutory health insurance membership continues. --- ## Sleep Cycle Calculator (Schlafzyklus-Rechner) - [Calculator](https://rechenportal.de/schlafzyklus-rechner): Calculate optimal bedtime: sleep cycles, hypnogram, sleep quality - [English version](https://rechenportal.de/en/sleep-cycle-calculator) ### Blog Articles - [Understanding Sleep Cycles: When You Should Wake Up to Feel Rested](https://rechenportal.de/en/sleep-cycle-calculator/blog/understanding-sleep-cycles-wake-up-rested) *(pillar article)*: The four sleep phases explained, the 90-minute rule and why you sometimes feel more tired after 8 hours than after 6. - [Waking Up at 6 AM: When Should I Go to Bed?](https://rechenportal.de/en/sleep-cycle-calculator/blog/wake-up-6am-when-to-sleep): The ideal bedtimes for a 6 AM wake-up, based on sleep cycles and fall-asleep delay. - [Power Nap: The Perfect Duration for a Midday Nap](https://rechenportal.de/en/sleep-cycle-calculator/blog/power-nap-perfect-duration): 20, 30 or 90 minutes? Why the length of your nap determines whether you feel refreshed or groggy afterward. - [Sleep Deprivation: What Happens After 1, 3, and 7 Nights?](https://rechenportal.de/en/sleep-cycle-calculator/blog/sleep-deprivation-effects-body): The alarming effects of sleep deprivation on brain, immune system and metabolism -- and how to counteract them. - [REM Sleep: Why the Dream Phase Matters So Much](https://rechenportal.de/en/sleep-cycle-calculator/blog/rem-sleep-dream-phase-important): What happens during REM sleep, why it's crucial for learning and creativity, and how to promote it. - [Learning to Wake Up Early: 7 Strategies for Night Owls](https://rechenportal.de/en/sleep-cycle-calculator/blog/wake-up-early-strategies-night-owls): From chronotype to morning routine: practical tips to wake up early and feel great even as a night owl. ### FAQ - **What is a sleep cycle and how long does it last?**: A sleep cycle consists of four phases: NREM 1 (falling asleep, ~5 min), NREM 2 (light sleep, ~25 min), NREM 3 (deep sleep, ~25 min) and REM (dream sleep, ~25 min). A complete cycle lasts about 90 minutes on average for adults, but can vary individually between 75 and 120 minutes. - **Why do I still feel tired after 8 hours of sleep?**: If your alarm goes off in the middle of a deep sleep phase (NREM 3), you wake up groggy and tired -- regardless of how long you slept in total. This is called sleep inertia. The sleep cycle calculator helps you wake up at the end of a cycle when you're in the lightest sleep. - **What is sleep inertia and how do I avoid it?**: Sleep inertia is the groggy, disoriented feeling upon waking. It occurs when your alarm goes off during deep sleep (NREM 3). Avoid it by timing your wake-up to fall at the end of a sleep cycle -- which is exactly what our calculator does. - **How long should the fall-asleep delay be?**: Most adults take 10-20 minutes to fall asleep. Our default of 14 minutes is a good average. If you regularly lie awake for more than 20 minutes, increase the value. If you fall asleep almost immediately, you might be sleep-deprived. - **Is the 90-minute rule really accurate?**: 90 minutes is an average for adults. In reality, cycle length varies individually between 75 and 120 minutes and even within a single night. The calculator lets you adjust the cycle length. Experiment with different values to find your personal rhythm. - **How much sleep do I need at my age?**: The National Sleep Foundation recommends: Babies (0-1 year) 12-17 hours, Toddlers (1-3) 11-14 hours, Children (3-13) 9-11 hours, Teenagers (14-17) 8-10 hours, Adults (18-64) 7-9 hours and Seniors (65+) 7-8 hours per night. - **What happens during the REM phase?**: During REM (Rapid Eye Movement) sleep, the eyes move rapidly behind closed lids. This is where the most intense dreams occur. The brain consolidates memories, processes emotions and promotes creative thinking. REM sleep increases throughout the night -- the longest REM phases occur in the last cycles. - **Is it better to go to bed early or late?**: More important than the exact time is consistency. Your body has an internal clock (circadian rhythm). Go to bed and wake up at the same time every day -- even on weekends. This optimally synchronizes your sleep-wake cycle. - **How long should a power nap be?**: A 15-20 minute power nap is ideal: you stay in light sleep (NREM 1-2) and wake up refreshed. Avoid 30-60 minute naps -- you reach deep sleep and wake up groggy. If you want to sleep longer, plan 90 minutes for a full cycle. - **Can I train my sleep cycle?**: You can train your circadian rhythm through consistent sleep times, morning light exposure and regular meals. After 1-2 weeks, your body adapts and you may even wake up without an alarm. Sleep hygiene (no blue light, cool bedroom, no caffeine in the evening) supports the process. --- ## Breakup or Wedding? (Trennung oder Traualtar?) - [Calculator](https://rechenportal.de/beziehungsrechner): The relationship check: How stable is your relationship really? - [English version](https://rechenportal.de/en/relationship-quiz) ### Blog Articles - [Strengthen Your Relationship: What Happy Couples Do Differently](https://rechenportal.de/en/relationship-quiz/blog/strengthen-relationship-happy-couples) *(pillar article)*: Science-backed strategies for a happy partnership — from communication to intimacy. - [Gottman's Four Horsemen: Recognizing Relationship Killers](https://rechenportal.de/en/relationship-quiz/blog/gottman-four-horsemen-relationship-killers): Criticism, contempt, stonewalling, defensiveness — the 4 communication patterns that destroy relationships and how to stop them. - [Divorce Rate in Germany: Facts & Trends 2026](https://rechenportal.de/en/relationship-quiz/blog/divorce-rate-germany-statistics): Current divorce statistics, regional differences, and the surprising reasons why the rate is declining. - [Arguments in Relationships: When Is It Normal, When Too Much?](https://rechenportal.de/en/relationship-quiz/blog/arguments-relationship-normal-too-much): How much arguing is healthy? Recognize warning signs and learn to argue constructively. - [Money and Love: Why Finances Are the #1 Breakup Reason](https://rechenportal.de/en/relationship-quiz/blog/money-love-finances-breakup-reason): Financial arguments are the #1 breakup reason. The 3-account model and other solutions for couples. - [Couples Therapy: When Is It Worth It and What Does It Cost?](https://rechenportal.de/en/relationship-quiz/blog/couples-therapy-costs-experiences): What does couples therapy cost in Germany? When is the right time and what can you expect? - [Love Languages: Using the 5 Languages of Love in Daily Life](https://rechenportal.de/en/relationship-quiz/blog/love-languages-five-languages-of-love): Which love language do you speak? How to better understand your partner's needs. ### FAQ - **What is the divorce rate in Germany?**: Germany's current divorce rate is approximately 35-39%, meaning roughly one in three marriages ends in divorce. The rate has been slightly declining since 2003, suggesting couples today marry more consciously. The average marriage duration before divorce is about 15 years. - **What are the most common breakup reasons?**: The top 5 breakup reasons are: 1) Financial differences (money arguments), 2) Communication problems (stonewalling, criticism), 3) Infidelity, 4) Growing apart (different development), 5) Lack of intimacy. Interestingly, research shows it's not the argument itself that's the problem, but HOW you argue. - **Can you save a relationship?**: Yes, in most cases a relationship can be saved — if BOTH partners are willing to work on it. Gottman research shows that even severely strained couples can significantly improve their relationship with the right tools (active listening, I-statements, appreciation). The key: act early, not when it's 'too late.' - **What is the Gottman method?**: The Gottman method is based on over 40 years of research by Dr. John Gottman. He identified the 'Four Horsemen of the Apocalypse' (criticism, contempt, stonewalling, defensiveness) as the main destroyers of relationships. The method teaches couples to recognize these patterns and replace them with positive communication. Gottman can predict with 93% accuracy whether couples will stay together. - **How important is laughing together?**: Very important! Research shows that couples who regularly laugh together report significantly higher relationship satisfaction. Humor reduces stress, strengthens emotional connection, and helps de-escalate conflicts. Couples who share 'inside jokes' report stronger bonds. - **Are arguments in relationships normal?**: Yes, absolutely! Occasional conflicts are actually a sign of a healthy relationship — they show that both partners express their needs. Gottman found that 69% of all couple conflicts are never resolved but need to be 'managed.' What matters isn't WHETHER you argue, but HOW. - **When should you consider couples therapy?**: The sooner, the better! Most couples wait an average of 6 years too long. Warning signs include: persistent arguments about the same topics, emotional distance, breach of trust, or when one (or both) is considering separation. Couples therapy costs €80-150 per session and is an investment in your future. - **How do kids affect relationships?**: Children are an enrichment but also a stress test. Studies show that relationship satisfaction often drops in the first years after birth — due to sleep deprivation, role conflicts, and less couple time. Couples who deliberately reserve time for each other and openly discuss challenges navigate this phase better. - **What age gaps work?**: Statistically, couples with an age gap of 0-5 years have the lowest separation probability. At 6-10 years, the risk increases by about 18%, at 10+ years by about 39%. But: statistics aren't destiny. Many couples with large age gaps have happy relationships — shared values and life plans are what matter most. - **What makes a happy relationship?**: According to research, the most important factors are: 1) Emotional safety and trust, 2) Respectful communication, 3) Shared values and future visions, 4) Physical and emotional intimacy, 5) Individual freedom within the relationship, 6) Ability to resolve conflicts constructively, 7) Humor and laughing together. --- ## Child Cost Calculator (Kinderkosten-Rechner) - [Calculator](https://rechenportal.de/kinderkosten-rechner): What does raising a child cost from 0-18? Childcare, clothing, education - [English version](https://rechenportal.de/en/child-cost-calculator) ### Blog Articles - [How Much Does a Child Cost in Germany? All Costs from 0-18](https://rechenportal.de/en/child-cost-calculator/blog/child-cost-germany) *(pillar article)*: Federal statistics, DKHW data and our own calculations: what parents really spend from birth to age 18. - [Kindergeld 2026: Amount, Application & Payment](https://rechenportal.de/en/child-cost-calculator/blog/kindergeld-amount-application): Everything about Kindergeld 2026: current amount, application process, payment dates and important changes. - [Parental Allowance: How Much Will You Get?](https://rechenportal.de/en/child-cost-calculator/blog/parental-allowance-calculation): Parental allowance calculation explained: basic, ElterngeldPlus and partnership bonus at a glance. - [Daycare Costs in Germany: State-by-State Comparison](https://rechenportal.de/en/child-cost-calculator/blog/daycare-costs-comparison): From free to 800 euros: what daycare costs in each state and which fee models exist. - [Financial Planning for Families: Budgeting with Children](https://rechenportal.de/en/child-cost-calculator/blog/family-financial-planning): Practical tips for family financial planning: from household budgets to savings plans and insurance. - [Single Parents & Finances: What Support Is Available?](https://rechenportal.de/en/child-cost-calculator/blog/single-parent-finances): Advance maintenance, child supplement, housing benefit and more: all support for single parents at a glance. - [Baby Essentials: What You Really Need and What It Costs](https://rechenportal.de/en/child-cost-calculator/blog/baby-essentials-cost-checklist): The honest baby essentials checklist: must-haves, nice-to-haves and what you can skip. ### FAQ - **What does a child cost per month?**: A child in Germany costs an average of 400 to 700 euros per month. Babies are around 290 euros (food, diapers, clothes), toddlers 300-400 euros (plus daycare fees), school children 350-500 euros and teenagers 500-700 euros. These amounts cover basic needs but not childcare or hobbies. With daycare, hobbies and proportional housing costs, a child can easily cost 800 to 1,200 euros per month. - **How much Kindergeld in 2026?**: Kindergeld in 2026 is a flat 259 euros per month per child. It is paid until the child's 18th birthday, or until 25 if in education or training. The application is made at the Family Benefits Office (Familienkasse). Payment is monthly and depends on the last digit of the Kindergeld number. - **What is the total cost from 0-18?**: According to the Federal Statistical Office, a child costs an average of around 165,000 euros from birth to age 18. With an upscale lifestyle, private school and many hobbies, this can reach 280,000 euros. Frugal families manage with 120,000 to 140,000 euros. Not included are income losses from parental leave and reduced working hours. - **How much does daycare cost?**: Daycare costs vary widely. Public daycare costs 0 to 400 euros per month depending on the city - in Berlin, Hamburg and some regions it's completely free. Private daycare charges 450 to 800 euros monthly. Childminder care runs about 600 euros. Fees are often income-dependent and decrease with more siblings. The national average is about 200 euros monthly. - **What minimum income for a child?**: There is no fixed minimum income for children. As a rule of thumb, after deducting rent and fixed costs, at least 500 to 800 euros per child should remain. With a household net of 2,500 euros and 800 euros rent, you can afford one child - but it will be tight. Government support like Kindergeld (259 euros), parental allowance, housing benefit and child supplement can significantly improve the situation. - **What government support for families?**: Key benefits include: Kindergeld (259 euros/month per child), parental allowance (65-100% of net income, max 1,800 euros, 12-14 months), child supplement (up to 292 euros/month for low income), housing benefit, Education and Participation package (BuT), advance maintenance for single parents (up to 272 euros/month), maternity benefit and tax-free allowances for children. - **How much more for a second child?**: The second child is not twice as expensive as the first. Through sibling synergies (passing down clothes, shared room until age 6, family rates for activities) you save about 20-30% compared to the first child. However, from the second child you often need a larger apartment, which costs an extra 120 to 350 euros per month depending on location. - **Need a bigger car?**: For one or two children, a normal car usually suffices. From three children, the back seat gets tight - then you need a station wagon or van, which can cost 100 to 200 euros more per month (leasing, insurance, fuel). Many urban families manage without a car, using cargo bikes, public transport and car sharing instead. - **How much to save for kids?**: Financial experts recommend saving 50 to 150 euros per month per child. Over 18 years at 5% return, this builds a portfolio of 17,000 to 52,000 euros by the 18th birthday. Popular options are ETF savings plans in the child's name (junior depot) or a classic savings account. Important: Secure your own retirement first, then save for children. - **What are the hidden costs of children?**: Often underestimated: income losses from parental leave and part-time work (often the biggest item), higher insurance costs (liability, possibly dental), constantly new clothes and shoes (children grow!), gifts for other children's birthdays, babysitter costs for going out, broken items (smartphones, furniture), and emotional strain that can translate into self-care spending. --- ## Startup Cost Calculator (Startup-Kosten-Rechner) - [Calculator](https://rechenportal.de/startup-kosten-rechner): Calculate startup costs: legal form, burn rate, runway, break-even - [English version](https://rechenportal.de/en/startup-cost-calculator) ### Blog Articles - [Startup Break-Even: When Will Your Startup Become Profitable?](https://rechenportal.de/en/startup-cost-calculator/blog/startup-break-even-calculator) *(pillar article)*: Fixed costs, variable costs, runway and unit economics — everything you need to calculate your break-even point. - [How to Calculate Burn Rate: How Long Your Money Lasts](https://rechenportal.de/en/startup-cost-calculator/blog/burn-rate-calculate-runway): Gross burn vs. net burn, runway formula, and 5 strategies to extend your runway. - [LTV:CAC Ratio Explained: The Most Important SaaS Metric](https://rechenportal.de/en/startup-cost-calculator/blog/ltv-cac-ratio-saas-explained): Why a ratio of at least 3:1 is the goal and how to correctly calculate LTV and CAC. - [Unit Economics for Founders: Are You Profitable Per Customer?](https://rechenportal.de/en/startup-cost-calculator/blog/unit-economics-founders-explained): Contribution margin and why growth without positive unit economics is deadly. - [Startup Funding in Germany: Bootstrapping to Series A](https://rechenportal.de/en/startup-cost-calculator/blog/startup-funding-germany): All funding options for German startups — from EXIST grants to angel investors and venture capital. - [Reduce Churn Rate: 7 Strategies for SaaS Startups](https://rechenportal.de/en/startup-cost-calculator/blog/reduce-churn-rate-saas-strategies): Why 5% monthly churn kills your SaaS startup and which measures actually work. - [Startup Costs in Germany: From GmbH Registration to Ongoing Expenses](https://rechenportal.de/en/startup-cost-calculator/blog/startup-costs-germany-founding): What does it really cost to start a company in Germany? All costs from notary to cloud server. ### FAQ - **What is the break-even point for a startup?**: The break-even point is when your startup generates more revenue than it incurs in costs — the moment you become profitable. More precisely: monthly profit (revenue minus fixed costs minus variable costs minus customer acquisition costs) turns positive for the first time. For SaaS startups, break-even typically occurs at 12–24 months; for more capital-intensive models, it can take significantly longer. - **How do you calculate burn rate?**: Burn rate is the amount your startup loses per month. There are two variants: Gross Burn Rate = all monthly expenses (salaries + rent + tools + marketing + other fixed costs). Net Burn Rate = Gross Burn minus incoming revenue. Net burn rate is the more relevant metric because it shows how much capital you actually consume per month. Runway = Starting Capital / Net Burn Rate = months until money runs out. - **What is a good LTV:CAC ratio?**: The rule of thumb is: an LTV:CAC ratio of at least 3:1 is the target for a healthy SaaS business. This means each customer generates at least three times their acquisition cost over their lifetime. A ratio below 1:1 means you spend more acquiring customers than they bring in — a clear warning sign. Above 5:1 suggests you are underinvesting in growth and could scale faster. - **How long until a startup becomes profitable?**: It depends heavily on the business model, burn rate, and growth. Bootstrapped SaaS startups with low costs can become profitable within 6–12 months. VC-funded startups often prioritize growth over profitability and deliberately take 3–5 years. E-commerce startups with high variable costs (COGS 40–60%) typically need higher revenue volumes for break-even. Our calculator shows you exactly when your model reaches break-even. - **What are unit economics?**: Unit economics describe the profitability of your business model at the level of a single unit — typically per customer or per transaction. Key metrics include: Contribution Margin = revenue per unit minus variable costs. Customer Lifetime Value (LTV) = total revenue per customer over their entire usage period. Customer Acquisition Cost (CAC) = total marketing and sales costs divided by new customers acquired. Positive unit economics mean: each additional customer brings in more than they cost. - **How much runway does a startup need?**: The rule of thumb: at least 12–18 months of runway after each funding round. Less than 6 months of runway is alarm level — you need to immediately cut costs or raise funding. Fundraising itself typically takes 3–6 months, so start your next round when you still have 9–12 months of runway. Bootstrapped startups should have enough capital for at least 12 months without revenue, or an alternative income stream (e.g., freelancing alongside the startup). - **What is customer churn and why does it matter?**: Customer churn is the percentage of customers who leave or cancel their subscription in a given period. A monthly churn rate of 5% sounds harmless, but means: over 12 months you lose 46% of your customers (1 - 0.95^12). At 10% monthly churn, it is 72%. Every lost customer must be replaced by a new one before you can even grow. That is why churn reduction is often more important than more marketing — you cannot solve a product-market fit problem with more advertising. - **How do you calculate Customer Lifetime Value (LTV)?**: LTV is calculated differently depending on the business model: For SaaS/subscription: LTV = Average revenue per customer per month (after variable costs) divided by monthly churn rate. Example: €50 margin/month at 5% churn = LTV of €1,000. For one-time purchase (e-commerce): LTV = Average order value × purchase frequency × average customer duration. For marketplace/commission: LTV = Average commission per transaction × transaction frequency / churn rate. - **How much does it cost to start a company in Germany?**: Founding costs depend heavily on the legal form: UG (limited liability): From approx. €500–1,000 (notary, trade register, business registration). GmbH: Approx. €2,500–5,000 (€25,000 share capital required, at least €12,500 to be paid in at founding, plus notary and registration). GbR/Freelancer: Nearly free (just business registration or tax office registration). Add ongoing costs: tax advisor (€200–500/month), hosting/tools (€100–500/month), business address, insurance, and potentially domain and trademark registration. - **When should you seek funding?**: The ideal timing for fundraising depends on your situation: Pre-Seed (idea + team): When you have a strong team and identified a clear market need, but need capital for the MVP. Typical: €50,000–500,000. Seed (first traction): When you have a working product, first paying customers, and positive signals for product-market fit. Typical: €500,000–2M. Series A (scaling): When you have proven your model works and need capital to grow faster. Typical: €2–10M. Bootstrapping is a valid alternative if your business model generates cash flow quickly. --- ## Dental Cost Calculator (Zahnersatz-Rechner) - [Calculator](https://rechenportal.de/zahnersatz-rechner): Calculate dental costs: fixed subsidy, co-pay, bonus booklet, hardship - [English version](https://rechenportal.de/en/dental-cost-calculator) ### Blog Articles - [Dental Prosthetics Cost 2026: Insurance vs. Out-of-Pocket in Germany](https://rechenportal.de/en/dental-cost-calculator/blog/dental-cost-insurance-germany) *(pillar article)*: Complete overview of dental prosthetic costs: crowns, bridges, implants, dentures — what insurance covers, how the bonus booklet helps, and how to reduce out-of-pocket costs. - [Dental Crown Costs: Ceramic, Zirconia & Metal Compared](https://rechenportal.de/en/dental-cost-calculator/blog/dental-crown-costs-material-comparison): What does a dental crown cost? All-ceramic, zirconia, PFM and metal crown compared by price and quality. With insurance tips. - [Dental Implant Costs: What Does an Implant Really Cost?](https://rechenportal.de/en/dental-cost-calculator/blog/dental-implant-costs-complete): Complete cost breakdown for dental implants: implant, abutment, crown, bone grafting. What insurance covers and how to save. - [Dental Bonus Booklet: How to Save Up to 30%](https://rechenportal.de/en/dental-cost-calculator/blog/bonus-booklet-dentist-savings): How the bonus booklet works, why annual check-ups save real money, and what happens with gaps. Everything about the bonus booklet explained. - [Dental Supplement Insurance: Is It Worth It? Calculation Example](https://rechenportal.de/en/dental-cost-calculator/blog/dental-supplement-insurance-worth-it): Dental supplement insurance with calculation examples: costs, benefits, waiting periods, and when it's really worth signing up. - [Hardship Rule for Dental Work: Who Gets Double Subsidy?](https://rechenportal.de/en/dental-cost-calculator/blog/hardship-dental-double-subsidy): When does the hardship rule apply, what are the income limits, and how to apply for double the fixed subsidy for dental prosthetics? - [Dental Work Abroad: Opportunities & Risks](https://rechenportal.de/en/dental-cost-calculator/blog/dental-work-abroad-costs-risks): Dental work in Hungary, Poland or Turkey: How much do you really save? Risks, quality, warranty, and what insurance reimburses. ### FAQ - **How much does a dental crown cost?**: A dental crown costs between €400 and €1,000 depending on the material. A metal crown (standard care) costs approx. €400–500, a porcelain-fused-to-metal (PFM) crown approx. €600–900, an all-ceramic crown approx. €800–1,100, and a zirconia crown approx. €900–1,200. Statutory insurance pays a fixed subsidy of approx. €220 per crown regardless of the material chosen. - **What does insurance cover for dental prosthetics?**: Statutory health insurance (GKV) pays a fixed subsidy based on standard care. This is e.g. €220 for a crown, €220 per bridge unit, €440 for a partial denture, and €520 for a full denture. There is no subsidy for inlays or veneers. The subsidy is paid regardless of which material you choose — it's based on the diagnosis, not the therapy. - **What is the fixed subsidy (Festzuschuss)?**: The fixed subsidy is a set amount paid by statutory insurance for dental prosthetics. It's based on the dental finding (e.g., missing tooth, damaged crown), not the chosen treatment. Whether you opt for an inexpensive metal crown or a premium zirconia crown, the subsidy remains the same. It covers about 60% of the standard care costs. - **How much does the bonus booklet save?**: With a consistently maintained bonus booklet, the GKV fixed subsidy increases. After 5 years of regular check-ups, you get 20% more subsidy; after 10+ years, 30% more. For a crown with a €220 base subsidy, that's €44 (5 years) or €66 (10 years) extra. Across a full set of dental work, this can save several hundred euros. - **How much does a dental implant cost?**: A single dental implant costs between €2,300 and €4,000 including the abutment and crown. A standard titanium implant is approx. €2,300, a premium titanium implant approx. €3,100, and a ceramic implant approx. €4,000. Additional costs may include bone grafting (€500–1,500) or sinus lift (€1,000–2,500). Statutory insurance only covers the fixed subsidy for the crown portion (approx. €220). - **Is dental supplement insurance worth it?**: Dental supplement insurance can be worthwhile if you prefer premium dental work. Good plans reimburse 70–90% of costs and charge €15–50 per month depending on age. Important: most policies have waiting periods of 8 months and benefit limits in the first years. Already started or planned treatments are usually excluded. Best to sign up before problems arise. - **What is a treatment plan (HKP)?**: The Heil- und Kostenplan (HKP) is a binding cost estimate that your dentist creates before any dental prosthetic treatment. It lists the diagnosis, planned therapy, estimated costs, and insurance subsidy. The HKP must be approved by your insurance before treatment begins. You have the right to get a second opinion HKP from another dentist. - **What is the hardship rule?**: The hardship rule (Härtefallregelung) doubles the fixed subsidy for dental prosthetics. It applies to people with low income: singles with gross income below approx. €1,358/month (2026), couples below approx. €1,867. Recipients of Bürgergeld, social welfare, BAföG, or war victim support automatically qualify. With the hardship rule, insurance covers 100% of standard care costs. - **Are payment plans available at the dentist?**: Yes, most dentists offer payment plans, often through external financing partners. Typical terms: 6–24 monthly installments, often interest-free for short terms. Some dentists also offer internal payment plans at no extra cost. Ask about payment options before starting treatment and get the terms in writing. - **Are dental costs tax-deductible?**: Yes, dental costs can be claimed as extraordinary expenses on your tax return. However, there is a reasonable deductible amount of 1–7% of total income depending on income, marital status, and number of children. Only amounts exceeding this threshold provide a tax benefit. Collect all invoices and payment receipts for your tax return. --- ## EV Cost Calculator (E-Auto-Kostenrechner) - [Calculator](https://rechenportal.de/eauto-kostenrechner): EV vs. combustion: TCO comparison, subsidies, charging costs, CO₂ balance - [English version](https://rechenportal.de/en/ev-cost-calculator) ### Blog Articles - [Electric Car vs. Petrol 2026: Which Really Costs Less? The Honest TCO Comparison](https://rechenportal.de/en/ev-cost-calculator/blog/ev-vs-petrol-tco-comparison-2026) *(pillar article)*: The complete cost comparison: purchase price, energy, maintenance, insurance, tax, and depreciation — all facts at a glance. - [Charging an EV: Home vs. Public — What Does Electricity Really Cost?](https://rechenportal.de/en/ev-cost-calculator/blog/ev-charging-costs-home-public): Home charging vs. public stations: We compare prices, tariffs, and show how to save the most when charging. - [EV Subsidies 2026: Who Gets How Much?](https://rechenportal.de/en/ev-cost-calculator/blog/ev-subsidies-2026-overview): Overview of all electric car subsidy programs in Germany 2026: federal, state, and municipal grants. - [EV as Company Car: The 0.25% Rule Explained](https://rechenportal.de/en/ev-cost-calculator/blog/ev-company-car-025-percent-rule): How the 0.25% rule works, who benefits, and a calculation example with concrete numbers. - [Electric Car Depreciation 2026: Residual Value Risk Compared](https://rechenportal.de/en/ev-cost-calculator/blog/ev-depreciation-residual-value-2026): How fast do EVs lose value? Residual value analysis by brand and model compared to combustion cars. - [EV Not Worth It? These Driving Profiles Are the Exception](https://rechenportal.de/en/ev-cost-calculator/blog/ev-not-worth-it-exceptions): For whom an EV doesn't pay off yet: low-mileage drivers, long-distance commuters without home charging, and other exceptions. ### FAQ - **Is an electric car really cheaper than a petrol car?**: In many cases yes, especially regarding running costs. Electric cars have lower energy costs (electricity is cheaper than petrol/diesel per km), no road tax until 2030, and significantly lower maintenance costs (no oil changes, less brake wear due to regenerative braking). The higher purchase price is offset by lower operating costs depending on driving profile and ownership period. Our TCO calculator shows the individual break-even point. - **How much does it cost to drive an electric car 100 km?**: At an average consumption of 18 kWh/100km and a household electricity price of 35 ct/kWh, 100 km costs about €6.30. At public charging stations (55 ct/kWh), costs rise to about €9.90/100km. For comparison: a petrol car with 7 L/100km and €1.75/L costs €12.25/100km. Home charging is thus almost 50% cheaper than petrol. - **How do I calculate the total cost of ownership of a car?**: Total Cost of Ownership includes all costs over the ownership period: purchase price minus residual value (depreciation), energy costs (electricity or fuel), insurance, maintenance and repairs, road tax, and one-time costs like wallbox installation. Our calculator also accounts for price increases in electricity and fuel, as well as progressive road tax calculation. - **Are there still subsidies for electric cars in 2026?**: The federal subsidy (Umweltbonus) expired at the end of 2023. However, some federal states and municipalities still offer regional funding programs, e.g., for wallbox installation or commercial EVs. Manufacturers sometimes also offer their own EV premiums. Enter any received subsidies in the 'Subsidy / Grant' field to correctly calculate the TCO. - **Are electric cars really cheaper to maintain?**: Yes, significantly. EVs have fewer wear parts: no combustion engine, no transmission in the traditional sense, no exhaust system, no oil changes, no timing belt. Brakes wear less due to regenerative braking. Typical annual maintenance costs: EV €300-400, combustion engine €600-800. Over 5 years, you save €1,500-2,000 on maintenance alone. - **How much do electric cars depreciate compared to petrol cars?**: EV depreciation has approached that of combustion cars in recent years. After 5 years and 75,000 km, EVs typically retain 40-50% of their new price, while combustion cars retain 45-55%. The battery warranty (usually 8 years / 160,000 km) supports residual value. Important: rapid technological change can cause stronger depreciation. - **At what annual mileage does an electric car pay off?**: The more you drive, the faster the EV pays off. With low energy costs (home charging) and 15,000 km/year, many EVs reach break-even against a comparable combustion car after 3-5 years. At 20,000+ km/year, break-even can be reached in 2-3 years. Low-mileage drivers under 8,000 km/year benefit less from the cost advantage. - **How does the 0.25% rule work for EV company cars?**: Employees who also use a company car privately must pay tax on the benefit in kind. For EVs with a gross list price up to €70,000, the rate is only 0.25% per month (instead of 1% for combustion engines). For an EV with a €40,000 list price, this means: €100/month vs. €400/month for a combustion car — a tax saving of €300/month. This regulation applies until at least the end of 2030. - **Do electric cars have to pay road tax?**: No, electric cars are exempt from road tax until 2030 (maximum 10 years from first registration). After that, tax will likely be calculated by weight. For combustion engines, road tax typically amounts to €100-400 per year depending on displacement and CO₂ emissions. Over a 5-year ownership period, an EV saves €500-2,000 in road tax compared to a comparable combustion car. - **How does home vs. public charging affect costs?**: The difference is significant: home charging currently costs about 35 ct/kWh, public charging 45-79 ct/kWh. At 18 kWh/100km and 15,000 km/year: home charging €945/year, 100% public about €1,620/year — a difference of €675/year. Those with solar panels can charge even cheaper (8-12 ct/kWh). Home charging share is one of the most important factors for EV economics. --- ## Pet Cost Calculator (Haustierkosten-Rechner) - [Calculator](https://rechenportal.de/haustierkosten-rechner): What does a pet cost? Dog, cat, small animal — monthly and lifetime - [English version](https://rechenportal.de/en/pet-cost-calculator) ### Blog Articles - [What Does a Dog Really Cost? The Honest Cost Overview 2026](https://rechenportal.de/en/pet-cost-calculator/blog/what-does-a-dog-really-cost-2026) *(pillar article)*: Purchase, food, vet, insurance and dog tax — all dog costs at a glance with saving tips. - [Cat or Dog: What Actually Costs More Per Year?](https://rechenportal.de/en/pet-cost-calculator/blog/cat-vs-dog-cost-comparison-per-year): The honest cost comparison between cat and dog — food, vet, insurance and more. - [Dog Surgery Costs: How Much Does an Emergency Cost and When Is Insurance Worth It?](https://rechenportal.de/en/pet-cost-calculator/blog/dog-surgery-costs-emergency-insurance): Average surgery costs for dogs, common procedures and when pet health insurance pays off. - [Dog Tax in Germany 2026: What Do You Pay in Which City?](https://rechenportal.de/en/pet-cost-calculator/blog/dog-tax-germany-2026-cities): Dog tax rates in all federal states and major cities with registration tips. - [Pets and Vacation: What Does Pet Sitting, Pet Hotel, or Bringing Them Cost?](https://rechenportal.de/en/pet-cost-calculator/blog/pet-vacation-sitting-costs): Costs for pet hotel, pet sitter and bringing your pet on vacation — the big comparison with checklist. - [Pet Insurance: For Whom Is It Really Worth It?](https://rechenportal.de/en/pet-cost-calculator/blog/pet-insurance-really-worth-it): Liability, health insurance and surgery insurance for pets — what do you really need? ### FAQ - **How much does a dog cost per month?**: A dog costs between 150 and 400 euros per month depending on size. Small dogs run about 150-200 euros, medium dogs 200-300 euros, and large dogs 300-400 euros monthly. The biggest items are food (50-120 euros), preventive vet care (30-45 euros), insurance (35-60 euros) and dog tax (5-13 euros). Add grooming, accessories and prorated pet sitting costs for vacations. - **What are the lifetime costs of a dog?**: The lifetime costs of a dog range from 15,000 to 50,000 euros, depending on size and life expectancy. A small dog (14-year lifespan) costs about 25,000-35,000 euros, a medium dog (12 years) 30,000-40,000 euros, and a large dog (10 years) 35,000-50,000 euros. This includes purchase, initial equipment, ongoing costs and a reserve for unexpected vet bills. - **How much does a cat cost compared to a dog?**: A cat is significantly cheaper than a dog. Monthly costs are about 100-150 euros compared to 150-400 euros for dogs. Over its lifetime (16 years), a cat costs about 15,000-25,000 euros. The biggest difference: no dog tax for cats, lower food costs, and lower insurance costs. However, cats live on average 4-6 years longer than dogs. - **Do I have to pay dog tax and how much is it?**: Yes, dog tax is mandatory for all dog owners in Germany. It's levied by the local municipality and varies greatly: from about 60 euros/year in rural areas to over 180 euros/year in major cities like Berlin or Bremen. For a second dog, the tax is often double. Certain breeds (listed dogs) can be taxed even higher. Registration must be done at the municipal office. - **Is pet health insurance worth it?**: Pet health insurance is especially worthwhile for dogs, as surgery costs can quickly reach 2,000 to 5,000 euros. Surgery insurance costs about 15-30 euros/month, comprehensive insurance 30-80 euros/month. For cats, surgery costs are lower (averaging 1,500 euros), so some owners build a reserve instead. For small animals like rabbits or birds, there are hardly any worthwhile insurance options. - **What does the initial equipment for a dog cost?**: Initial equipment for a dog costs 350 to 550 euros depending on size. This includes: dog bed (30-100 euros), bowls (15-40 euros), leash and collar/harness (30-80 euros), transport crate (40-150 euros), grooming tools (20-50 euros), toys (20-40 euros) and initial food supply (30-60 euros). Add costs for the first vet visit with vaccinations (200-300 euros) and microchip (50-70 euros). - **How much does dog food cost per month?**: Dog food costs between 50 and 120 euros per month depending on dog size and food quality. A small dog gets by with about 50-70 euros, a medium dog needs 70-100 euros, and a large dog 100-150 euros. Premium wet food is significantly more expensive than dry food. BARF (raw feeding) runs 80-200 euros/month. Treats add another 10-20 euros/month. - **What does a dog surgery cost on average?**: Common dog surgeries cost: cruciate ligament tear 1,500-3,000 euros, gastric torsion 2,000-4,000 euros, tumor removal 500-3,000 euros, dental cleaning 200-500 euros, and neutering 200-600 euros (depending on gender and size). With the updated GOT (veterinary fee schedule) from 2022, costs have risen significantly. Emergency surgery at night or on weekends can be 50-100% more expensive. - **Which ongoing costs are often forgotten?**: Commonly forgotten costs include: dog tax (60-180 euros/year), liability insurance (40-80 euros/year, mandatory for dogs in many states), pet sitting during vacations (20-50 euros/day), tick prevention and deworming (100-200 euros/year), dental care (50-100 euros/year), and ongoing replacement of toys, leashes and beds. Dog school in the first year (500-1,000 euros) is also often underestimated. - **What is cheaper: a dog from a breeder or a shelter?**: A shelter dog is significantly cheaper to acquire: the adoption fee is about 200-400 euros, while a purebred dog from a breeder costs 1,000-3,000 euros. However, ongoing costs for food, vet and insurance are identical. Shelter dogs are usually already vaccinated, chipped and neutered. Long-term, you save about 1,000-2,500 euros with a shelter dog — but only on acquisition costs. --- ## Broadcasting Fee Calculator (Rundfunkbeitrag-Rechner) - [Calculator](https://rechenportal.de/rundfunkbeitrag-rechner): Calculate broadcasting fee: exemption, reduction, shared apartment split - [English version](https://rechenportal.de/en/broadcasting-fee-calculator) ### Blog Articles - [German Broadcasting Fee Exemption 2026: Who Qualifies and How to Apply](https://rechenportal.de/en/broadcasting-fee-calculator/blog/broadcasting-fee-exemption-2026-guide) *(pillar article)*: The complete guide to broadcasting fee exemption: Who qualifies, what documents are needed, and how to apply. - [Citizen's Benefit and Broadcasting Fee: Automatic Exemption or Application Required?](https://rechenportal.de/en/broadcasting-fee-calculator/blog/citizens-benefit-broadcasting-fee-exemption): Learn whether Citizen's Benefit recipients are automatically exempt from the broadcasting fee and how to apply correctly. - [Broadcasting Fee in a Shared Flat: Who Pays and How to Split Fairly?](https://rechenportal.de/en/broadcasting-fee-calculator/blog/broadcasting-fee-shared-flat): Everything about the broadcasting fee in a shared flat: Who registers, how to split costs, and what happens when a roommate changes? - [Broadcasting Fee with Disability: Marker RF Explained](https://rechenportal.de/en/broadcasting-fee-calculator/blog/broadcasting-fee-disability-marker-rf): What is Marker RF, who qualifies, and how to apply for the broadcasting fee reduction with a disability? - [BAföG and Broadcasting Fee: Are Students Really Exempt?](https://rechenportal.de/en/broadcasting-fee-calculator/blog/bafoeg-broadcasting-fee-students): Not all students are exempt! Learn which BAföG conditions must be met and how to submit the application. - [Not Paying the Broadcasting Fee: Consequences, Reminders and Enforcement](https://rechenportal.de/en/broadcasting-fee-calculator/blog/broadcasting-fee-not-paying-consequences): What happens if you don't pay the broadcasting fee? From reminders to enforcement — all stages explained. ### FAQ - **What is the German broadcasting fee and how much is it in 2026?**: The German broadcasting fee (formerly GEZ fee) funds public broadcasting in Germany. Since 2021, it is €18.36 per month per household (€55.08 per quarter, €220.32 per year). This amount remains unchanged in 2025 and 2026. The fee applies regardless of whether you own a TV, radio, or have internet access. - **Who can be exempted from the broadcasting fee?**: Full exemption is available for recipients of: Citizen's Benefit (ALG II), basic income support, social welfare, asylum seeker benefits, BAföG (full grant), and vocational training allowance. Also deafblind persons and those with severe sensory impairment. Persons with Marker RF in their disability ID receive a reduction to one third (€6.12/month). - **I don't own a TV — do I still have to pay?**: Yes. Since the reform in 2013, the broadcasting fee is charged per household, not per device. It doesn't matter if you own a TV, radio, or computer. Every household must pay — unless an exemption reason exists. - **What is Marker RF and who qualifies?**: Marker RF ("broadcasting fee exemption") is entered in the disability ID card. It's granted to persons who cannot participate in public events due to their disability — typically with a degree of disability (GdB) of at least 80 plus additional conditions. Blind and deaf persons usually receive it automatically. With Marker RF, you pay only one third: €6.12 instead of €18.36 per month. - **How do I apply for an exemption?**: Submit the application to the ARD ZDF Deutschlandradio Beitragsservice. You can fill out the form online at rundfunkbeitrag.de or send it by mail. You need: your contribution number (on every invoice), current proof (e.g., approval notice, not older than 3 months), and a copy of your ID card. Processing usually takes 4 to 6 weeks. - **Is the exemption retroactive?**: Yes, the exemption can be applied retroactively for up to 3 years if the exemption reason already existed at that time. You must prove that you were eligible at the time in question. Already paid fees will be refunded. Important: The exemption reason must have existed continuously. - **How does the broadcasting fee work in a shared flat?**: In a shared flat (WG), only one broadcasting fee is due per household. One person registers as the fee payer, the other roommates are automatically covered. Internally, costs can be split equally: with 2 people €9.18 each, with 3 people €6.12 each, with 4 people €4.59 each per month. There's no obligation to split — it's a private arrangement. - **Do I have to pay double for a second home?**: No. Since the Constitutional Court ruling of 2018, no additional broadcasting fee is charged for a secondary residence. Requirement: A fee is already registered for the primary residence. You need to apply for exemption for the secondary residence and provide the contribution number of your primary residence. - **What happens if I don't pay the broadcasting fee?**: Non-payment triggers a multi-step process: First a payment reminder, then a formal notice with late payment surcharge (1% of overdue amount, minimum €8). If still unpaid, enforcement follows — the fee service can enforce directly without a court judgment. This can lead to bank account seizure, bailiff visits, or an entry in the debtor register. - **Can I appeal the broadcasting fee?**: Yes, you can appeal a formal notice within one month. The appeal must be submitted in writing to the fee service and must be justified. If rejected, you can file a lawsuit at the administrative court. However, lawsuits against the broadcasting fee itself have not been successful — the Constitutional Court confirmed its constitutionality in 2018. --- ## Active Pension Calculator (Aktivrente-Rechner) - [Calculator](https://rechenportal.de/aktivrente-rechner): Calculate the 2026 Active Pension: up to €2,000 wage tax-free, net comparison, tax savings - [English version](https://rechenportal.de/en/active-pension-calculator) ### Blog Articles - [Active Pension 2026: How the €2,000 Tax Bonus Works](https://rechenportal.de/en/active-pension-calculator/blog/active-pension-2026-tax-bonus) *(pillar article)*: The complete guide to the Active Pension: who benefits, how big the tax advantage is, and what to watch when working past retirement age. - [Active Pension: Who Really Benefits from the Tax Bonus?](https://rechenportal.de/en/active-pension-calculator/blog/active-pension-who-benefits): Not every pensioner saves the same. We show who benefits most from the Active Pension — and who is left out. - [Active Pension or Minijob in Retirement: Which Pays Off More?](https://rechenportal.de/en/active-pension-calculator/blog/active-pension-vs-minijob-retirement): Tax-free mini-job or Active Pension with full wage? We compare both routes and show when the Active Pension pays off. - [Social Contributions in the Active Pension: What Pensioners Really Pay](https://rechenportal.de/en/active-pension-calculator/blog/active-pension-social-contributions): Tax-free does not mean contribution-free. Which health and care insurance contributions remain and which are dropped — clearly explained. ### FAQ - **What is the Active Pension and since when does it apply?**: The Active Pension (Aktivrente) is a tax incentive to keep working past the statutory retirement age. Since 1 January 2026, wages of up to €2,000 per month (€24,000 per year) remain income-tax-free if you work as an employee alongside your pension. The legal basis is the Active Pension Act (§ 3 Nr. 21 EStG). - **Who is entitled to the Active Pension?**: Only dependent employees who have reached the statutory retirement age are entitled. Self-employed persons, freelancers and business owners are explicitly excluded. The statutory retirement age is 67 for those born in 1964 or later, and slightly lower for older cohorts. - **How high is the tax-free amount exactly?**: Up to €2,000 gross wage per month stays tax-free, i.e. a maximum of €24,000 per year. If you earn more, only the excess is taxed normally. A wage of €1,800 is therefore fully income-tax-free; at €2,500, €2,000 stays free and €500 is taxed. - **Do I still have to pay social contributions?**: Yes, but less than before. After the statutory retirement age, your employee contributions to pension and unemployment insurance no longer apply. Contributions to health and care insurance are still due on the wage, however. The tax exemption only concerns income tax, not social insurance. - **Is my pension reduced or taxed by continued work?**: Your statutory pension remains unchanged and is taxed normally according to your individual taxable share. The Active Pension only concerns the wage, not the pension itself. Through continued work you can even earn additional pension points if you voluntarily keep paying into the pension insurance. - **Is the Active Pension worthwhile even with a low wage?**: The tax benefit is greatest if you would otherwise have a high marginal tax rate — for example because you receive a good pension plus wage. With a very low total income below the basic allowance, hardly any tax is due anyway, so the benefit is smaller. Our calculator shows the concrete savings for your situation. - **Can I combine the Active Pension with a mini-job?**: A mini-job (up to €556/month) is already taxed at a flat rate or tax-free. The Active Pension is worthwhile above all if you want to earn more than a mini-job, because it makes significantly higher wages tax-free. Those working only a few hours are often simpler off with a classic mini-job; those earning more benefit more from the Active Pension. - **Is this calculator's result binding?**: No. The calculator provides a realistic orientation based on simplified assumptions (basic tariff, 83.5% taxable share, no church tax). Your individual tax burden depends on further factors such as joint assessment, other income or special expenses. For a binding calculation, consult a wage tax assistance association or tax advisor. --- ## Commuter Allowance Calculator (Pendlerpauschale-Rechner) - [Calculator](https://rechenportal.de/pendlerpauschale-rechner): 2026 commuter allowance: 38 cents from the first kilometre — deductions & real tax saving - [English version](https://rechenportal.de/en/commuter-allowance-calculator) ### Blog Articles - [Commuter Allowance 2026: 38 Cents From the First Kilometre](https://rechenportal.de/en/commuter-allowance-calculator/blog/commuter-allowance-2026-38-cents-first-kilometer) *(pillar article)*: The complete guide to the 2026 distance allowance: how the uniform 38 cents work, what changes compared with 2025 and how much tax you save. - [Home Office and Commuter Allowance: What You Can Deduct in 2026](https://rechenportal.de/en/commuter-allowance-calculator/blog/home-office-and-commuter-allowance-2026): Commuter allowance or home-office lump sum? How to combine both correctly in 2026 and get the maximum from your deductible expenses. - [Mobility Premium 2026: The Bonus for Low Earners](https://rechenportal.de/en/commuter-allowance-calculator/blog/mobility-premium-low-earners-2026): Those who earn little save nothing via tax — that is what the mobility premium is for. Who gets it, how high it is and how to claim it. - [Job Ticket & Public Transport: Is the Commuter Allowance Still Worth It?](https://rechenportal.de/en/commuter-allowance-calculator/blog/public-transport-job-ticket-vs-allowance): Train, bus or job ticket instead of a car: how to combine public transport with the 2026 distance allowance and understand the €4,500 cap. ### FAQ - **How high is the commuter allowance in 2026?**: Since 1 January 2026 a uniform distance allowance of €0.38 (38 cents) per kilometre applies — from the very first kilometre. Until the end of 2025 there was a staggered rate: €0.30 for the first 20 kilometres and only €0.38 from the 21st kilometre. The new rule mainly benefits commuters with short and medium distances. - **Does the allowance count the one-way distance or the round trip?**: Only the one-way distance between home and your primary place of work counts — not the round trip. The shortest usable road connection is decisive. A longer route may only be used if it is more convenient and used regularly. - **How do I calculate my deductible commuting expenses?**: The formula is: distance in kilometres × €0.38 × working days per year. Example: 25 km one way on 220 working days gives 25 × €0.38 × 220 = €2,090 in deductible expenses. Our calculator does this automatically and also shows your actual tax saving. - **How much tax do I really save with the commuter allowance?**: The commuter allowance reduces your taxable income. Your actual saving is the allowance multiplied by your personal marginal tax rate. At a 30% marginal rate and €2,090 allowance that would be about €627 — but only insofar as your total deductible expenses exceed the €1,230 employee lump sum, which is deducted automatically anyway. - **What is the employee lump sum and why does it matter?**: The tax office automatically deducts an expenses lump sum of €1,230 from every employee, without any proof. Only when your actual deductible expenses — including the commuter allowance — exceed this threshold does each additional euro reduce your tax. With a short commute you may stay below the lump sum. - **What is the mobility premium and who gets it?**: The mobility premium is a permanently established subsidy for low earners whose taxable income is below the basic tax-free allowance (2026: €12,348). Because a higher deduction would have no tax effect for them, they instead receive 14% of the effective distance allowance paid out. The premium is claimed via the tax return. - **How do home-office days affect the commuter allowance?**: For every home-office day there is no commute — you may not count these as travel days. Instead there is the home-office lump sum of €6 per day (at most 210 days, i.e. €1,260 per year). For the same date you can claim either the commuter allowance or the home-office lump sum, not both. - **Does the allowance also apply to train, bus or bicycle?**: Yes, the distance allowance is independent of the mode of transport: it applies whether you commute by car, train, bus, bicycle or on foot. With public transport and no own car, however, the allowance is capped at €4,500 per year — unless the actual ticket costs are higher, in which case those count. - **Do I have to keep receipts for the commuter allowance?**: For the pure distance allowance you do not need fuel receipts — only the distance and the number of working days count. However, proof of your working days (e.g. from your employer) and the route is useful. The tax office may request evidence on a random basis, for instance with an unusually long route. - **From what distance does the commuter allowance pay off for tax?**: As a rough rule: as soon as your total deductible expenses exceed €1,230, the commuter allowance brings additional tax savings. With 220 working days and only the commuter allowance, this is the case from about 15 kilometres one way (15 × €0.38 × 220 ≈ €1,254). With further expenses the commute can pay off even earlier. --- ## EV Premium Calculator (E-Auto-Prämien-Rechner) - [Calculator](https://rechenportal.de/eauto-praemie-rechner): Work out your 2026 German EV purchase premium — base, family and income bonus, up to €6,000 - [English version](https://rechenportal.de/en/ev-premium-calculator) ### Blog Articles - [EV Subsidy 2026: Up to €6,000 — Who Gets How Much?](https://rechenportal.de/en/ev-premium-calculator/blog/ev-subsidy-2026-guide) *(pillar article)*: The complete guide to the new 2026 EV purchase premium: base premium, family bonus, income bonus, income limits and the application step by step. - [Taxable Income Explained: Why Your Gross Salary Doesn't Decide the Premium](https://rechenportal.de/en/ev-premium-calculator/blog/taxable-income-vs-gross-income-limit): The EV premium's income limit refers to taxable income — not gross pay. Here's how to find your figure and use allowances. - [PHEV or BEV? How Differently the 2026 Subsidy Turns Out](https://rechenportal.de/en/ev-premium-calculator/blog/phev-or-bev-subsidy-comparison): Full electric car or plug-in hybrid? The purchase premium differs significantly. A sober comparison of base premium, bonuses and total subsidy. - [Application Step by Step — and the Holding-Period Traps of the EV Premium](https://rechenportal.de/en/ev-premium-calculator/blog/application-step-by-step-holding-period): From first registration to payout: how to apply for the EV premium correctly — and avoid the most common mistakes around the 36-month holding period. ### FAQ - **What is the maximum EV premium in 2026?**: For a pure electric car (BEV) or a fuel-cell vehicle (FCEV), the base premium is €3,000. On top come up to €1,000 family bonus (€500 per child under 18, maximum two children) and €1,000 income bonus for a taxable income up to €60,000. In total, up to €6,000 is possible. For plug-in hybrids (PHEV) or range-extender vehicles (REEV), the base premium is €1,500 and the maximum €4,500. - **What is taxable income (zvE) and how do I find it?**: Taxable income is the basis on which your income tax is calculated — not your gross salary. It results after work-related expenses, special expenses, extraordinary burdens and allowances have been deducted from your income. As a rough guide, the zvE is often around 20 to 30 percent below the gross annual salary. You'll find the exact figure on your income tax assessment under the line "taxable income". - **Up to what income am I eligible?**: Eligible are people with a taxable income up to €80,000 per year. This limit rises by €5,000 per child under 18, with a maximum of two children counted. With two children, the ceiling is therefore €90,000. If your zvE is above that, there is no entitlement to the purchase premium. - **Is the income bonus staggered or a fixed amount?**: The income bonus is a fixed amount of €1,000. It is granted if the taxable income does not exceed €60,000 per year. It makes no difference whether your zvE is €30,000 or €58,000 — the bonus is €1,000 in both cases. From a zvE above €60,000 the income bonus no longer applies, but the base premium remains up to the eligibility ceiling. - **Which vehicles are eligible?**: Eligible are new passenger cars of vehicle class M1 first registered in Germany from 1 January 2026. Pure battery vehicles (BEV) and fuel-cell vehicles (FCEV) receive the full base premium, plug-in hybrids (PHEV) and range-extender vehicles (REEV) half. Used cars and vehicles registered before 2026 are not eligible. - **How long do I have to keep the EV (holding period)?**: A holding period of 36 months applies. After registration, the vehicle must remain registered in your name for at least three years. If it is sold, deregistered or moved abroad earlier, the funding body can reclaim the paid premium in full or in part. Anyone planning a short-term resale should factor this in when applying. - **When and where do I apply?**: The subsidy has been granted since 19 May 2026. The application is submitted to the responsible funding body, usually online after the vehicle's first registration. You need documents such as the purchase contract, the registration certificate and income details. As the funding pot is limited, an early application is recommended. - **Can the funding pot run out?**: Yes. Around €3 billion is available for 2026 to 2029, corresponding to roughly 800,000 vehicles. Funds are allocated on a first-come, first-served basis — whoever submits a complete application first is considered first. Once the pot is exhausted, funding ends even if the period has not yet expired. That's why it pays not to postpone the application until the last moment. - **Is the purchase premium taxable?**: For private buyers, the premium simply reduces the purchase price and is not itself taxable income. For commercial or business use, separate rules apply, for example on reducing the acquisition costs and depreciation base. When in doubt, clarify business cases with your tax adviser. This information does not replace individual advice. - **Can I combine the premium with other subsidies?**: That depends on the respective programme. Regional grants from individual states or municipalities — for example for a wallbox — concern a different funding object and can often be used in addition. A double federal subsidy for the same vehicle, however, is excluded. Check the conditions of each programme carefully before submitting multiple applications. --- ## Early-Start Pension Calculator (Frühstart-Rente Rechner) - [Calculator](https://rechenportal.de/fruehstart-rente-rechner): Calculate the planned Early-Start Pension: what €10 a month grows into by retirement - [English version](https://rechenportal.de/en/early-start-pension-calculator) ### Blog Articles - [Early-Start Pension: What 10 € a Month Really Grows Into by Retirement](https://rechenportal.de/en/early-start-pension-calculator/blog/early-start-pension-10-euro-month) *(pillar article)*: The complete guide to the planned Early-Start Pension 2026: How the state contributes 10 € a month, what it grows into over 60 years, and what is still uncertain. - [Birth Year 2020: How the Early-Start Pension Rolls Out – and Who Follows](https://rechenportal.de/en/early-start-pension-calculator/blog/early-start-pension-birth-year-2020): The first eligible cohort is children born in 2020. We explain the rolling start, open questions about older children, and what parents should know now. - [Compound Interest for Children Explained: Why the Early Years Matter Most](https://rechenportal.de/en/early-start-pension-calculator/blog/compound-interest-for-children-explained): 60 years of investment time is the real gift of the Early-Start Pension. Here is how compound interest works when a child starts at age 6. - [Early-Start Pension vs. Your Own ETF Savings Plan for a Child: The Honest Comparison](https://rechenportal.de/en/early-start-pension-calculator/blog/early-start-pension-vs-etf-savings-plan-child): State funding with a long lock-up or a flexible ETF savings plan you control? The pros and cons of both routes side by side. ### FAQ - **Has the Early-Start Pension already been passed into law?**: No. The Early-Start Pension is only planned so far. It is based on the German government's key points paper from 17 December 2025. There is no finished law yet – a retroactive start on 1 January 2026 is planned. All figures in this calculator are based on the currently known key points and may still change with the final version of the law. - **How much does the state pay into the Early-Start Pension?**: The plan is 10 € per month, i.e. 120 € per year, that the state pays into an individual, capital-funded retirement account for the child. Funding runs from age 6 to age 18 – over the full twelve years that adds up to a maximum of 1,440 € in state contributions. What matters for the final result, however, is less this sum than the long investment period until retirement. - **Which children receive the Early-Start Pension?**: The plan is to fund children between 6 and 18 who attend an educational institution in Germany. The start is planned as a rolling one: the first eligible cohort is children born in 2020, who turn six in 2026. Younger children join as soon as they turn 6. Whether and how older children who are already over 6 in 2026 will be included is still open in the final version of the law. - **What happens to the money until retirement?**: The money is invested in the capital market – the plan is an investment that participates in the development of the capital markets. It is locked until the standard retirement age and cannot be withdrawn before then. This long lock-up is precisely the core of the idea: if a child starts at 6, the capital has around 60 years to grow through compound interest. - **Can you pay in yourself from age 18?**: Yes, that is planned. From age 18, private top-up contributions into the retirement account should be possible. These private contributions are intended to be tax-advantaged, and the returns during the saving phase should remain tax-free. In our calculator you can set a monthly top-up from age 18 and see immediately how much it lifts the final result. - **How much can the Early-Start Pension grow into?**: That depends mainly on the return and the investment period. The state's 10 € a month alone can, at around 6 % return and a start at age 6, grow to a low five-figure amount by age 67 – from a maximum of 1,440 € in contributions. With private top-ups from age 18 it can become a considerably higher amount. Calculate your own scenario with the tool. - **Early-Start Pension or your own ETF savings plan – which is better?**: Both have pros and cons. The Early-Start Pension adds state money on top plus planned tax advantages, but is locked until retirement. Your own ETF savings plan in the child's name is flexible and available at any time, but receives no state funding. Many families will combine both. You will find a detailed comparison in our guide. - **Are the figures in the calculator guaranteed?**: No. The calculator shows a model calculation based on the planned rules and a constant return you choose. Actual capital market returns fluctuate from year to year and can also be negative. In addition, the law has not yet been passed. The results are therefore a guide, not a binding promise – all information without guarantee. --- ## Overtime Calculator (Überstunden-Rechner) - [Calculator](https://rechenportal.de/ueberstunden-rechner): Calculate overtime surcharge and net payout — current vs. planned law compared - [English version](https://rechenportal.de/en/overtime-calculator) ### Blog Articles - [Getting Overtime Paid Out in 2026: Tax, Surcharges and the Planned Exemption](https://rechenportal.de/en/overtime-calculator/blog/overtime-payout-2026-guide) *(pillar article)*: The complete guide to overtime payout: how surcharges are calculated, what stays net, and what the planned tax exemption for surcharges would bring. - [Does Overtime Expire? Your Rights to Payout and Time Off](https://rechenportal.de/en/overtime-calculator/blog/overtime-expiry-rights): When does overtime expire, when must it be paid out, and how do you document extra work correctly? Deadlines, exclusion clauses and limitation periods explained. - [Overtime: Payout or Time Off? What Really Pays in 2026](https://rechenportal.de/en/overtime-calculator/blog/overtime-payout-or-time-off): Payout brings money, time off brings rest — but what pays off financially? The comparison including tax, surcharge and the planned reform. - [Overtime in Part-Time Work: Why the Planned Exemption Often Doesn't Apply](https://rechenportal.de/en/overtime-calculator/blog/overtime-part-time): Special rules apply to part-timers: the planned tax exemption requires a full-time week of at least 34 hours. What this means for your extra work. ### FAQ - **Is overtime paid out tax-free in 2026?**: Not yet. The plan is to exempt only the overtime surcharges (not the base pay) from income tax — capped at 25% of the base wage. It is based on the draft Labour Market Strengthening Act of 12 September 2025. As of July 2026 the law has not been passed. Until it comes into force, overtime including surcharge is taxed normally. - **How do I calculate my overtime hourly wage?**: Divide your monthly gross salary by your monthly working hours. These are your weekly hours × 4.33 (average weeks per month). At €3,500 and 40 weekly hours that is roughly 173 hours per month, i.e. about €20.19 per hour. The surcharge (e.g. 25%) is added on top of this base wage. Our calculator does this automatically. - **How high is the overtime surcharge?**: There is no statutory right to an overtime surcharge. Whether and how much is paid depends on the employment, collective or works agreement. 25% is common for regular overtime; for night, Sunday or holiday work higher rates (e.g. 50%) are often agreed. Night, Sunday and holiday surcharges are already tax-privileged today — the planned reform additionally covers pure overtime surcharges. - **Do social contributions on overtime remain?**: Yes. The planned exemption explicitly concerns only income tax, not social insurance. Health, pension, unemployment and long-term care contributions still apply to base pay and surcharge — as long as you are below the relevant contribution ceilings. That is why the net advantage of the reform is smaller than "tax-free" might first suggest. - **Does my employer have to pay out overtime?**: That depends on the contract. Ordered or approved overtime must be compensated — either by payout or time off in lieu. Blanket clauses such as "overtime is covered by the salary" are only valid if a scope is recognisable; unlimited settlement clauses are usually void. For higher salaries, settlement may be more permissible. - **Is payout or time off in lieu more worthwhile?**: Financially, payout including surcharge is attractive — especially if the planned tax exemption arrives. Time off in lieu, on the other hand, is granted 1:1 in time (the surcharge often does not count here) and is tax-free because no money is paid out. Those who need rest are better off with time; those who need money, with payout. Our calculator shows you the net payout amount. - **Why do part-timers often not benefit from the reform?**: Under the draft, only surcharges for hours above a collectively agreed or contractual full-time week of at least 34 hours are tax-free. Someone working 30 hours who does five extra hours is still below the full-time reference — the planned exemption does not apply to those hours. Only hours beyond the full-time threshold would be favoured. This is intended to prevent the benefit from applying to minor extra work. - **How much tax exactly do I save through the planned reform?**: The advantage equals the tax-free surcharge multiplied by your marginal tax rate. Example: 10 overtime hours with a 25% surcharge at €20 base wage give €50 surcharge per month. At a 35% marginal rate you save around €17.50 income tax per month, i.e. about €210 per year. The higher your tax rate and surcharge (up to the 25% cap), the greater the advantage. Calculate your personal case above. --- ## Age Calculator (Altersrechner) - [Calculator](https://rechenportal.de/alter-rechner): Calculate your exact age: years, months, days, days lived & countdown - [English version](https://rechenportal.de/en/age-calculator) ### Blog Articles - [How Many Days Have I Lived? Age in Days, Weeks and Hours](https://rechenportal.de/en/age-calculator/blog/how-many-days-have-i-lived) *(pillar article)*: Your age in days is a surprisingly striking number. How to calculate it, what the 10,000th day of life means, and why round days are lovely reasons to celebrate. - [What Weekday Was I Born On? How to Find Out](https://rechenportal.de/en/age-calculator/blog/calculate-weekday-of-birth): Sunday's child or Monday's child: the weekday of your birth can be determined exactly. How the calculation works and the customs surrounding the days of the week. - [Calculating a Baby's Age: Understanding Age in Weeks and Months](https://rechenportal.de/en/age-calculator/blog/baby-age-in-weeks-and-months): Why parents count their baby's age in weeks and months, how to calculate it exactly, and how the week and month figures relate to developmental milestones and check-ups. - [Born on 29 February: How Leap-Year Birthdays Work](https://rechenportal.de/en/age-calculator/blog/leap-year-birthday-29-february): Anyone born on 29 February only has a real birthday every four years. When it is celebrated in common years, why leap days exist at all, and how the age is calculated correctly. - [Calculating a Countdown: Days Until a Birthday, Retirement or Holiday](https://rechenportal.de/en/age-calculator/blog/countdown-days-until-birthday): With a target date, the age calculator becomes a countdown calculator. How to work out the days until a birthday, the start of retirement or a holiday, and why it helps with planning. ### FAQ - **How is my exact age calculated?**: The calculator determines the difference between your date of birth and today (or a chosen target date) as full years, months and days. Months of different lengths and leap years are handled correctly — exactly the way age is stated in everyday life. - **How many years are 10,000 days?**: 10,000 days is roughly 27 years and 4 months. The 10,000th day of life therefore falls around age 27 and is a popular reason to celebrate an unusual "birthday". The calculator shows you the exact date of your next round day of life. - **Why can I enter a target date?**: By default the calculator counts up to today. If you enter a future target date, it also shows a countdown — for example to a milestone birthday, an exam or a holiday. If the target date is in the past, it calculates your age as of that exact date. - **Is my time of birth taken into account?**: No. The calculator works on a daily basis using the calendar date. The exact time of birth is not included because it is irrelevant to age, days lived and weekday. Day-level accuracy is entirely sufficient for the usual figures. - **Is my data stored?**: No. The entire calculation runs directly in your browser. No birth data is sent to a server, stored or analysed. You can share your result via a link — the data is then only in that address and nowhere else. --- ## Compound Interest Calculator (Zinseszinsrechner) - [Calculator](https://rechenportal.de/zinseszinsrechner): Calculate compound interest: lump sum, savings rate, interest gain & compounding effect - [English version](https://rechenportal.de/en/compound-interest-calculator) ### Blog Articles - [Compound Interest Explained Simply](https://rechenportal.de/en/compound-interest-calculator/blog/compound-interest-explained-simply) *(pillar article)*: Why money grows exponentially over time: the compounding effect explained step by step — with formula, examples and the three levers that really matter. - [The Rule of 72: When Does Your Money Double?](https://rechenportal.de/en/compound-interest-calculator/blog/rule-of-72-money-doubling): With a single division you can estimate how long your capital takes to double. Here's how the Rule of 72 works — and where its limits lie. - [Savings Plan or Lump Sum: Which Brings More?](https://rechenportal.de/en/compound-interest-calculator/blog/savings-plan-vs-lump-sum): Invest everything at once or save month by month? We compare the lump sum and the savings plan — with figures, the cost-average effect and an honest answer on when each strategy pays off. - [Reach Your Savings Goal: How Much to Save Each Month?](https://rechenportal.de/en/compound-interest-calculator/blog/reach-savings-goal-monthly-rate): You know your goal and your time frame — but how high does the savings rate need to be? Here's how to reverse the compound interest formula and calculate the monthly rate for any target sum. - [Compound Interest and Inflation: Understanding the Real Return](https://rechenportal.de/en/compound-interest-calculator/blog/compound-interest-inflation-real-return): Your final balance looks impressive — but what is it really worth? Why you must distinguish nominal from real return and how inflation quietly eats into compound interest. ### FAQ - **What is the compounding effect?**: Compound interest means that interest already credited itself earns further interest. In the first year only your deposited capital earns interest, but in the second year the interest from the first year earns interest too — and so on. As a result wealth does not grow linearly but exponentially: the longer the term, the more the growth accelerates. This is exactly what the calculator shows via the "interest on interest" figure. - **How is the final balance calculated?**: The final balance consists of two parts: the compounded starting capital and the compounded savings plan. The starting capital grows with K0 × (1 + i)^n. The monthly savings rates are summed up via the annuity future-value formula r × ((1 + i)^n − 1) ÷ i, where i is the rate per period and n the number of periods. Both results are added together. At an interest rate of 0% the final balance is simply the sum of all deposits. - **What does monthly or yearly interest credit mean?**: The interest-credit setting determines how often interest is added to the capital and thus starts earning interest itself. With monthly credit the nominal monthly rate (annual rate divided by twelve) is used — so the effective annual return is marginally above the nominal rate. With yearly credit the calculator uses an effective monthly rate so that twelve months compound to exactly the annual rate you entered. The difference is small at typical rates, but present. - **What is the difference between in advance and in arrears?**: The timing of the savings rate decides whether a rate is deposited at the start or the end of the period. In advance means a deposit at the start of the month — each rate then earns interest for one period longer. In arrears means a deposit at the end of the month, which is the standard for most savings plans. Saving in advance yields a slightly higher final balance with otherwise identical values, because the money starts working earlier. - **Does the calculator account for taxes and inflation?**: No. The calculator shows the nominal gross result before taxes, fees and inflation. In Germany capital gains are generally subject to a flat tax (25% plus solidarity surcharge and, where applicable, church tax), with the saver's allowance exempting part of it. In addition, inflation erodes the purchasing power of the final balance. For a realistic net view you should subtract these factors separately. The calculator does not replace tax or investment advice. - **What does the Rule of 72 tell me about my capital?**: The Rule of 72 is a rule of thumb: divide 72 by the interest rate in percent and you get roughly the number of years it takes a one-off invested amount to double. At 6% interest that's about twelve years, at 8% only nine. The rule works best in the range of roughly 4 to 12 percent and applies to lump sums without further deposits. For exact figures including a savings rate, use the calculator above. - **Why is the term length so decisive?**: Because the compounding effect is exponential, it unfolds its power above all over long periods. In the first years deposits dominate, but with each year the share of interest on interest grows. After two or three decades the interest earned can significantly exceed the deposits. Those who start early and stay invested for a long time therefore benefit disproportionately — even a few extra years change the final balance considerably. Move the duration in the calculator to see this effect for yourself. - **Is the calculator also suitable for ETF or fund savings plans?**: As a rough growth projection, yes — you simply enter an expected average return as the interest rate. It's important to note, however, that equity and fund returns are not constant but fluctuate strongly; individual loss years are not reflected here. For a realistic savings plan with expense ratio, withdrawal phase and volatility, the ETF savings plan calculator is the better choice. Use the compound interest calculator mainly to understand the principle and the order of magnitude. --- ## Blood Alcohol Calculator (Promillerechner) - [Calculator](https://rechenportal.de/promillerechner): Estimate blood alcohol (BAC) with the Widmark formula — no statement on fitness to drive - [English version](https://rechenportal.de/en/blood-alcohol-calculator) ### Blog Articles - [Calculating Blood Alcohol: The Widmark Formula Explained](https://rechenportal.de/en/blood-alcohol-calculator/blog/calculating-blood-alcohol-widmark-formula) *(pillar article)*: How does the Widmark formula work? Reduction factor, alcohol mass, absorption deficit and elimination rate explained step by step — with a worked example and the honest limits of the method. - [Blood Alcohol Limits in Germany: 0.0 · 0.3 · 0.5 · 1.1](https://rechenportal.de/en/blood-alcohol-calculator/blog/blood-alcohol-limits-germany): 0.0, 0.3, 0.5 and 1.1 ‰ — what does each limit mean? Administrative offence, relative and absolute unfitness to drive, probation period and the legal basis in the StVG and StGB, clearly explained. - [Alcohol Elimination: How Long Until You're Sober Again?](https://rechenportal.de/en/blood-alcohol-calculator/blog/alcohol-elimination-how-long-until-sober): Around 0.1 to 0.15 ‰ per hour — and no faster. Why coffee, cold showers and fresh air are just myths, how the body actually breaks down alcohol, and how to roughly estimate your remaining time. - [Residual Alcohol the Morning After: The Underestimated Danger](https://rechenportal.de/en/blood-alcohol-calculator/blog/residual-alcohol-the-morning-after): After a heavy night you are often far from sober the next morning. How to estimate how much residual alcohol is still in your blood at breakfast — and why feeling rested does not mean fit to drive. - [Blood Alcohol on Bicycles and E-Scooters: Which Limits Apply?](https://rechenportal.de/en/blood-alcohol-calculator/blog/blood-alcohol-limits-bicycle-e-scooter): 1.6 ‰ absolute unfitness on a bicycle, but 0.5 and 0.3 ‰ on an e-scooter — and 0.0 during probation. Why the e-scooter is treated like a motor vehicle in law and what that means for you. ### FAQ - **How accurate is the blood alcohol calculator?**: The calculator provides only a rough estimate based on the Widmark formula. Your actual blood alcohol level depends on many individual factors: body composition, stomach contents, drinking speed, medication, daily condition and more. Two people of the same weight can end up with markedly different values after the same drinks. This calculation makes no statement whatsoever about your fitness to drive and does not replace a breath or blood test. When in doubt, do not drive. - **What is the Widmark formula?**: The Widmark formula is the classic method for estimating blood alcohol concentration (BAC). It reads: BAC in ‰ = grams of alcohol ÷ (reduction factor r × body weight in kg). The reduction factor describes the share of the body in which alcohol distributes — typically 0.7 for men and 0.6 for women. A drink's alcohol content is amount × ABV% × 0.8. The formula is named after the Swedish chemist Erik Widmark, who developed it in the 1930s. - **How fast does the body eliminate alcohol?**: As a rule of thumb, the body eliminates about 0.1 to 0.2 ‰ per hour, on average around 0.15 ‰. Elimination is largely constant and cannot be sped up — not by coffee, cold showers, exercise or eating. Only time lowers the level. The calculator uses 0.15 ‰ per hour by default, but you can adjust the rate between 0.10 and 0.15 ‰ to calculate more conservatively. - **What does the absorption deficit mean?**: Not all the alcohol you drink reaches the bloodstream. Some is broken down in the gastrointestinal tract or never absorbed at all. This so-called absorption deficit is usually set at around 10%, so only about 90% of the alcohol takes effect. The calculator applies the deficit by default; you can switch it off to see the less favourable (higher) value. In forensic back-calculation the deficit is often omitted to stay on the safe side. - **At what level am I no longer allowed to drive?**: In Germany the administrative limit under § 24a StVG applies from 0.5 ‰ (0.25 mg/l breath alcohol). From as low as 0.3 ‰ a criminal offence for relative unfitness to drive may already exist (§ 316, § 315c StGB) if there are signs of impairment such as swerving or a crash. From 1.1 ‰ you are irrefutably deemed absolutely unfit to drive. For novice drivers in the probation period and anyone under 21, the 0.0 ‰ limit under § 24c StVG applies. Important: this calculator cannot and must not tell you whether you may drive — it is only an estimate. When in doubt, do not drive. - **Why do women reach a higher level after the same amount?**: On average, women have a lower proportion of body water than men. Because alcohol distributes into body water, the same amount of alcohol produces a higher concentration when the distribution volume is smaller. That is why the Widmark formula uses the lower reduction factor of 0.6 for women and 0.7 for men. This is a statistical average — an individual's actual factor can differ. - **Can I use the result to prove I was sober?**: No. The result is a non-binding estimate with no evidential value whatsoever. Legally, only the measured breath or blood alcohol concentration counts. The Widmark formula can over- or underestimate the true value by several tenths of a per mille. Never rely on this calculator to decide whether you can drive. - **How should I read the "in X h Y min" time?**: The calculator deliberately gives no clock time, but the estimated time remaining from now until your BAC mathematically drops below each limit, based on the elimination rate you set. Because elimination varies individually and the starting estimate is imprecise, you should add a generous safety margin to these times — and when in doubt, not drive at all. --- ## Due Date Calculator (Geburtstermin-Rechner) - [Calculator](https://rechenportal.de/geburtstermin-rechner): Calculate your due date with the Naegele rule — incl. pregnancy week, trimester & maternity leave - [English version](https://rechenportal.de/en/due-date-calculator) ### Blog Articles - [Calculating Your Due Date: How the Naegele Rule Works](https://rechenportal.de/en/due-date-calculator/blog/calculating-your-due-date-naegele-rule) *(pillar article)*: The Naegele rule determines the estimated due date from the first day of the last period. How the formula works, why cycle length matters and what the date really means. - [Understanding Pregnancy Weeks (SSW)](https://rechenportal.de/en/due-date-calculator/blog/understanding-pregnancy-weeks-ssw): Why are pregnancy weeks counted from the last period and not from conception? What does the notation "12+3" mean and how are the three trimesters divided? A clear overview. - [The Three Trimesters: What Happens in Each Phase of Pregnancy](https://rechenportal.de/en/due-date-calculator/blog/the-three-trimesters-of-pregnancy): From implantation to birth: what happens in each of the three trimesters, which milestones lie ahead and which check-ups matter — an overview of the 40 weeks. - [Calculating Maternity Protection: Dates, Start and End](https://rechenportal.de/en/due-date-calculator/blog/calculating-maternity-protection-dates): Maternity protection begins six weeks before the due date and ends eight (or twelve) weeks after birth. How the periods are calculated under § 3 MuSchG and what applies if the baby arrives earlier or later. - [Overdue: What Happens When You Pass Your Due Date](https://rechenportal.de/en/due-date-calculator/blog/overdue-what-happens-past-your-due-date): The due date has passed and your baby is taking its time? Why this is usually no cause for concern, when a pregnancy is considered post-term and how medical monitoring works. ### FAQ - **How is the estimated due date calculated?**: Using the Naegele rule, the calculator adds 280 days (40 weeks) to the first day of your last period. If your cycle length differs from 28 days, the date is corrected accordingly. If you know the day of conception, 266 days are added; with IVF the date is derived exactly from the transfer date. - **Will my baby really arrive on the due date?**: Only about 4% of babies are born exactly on the due date. Most arrive in the two weeks before or after. The due date is therefore a point of reference, not a fixed date. The ultrasound dating done by your doctor is the decisive figure. - **Why are pregnancy weeks counted from the last period?**: The exact moment of conception usually cannot be determined, whereas the first day of the last period is easy to remember. That is why the medical pregnancy week (SSW) is counted from that day. As a result, you are already in the 3rd week at conception — by this count a pregnancy lasts 40 weeks. - **What does the notation "12+3" mean?**: The "week + day" notation states the completed pregnancy weeks and the additional days. "12+3" therefore means 12 full weeks and 3 days — you are then in the 13th week. The calculator shows you this figure automatically for today. - **When does maternity protection start?**: Under § 3 of the German Maternity Protection Act, the protection period starts six weeks before the due date and ends eight weeks after birth. For premature and multiple births, the period after birth is extended to twelve weeks. The calculator shows the expected dates based on the due date. - **Is my data stored?**: No. The entire calculation runs directly in your browser. Your sensitive health data as defined by Art. 9 GDPR is never sent to a server, stored or analysed. Only if you share your result via a link are the values contained in that address — nowhere else. --- ## Ovulation Calculator (Eisprung- & Zyklusrechner) - [Calculator](https://rechenportal.de/eisprung-zyklus-rechner): Calculate fertile days, ovulation & next period — not a contraception method - [English version](https://rechenportal.de/en/ovulation-calculator) ### Blog Articles - [Calculating Your Fertile Days: How to Find Your Window](https://rechenportal.de/en/ovulation-calculator/blog/calculating-your-fertile-days) *(pillar article)*: Conception is only possible on a few days of the cycle. How to determine your fertile window, why the five days before ovulation matter, and how reliable the calendar method really is. - [Why the Calendar Method Is Not Reliable Contraception](https://rechenportal.de/en/ovulation-calculator/blog/calendar-method-not-reliable-contraception): The calendar method is useful for estimating fertile days — as contraception it is unreliable. What the Pearl Index means, why cycles fluctuate, and which methods actually protect. - [Understanding Cycle Length: What Is Normal, Short or Long?](https://rechenportal.de/en/ovulation-calculator/blog/understanding-cycle-length-normal-short-long): A cycle between 21 and 35 days is considered normal. What cycle length reveals about your body, why it fluctuates and when it makes sense to talk to your doctor. - [Recognising Signs of Ovulation: The Signals Your Body Gives](https://rechenportal.de/en/ovulation-calculator/blog/recognising-signs-of-ovulation): Cervical mucus, basal body temperature and ovulation pain can indicate ovulation. How to observe these body signs — and why they complement the calendar but do not replace a medical diagnosis. - [Trying to Conceive: Tips Around Ovulation](https://rechenportal.de/en/ovulation-calculator/blog/trying-to-conceive-tips-around-ovulation): When trying to conceive, timing matters. How to use the fertile window, which everyday factors influence fertility and when medical advice helps. ### FAQ - **How is my ovulation calculated?**: The calculator uses the calendar method: it adds the cycle length minus the luteal phase to the first day of your last period. For a 28-day cycle with a 14-day luteal phase, ovulation therefore falls roughly 14 days after the period begins. Ovulation is always shown for the next cycle that lies today or in the future. - **Can I use the calendar method for contraception?**: No. The calendar method is NOT a reliable method of contraception. Its failure rate is around 15–24% per year, because cycles vary individually and ovulation can shift. For preventing pregnancy, reliable methods such as the pill, IUD or condom are far more suitable. Talk to your doctor about this. - **What are the fertile days?**: The fertile days are the five days before ovulation, ovulation day itself and the day after. This is because sperm can survive in the female body for up to five days, while the egg is only able to be fertilised for about 24 hours. The highest chance of conception is on the one to two days immediately before ovulation. - **How accurate is the calculation with an irregular cycle?**: The calendar method assumes a constant cycle length. If your cycle varies a lot, ovulation shifts too and the prediction becomes less accurate. In that case, methods that measure body signals — such as the symptothermal method with basal body temperature and cervical mucus — give far more reliable indications of actual ovulation. - **Is my cycle data stored?**: No. The entire calculation runs directly in your browser. Your cycle and reproductive data — specially protected under Art. 9 GDPR — is never sent to a server, stored or analysed. If you share your result via a link, the values are only in that address and nowhere else. --- ## Driver's License Cost Calculator (Führerschein-Kosten-Rechner) - [Calculator](https://rechenportal.de/fuehrerschein-kosten-rechner): What does a driving license cost? Calculate all costs: lessons, fees, exams - [English version](https://rechenportal.de/en/drivers-license-cost-calculator) ### Blog Articles - [What Does a Driver's Licence Cost in 2026? All Costs at a Glance](https://rechenportal.de/en/drivers-license-cost-calculator/blog/what-does-a-drivers-license-cost-2026) *(pillar article)*: The complete cost overview for the Class B driving licence: base fee, lessons, special drives, exams and extras — with realistic 2026 reference values. - [How Many Driving Lessons Do You Really Need?](https://rechenportal.de/en/drivers-license-cost-calculator/blog/how-many-driving-lessons-do-you-need): Mandatory hours, practice lessons and the biggest cost lever: how many driving lessons are realistic and what the number depends on. - [Saving on Driver's Licence Costs: 10 Legal Tips](https://rechenportal.de/en/drivers-license-cost-calculator/blog/save-on-drivers-license-costs): From comparing driving schools to solid theory prep and smart scheduling: ten legal ways to save real money on your driving licence. - [Driving Licence Classes Explained (B, BE, B197, B96, AM, A1 …)](https://rechenportal.de/en/drivers-license-cost-calculator/blog/driving-license-classes-overview): B, BE, B96, B197, AM, A1 and more: which licence class you need for what, what it permits and how it affects costs. - [Failed the Driving Test — What Now? Costs & Retaking](https://rechenportal.de/en/drivers-license-cost-calculator/blog/failed-the-driving-test-what-now): Failed the theory or practical test? Which deadlines apply, what a retake costs and how to pass the second attempt with confidence. ### FAQ - **What does a Class B driving licence cost in 2026?**: Realistically, total costs in 2026 are usually between €2,500 and €4,500 — more in metropolitan areas and with many lessons. Driving lessons make up the largest share. Because driving schools price freely and the number of lessons needed varies widely, there is no fixed price. Our calculator estimates your personal cost from the base fee, practice lessons, special drives, fees and extras. - **Why are driving lessons the biggest cost block?**: Each 45-minute lesson costs roughly €40 to €90 depending on region and school, and special drives cost even more. Since most learners need 25 to 40 practice lessons plus the 12 mandatory special drives, this quickly adds up to €2,000 or more. Those who need fewer lessons save the most — which is why good theory and practical preparation pays off. - **What are special drives and how many are mandatory?**: Special drives are legally required training drives for Class B: five overland drives, four motorway drives and three night or dusk drives — twelve in total. You must complete them before you can take the practical test, and they are usually somewhat more expensive than regular lessons. These twelve are the only mandatory minimum for driving hours — all other practice lessons depend on your ability. - **What does it cost if I fail the test?**: Each retake means paying the relevant exam fee again — around €25 for the theory test and about €130 for the practical (plus the school's TÜV/DEKRA presentation charge). Usually a few extra preparation lessons are added, which quickly amounts to €100 to €300 per retake. In our calculator you can set the number of exam attempts and see the effect immediately. - **What extra costs arise besides the driving school?**: Besides the driving school you need an eye test (about €7), a first-aid course (around €40), a biometric passport photo (about €15) and the licence application at the authority (about €40 to €45). Learning material or a theory app is often added. Individually these are small amounts, but together they quickly reach €120 or more — these extras are shown separately in the calculator. - **Can I save money on the driving licence?**: Yes, in several ways. Compare multiple driving schools and their price structures, prepare the theory thoroughly with an app, arrive rested and go regularly, and avoid long breaks that make repeat lessons necessary. The biggest lever is keeping the number of lessons low — every lesson saved is €40 to €90. You'll find concrete tips in our guide. - **How do licence classes differ in cost?**: This calculator is designed for Class B (cars), the most common and, for many, the first class. Extensions such as B96 (heavier trailers) or BE (trailers over 750 kg) require additional training and cost. The automatic variant B197 allows taking the test in an automatic while keeping manual entitlement and is now widespread. Motorcycle classes (AM, A1, A2, A) follow their own rules. Our licence-classes guide gives an overview. - **Are the prices in the calculator binding?**: No. All values are regional average and reference figures for 2026 and serve only as orientation. Driving schools price freely, and the number of lessons you personally need cannot be determined exactly in advance. The result is a non-binding estimate. Reliable numbers only come from a concrete quote from your local driving school. --- ## Ideal Weight & Body Fat Calculator (Idealgewicht- & Körperfett-Rechner) - [Calculator](https://rechenportal.de/idealgewicht-koerperfett-rechner): Calculate ideal weight and body fat: Broca, Devine, BMI range & US Navy formula - [English version](https://rechenportal.de/en/ideal-weight-body-fat-calculator) ### Blog Articles - [Calculating Ideal Weight: Which Formula Is Actually Right?](https://rechenportal.de/en/ideal-weight-body-fat-calculator/blog/calculate-ideal-weight-which-formula) *(pillar article)*: Broca, Devine, BMI range or body fat percentage — which method gives the most meaningful "ideal weight"? The complete overview with strengths, weaknesses and a clear recommendation. - [Broca, Devine and BMI: The Ideal-Weight Formulas Compared](https://rechenportal.de/en/ideal-weight-body-fat-calculator/blog/broca-devine-bmi-formulas-compared): Three classic formulas, three different results. We show how Broca, Devine and the BMI healthy-weight range calculate, where they come from and when each method makes sense. - [Measuring Body Fat: Methods From Caliper to Navy Formula](https://rechenportal.de/en/ideal-weight-body-fat-calculator/blog/measuring-body-fat-methods): Scale, caliper, bioimpedance, DEXA or circumference measurements — how reliable are the common body fat methods really? An overview of accuracy, cost and everyday practicality. - [The US Navy Method for Body Fat Measurement Explained](https://rechenportal.de/en/ideal-weight-body-fat-calculator/blog/us-navy-method-body-fat-explained): The US Navy formula estimates body fat from circumference measurements alone. We explain the formula step by step, how to measure correctly and how accurate the result really is. - [Realistic Weight Loss: Why the Scale Doesn't Tell the Whole Story](https://rechenportal.de/en/ideal-weight-body-fat-calculator/blog/realistic-weight-loss-scale): The number on the scale fluctuates daily and doesn't measure whether you lose fat or muscle. How to track progress sensibly, set healthy goals and not let one figure discourage you. ### FAQ - **Which ideal-weight formula is the best?**: There is no perfect formula, but the BMI healthy-weight range (BMI 18.5–24.9) is the best-supported reference today — which is why we show it as the recommended value. It gives a range instead of a single number, reflecting that there is no single "correct" weight. Broca and Devine are older formulas that output a single figure and ignore build and muscle mass. They are useful as a rough rule of thumb and for comparison, but less meaningful. - **How does the Broca formula work?**: The Broca formula first sets normal weight as height in centimetres minus 100. At 175 cm that is 75 kg. The "ideal weight" lies below that: about 10% less for men, about 15% less for women. The formula dates from the 19th century, is easy to calculate but very imprecise — it ignores build, age and muscle share and gives unrealistic values for very tall or short people. We list it for comparison only. - **What is the Devine formula?**: The Devine formula was originally developed in 1974 for drug dosing, not as a beauty ideal. It calculates 50 kg plus 2.3 kg per inch over 152 cm (5 feet) for men, and 45.5 kg as the base value for women. Because it builds on a fixed reference height, it gives less plausible values for very tall or short people. It is still common in medicine; as a personal weight goal it should be viewed with caution. - **How accurate is the US Navy body fat formula?**: The US Navy formula (also the Hodgdon-Beckett method) estimates body fat from waist, neck, height and, for women, the hip as well. It is remarkably practical because you only need a tape measure, but typically deviates by around 3–4 percentage points from reference methods such as DEXA. Clean measuring is key: measure loosely without pulling tight, in the morning and always at the same spot. It works well for trends over time, less so for one exact figure. - **Is my body fat too high or too low?**: Healthy ranges differ markedly between the sexes, because women physiologically need more essential fat. Rough guidance: for men about 10–20% is a good range, for women about 18–28%. Very low values are not automatically "better" — essential fat is vital. The calculator sorts your value into categories from "essential" to "elevated". These figures are reference points, not a diagnosis; if unsure, a medical assessment helps. - **Why does the result differ from the BMI calculator?**: The BMI only relates weight to height and says nothing about body composition. This calculator goes further: it compares several ideal-weight formulas and additionally estimates your body fat from circumference measurements. Two people with an identical BMI can have very different body fat levels — for example a muscular person versus an untrained one. That is why body fat is often more meaningful than weight alone. For the classic BMI value, use our separate BMI calculator. - **Is there even a "correct" ideal weight?**: No — strictly speaking, not. "Ideal weight" is an individual range, not a fixed point, and certainly not a medical requirement. Health depends on many factors: muscle mass, fitness, blood values, sleep, mental wellbeing. Two people of the same height can both be healthy at different weights. Use this calculator's figures as rough guidance, not a target. If your weight or eating behaviour is troubling you, a conversation with a doctor is a better path than a formula. - **How do I measure waist, neck and hip correctly?**: Use a flexible tape and measure on bare skin without pulling tight. Measure the neck just below the larynx, with the tape tilted slightly forward. Measure the waist at navel level with a relaxed abdomen, at the end of a normal exhale. Take the hip circumference (for women) at the widest point of the buttocks. Measure in the morning if possible and repeat each measurement two or three times to avoid reading errors. Consistency matters more than the single centimetre. --- ## Tax Class Calculator (Steuerklassen-Rechner) - [Calculator](https://rechenportal.de/steuerklassen-rechner): Find the best tax class combination for couples: III/V, IV/IV or factor method - [English version](https://rechenportal.de/en/tax-class-calculator) ### Blog Articles - [Tax Classes 2026: Which Combination Pays Off for Couples?](https://rechenportal.de/en/tax-class-calculator/blog/tax-classes-2026-couples-guide) *(pillar article)*: The complete guide to choosing tax classes for married couples: IV/IV, III/V and the factor method compared — what really brings more net and what only shifts liquidity. - [Tax Class III/V or IV/IV — Which Is Better?](https://rechenportal.de/en/tax-class-calculator/blog/tax-class-3-5-or-4-4): III/V gives the higher earner more net, IV/IV distributes more evenly. When each combination pays off and why the annual tax stays the same. - [The Factor Method (IV/IV with Factor) Simply Explained](https://rechenportal.de/en/tax-class-calculator/blog/factor-method-explained): The factor method distributes wage tax fairly across both partners and avoids the typical III/V back payment. How it works and who it suits. - [Changing Your Tax Class: How It Works, Deadlines and Tips](https://rechenportal.de/en/tax-class-calculator/blog/change-tax-class): How often can you change your tax class, which deadlines apply and which form do you need? The practical guide to switching in 2026. - [Tax Class and Parental Allowance: Why the Right Switch Means Real Money](https://rechenportal.de/en/tax-class-calculator/blog/tax-class-parental-allowance): Parental allowance is based on net pay before the birth. Switching tax class in good time can significantly raise it — and which deadlines apply. ### FAQ - **Do I save tax overall with the right tax class?**: No. Choosing a tax class does not change your annual tax. For married couples it is finalised through income splitting in the tax return, regardless of whether you had IV/IV or III/V during the year. The class choice only determines how much wage tax is withheld each month — your liquidity. Overpaid tax is refunded, underpaid tax must be paid back. - **What is the difference between III/V and IV/IV?**: With IV/IV both partners are taxed like single people — each keeps their full basic allowance. With III/V the higher earner in class III gets the doubled basic allowance and therefore pays much less wage tax monthly; the lower earner in class V pays disproportionately more. On balance III/V often leaves the couple with more monthly net, but a back payment looms. IV/IV is more even and produces fewer surprises. - **Who benefits from the III/V combination?**: III/V mainly brings more monthly liquidity when the partners' incomes differ significantly — a rule of thumb is roughly 60:40 or more. The higher earner takes class III, the lower earner class V. With almost equal incomes III/V brings hardly any liquidity advantage and only creates unnecessary back-payment risk. Our calculator shows for your actual figures which combination yields the highest combined net. - **What is the factor method (IV/IV with factor)?**: With the factor method both partners stay in class IV, but the tax office additionally enters a factor below 1. This factor ensures the monthly withheld wage tax already roughly matches the expected joint annual tax. The tax burden is thus distributed fairly according to income, there is more monthly net than with plain IV/IV and usually no nasty surprise at year-end. The factor is calculated from your annual gross wages and is valid for two years. - **Do I have to file a tax return with III/V?**: Yes. The III/V combination (and likewise the factor method) triggers an obligation to file an income tax return. The reason: because monthly wage tax in this combination can be systematically too low, the tax office wants to check the actual tax at year-end. Expect that a back payment may be due and set money aside for it. With IV/IV without a factor this filing obligation usually does not apply. - **How often and by when can I change my tax class?**: Married couples can change their tax class several times a year. The application is filed with the tax office (form for changing the tax class of spouses/civil partners), nowadays usually electronically. A change generally takes effect from the month after the application. Timing matters before wage replacement benefits: for the highest possible parental allowance the switch should be made well before the start of the maternity protection period. Allow several months' lead time here. - **How does the tax class affect parental allowance?**: Parental allowance is based on the average net pay of the twelve months before the birth (or before maternity protection). Whoever is in a more favourable tax class during that period and therefore has a higher net also receives more parental allowance. For the parent who will draw the parental allowance, switching to a lower tax class (e.g. III) in good time can pay off. The change must, however, be made early enough to take effect within the assessment period. - **How accurate is this tax class calculator?**: The calculator uses the 2026 income tax tariff (§ 32a EStG) and current social insurance rates and computes each combination separately for both partners. It makes flat assumptions: statutory health and pension insurance, a 2.9 percent additional contribution and no individual allowances. For comparing the combinations and the monthly liquidity this is very meaningful. The final annual tax, however, depends on your individual assessment — this calculation is non-binding and does not replace tax advice. --- ## VAT Calculator (MwSt-Rechner) - [Calculator](https://rechenportal.de/mwst-rechner): Calculate German VAT: gross to net and net to gross at 19% or 7% - [English version](https://rechenportal.de/en/vat-calculator) ### Blog Articles - [Calculating VAT in 2026: The Complete Guide](https://rechenportal.de/en/vat-calculator/blog/calculate-vat-2026) *(pillar article)*: Net to gross, gross to net, 19 or 7 per cent: the complete guide to German VAT with formulas, worked examples, typical mistakes and practical cases. - [19 or 7 Per Cent? Which Rate Applies to Which Supply](https://rechenportal.de/en/vat-calculator/blog/19-or-7-percent-vat-rate): The reduced rate applies only to a closed statutory list. Which supplies belong to it, what changed for hospitality in 2026 and where the borderline cases lie. - [The Small-Business Rule (Section 19 UStG): Limits and Consequences](https://rechenportal.de/en/vat-calculator/blog/small-business-rule-section-19): €25,000 last year, €100,000 this year: the new net limits since 2025, what happens when you exceed them and when opting out is the better choice. - [Input VAT Deduction Simply Explained](https://rechenportal.de/en/vat-calculator/blog/input-vat-deduction-explained): Why VAT is a pass-through item for businesses, what the conditions for deducting input VAT are and where it most often fails in practice. - [Mandatory Invoice Details — and What Happens When They Are Wrong](https://rechenportal.de/en/vat-calculator/blog/invoice-mandatory-details): Ten mandatory details under section 14 UStG, the special rules for small-value invoices and the expensive trap of incorrectly stated VAT under section 14c UStG. ### FAQ - **How do I calculate the gross amount from the net amount?**: You multiply the net amount by 1.19 at the standard rate or by 1.07 at the reduced rate. €1,000 net therefore becomes €1,190 gross, with €190 of VAT included. At the reduced rate the same €1,000 net gives a gross amount of €1,070 with €70 of tax. The calculator does this conversion for you and shows net, tax and gross at the same time. - **How do I extract the VAT from a gross amount?**: You divide the gross amount by 1.19 or 1.07 to get the net amount; the difference is the VAT. €119 gross becomes €100 net and €19 of tax. As a rule of thumb: at 19 per cent, 15.97 per cent of the gross amount is VAT; at 7 per cent it is 6.54 per cent. Never simply deduct 19 per cent from the gross amount — the result would be too high. - **When does the reduced rate of 7 per cent apply?**: The reduced rate applies only to the supplies listed in the catalogue of section 12(2) UStG. These include most foodstuffs, books, newspapers and magazines, local passenger transport, short-term letting of accommodation and admission to theatres, concerts and museums. Since 1 January 2026 restaurant and catering services are permanently included at 7 per cent as well, with the exception of drinks. Anything not on the list is taxed at 19 per cent. - **What changed for hospitality in 2026?**: On 1 January 2026 a new item was added to the catalogue as section 12(2) no. 15 UStG: restaurant and catering services are permanently taxed at 7 per cent. This removes the earlier distinction between eating in at 19 per cent and takeaway at 7 per cent. Drinks are expressly excluded and stay at the standard rate. It affects not only restaurants and cafés but also caterers and canteens. - **Which turnover limits apply to small businesses?**: Since section 19 UStG was rewritten with effect from 1 January 2025 the rule is: you are a small business if your total turnover was at most €25,000 in the previous calendar year and does not exceed €100,000 in the current one. Both figures are net limits; until 2024 they were gross limits of €22,000 and €50,000. The supplies are genuinely exempt. If the €100,000 limit is broken during the year, the exemption ends immediately — the supply that breaks the limit is already taxable. - **What does reverse charge mean and how do I calculate it?**: Under the reverse-charge procedure of section 13b UStG the VAT is owed not by the supplier but by the recipient. Typical cases are supplies to businesses in other EU states, construction work between construction firms, and supplies made in Germany by foreign traders. You issue the invoice without VAT, add a note that the recipient is liable for the tax and state both VAT identification numbers. In the calculator you select the 0 per cent rate for this. - **Why does my result differ from the invoice by a few cents?**: Rounding differences arise because invoicing programs work differently: some round every line item to two decimals and only then add up, others add first and round at the end. With many line items this can produce differences of a few cents. This calculator rounds both the individual item and the total commercially to two decimals. What matters for the VAT return is the amount actually stated on the invoice. - **How binding is the result of this calculator?**: The calculator implements the rates of section 12 UStG correctly and gives exact values for the pure conversion between net, tax and gross. It cannot, however, decide for you which rate applies to your particular supply, whether a transaction is exempt or whether reverse charge applies — those are legal classifications with many borderline cases. The result is therefore a non-binding estimate and replaces neither tax nor legal advice. --- ## Pension Calculator (Rentenrechner) - [Calculator](https://rechenportal.de/rentenrechner): Calculate your German state pension: pension points, deductions and net pension - [English version](https://rechenportal.de/en/pension-calculator) ### Blog Articles - [Calculating Your German State Pension: What You Will Really Receive](https://rechenportal.de/en/pension-calculator/blog/calculate-german-state-pension) *(pillar article)*: The complete guide to the German pension formula: pension points, access factor, pension value — and what actually lands in your account after health insurance, care insurance and tax. - [Pension Points Simply Explained](https://rechenportal.de/en/pension-calculator/blog/pension-points-explained): One pension point equals one year at the average wage. How points are earned, what they are worth in 2026 and why the contribution ceiling caps them. - [Retiring at 63: What the Early Exit Costs](https://rechenportal.de/en/pension-calculator/blog/retiring-at-63): 35 or 45 contribution years — that decides whether an early start costs a 14.4% deduction or is deduction-free. With worked examples in euros. - [Deductions and Bonuses: 0.3% per Month, and What That Means](https://rechenportal.de/en/pension-calculator/blog/deductions-and-bonuses): The access factor under § 77 SGB VI in figures: why the deduction is permanent, how the 0.5% bonus works and from when waiting pays off. - [Calculating and Closing Your Pension Gap](https://rechenportal.de/en/pension-calculator/blog/calculate-pension-gap): For most people a four-figure gap opens between the final net salary and the net pension. How to quantify it realistically and work out what closing it costs. ### FAQ - **How is the German state pension calculated?**: The pension formula is: sum of pension points × access factor × pension type factor × current pension value. The points reflect your income relative to the average wage of all insured people, the access factor accounts for an earlier or later start, the pension type factor is 1.0 for an old-age pension, and the current pension value has been €42.52 per point since 1 July 2026. Someone with 40 pension points retiring at the standard age therefore receives roughly €1,700 gross per month. - **What is a pension point and what is it worth?**: One pension point corresponds to a calendar year in which you earned exactly the average wage of all insured people — provisionally €51,944 in 2026. Earn half of that and you get 0.5 points; earn double and you get 2.0 points. At the top the contribution ceiling of €101,400 caps the annual gain at 1.9521 points. Each point currently raises the monthly gross pension by €42.52. - **How large is the deduction if I retire early?**: For every month you draw your pension before your standard retirement age, the access factor falls by 0.003 — a deduction of 0.3 percent per month or 3.6 percent per year. Starting at 63 with a standard age of 67 means 48 months × 0.3 percent = 14.4 percent. On a gross pension of €1,600 that is around €230 less per month. The deduction is permanent and later also reduces any survivor's pension. - **When can I retire at 63 or 65 without deductions?**: Two qualifying periods matter. With 35 qualifying years you can draw the pension for long-term insured from 63 — but with the full deduction up to the standard retirement age. With 45 qualifying years the pension for especially long-term insured applies: for everyone born in 1964 or later it is deduction-free at 65, two years before the standard age of 67. Qualifying periods include not only employment but also child-raising and care periods. - **Is it worth working longer and deferring the pension?**: If you draw your pension after the standard retirement age you receive a bonus of 0.5 percent for each month of deferral, i.e. 6 percent per year. If you also keep working you accumulate additional pension points at the same time — the two effects add up. Working one year longer can therefore raise the pension by 8 to 9 percent. Purely arithmetically it takes around 15 to 17 years for the bonus to offset the pension payments forgone; for people in good health who enjoy their work it pays off over the long run. - **How much tax will I pay on my pension?**: Only the taxable share is subject to tax, and that share depends on the year your pension starts. For a start in 2026 it is 84 percent, rising by 0.5 percentage points per cohort — 86 percent in 2030, 91 percent in 2040, with full taxation only from 2058. The tax-free remainder is fixed in euros as your pension allowance and does not change later. From the taxable pension you also deduct your health and care insurance contributions as special expenses; only what is left meets the income tax tariff with its basic allowance of €12,348. - **Which contributions are deducted from the pension?**: Compulsorily insured pensioners pay half the general health insurance rate of 7.3 percent plus half the supplementary rate; with an average supplementary rate of 2.9 percent in 2026 that comes to 8.75 percent. The pension insurance fund pays the other half. The care insurance contribution of 3.6 percent, however, is borne by pensioners alone; childless pensioners pay 4.2 percent, those with several children under 25 correspondingly less. On a gross pension of €1,600 that means about €198 for health and care insurance before any tax is due. - **How accurate is this pension calculator?**: The calculator implements the pension formula, the access factor under § 77 SGB VI, the age limits under §§ 235 and 236b SGB VI and the taxation rules of § 22 EStG correctly, using the verified 2026 figures. The uncertainty lies not in the formula but in the assumptions: your current salary is projected forward in a straight line, and future pension increases and gaps in your insurance record are left out. The closer your retirement date and the more precisely you enter your pension points from the official statement, the more reliable the result. Only the information issued by the German pension insurance is binding. --- ## Income Tax Calculator (Einkommensteuer-Rechner) - [Calculator](https://rechenportal.de/einkommensteuer-rechner): Calculate 2026 German income tax: single and joint tariff, solidarity and church tax - [English version](https://rechenportal.de/en/income-tax-calculator) ### Blog Articles - [Calculating German Income Tax 2026: Tariff, Zones and Allowances](https://rechenportal.de/en/income-tax-calculator/blog/calculate-income-tax-2026) *(pillar article)*: The complete guide to the 2026 income tax tariff: from gross income to taxable income, the five tariff zones of § 32a EStG and what really remains at the end. - [Basic Allowance 2026: How Much Stays Tax-Free?](https://rechenportal.de/en/income-tax-calculator/blog/basic-allowance-2026): €12,348 stays tax-free in 2026. Where the figure comes from, why it rises every year and how it works out for couples, pensioners and students. - [The Splitting Tariff: How Much Married Couples Really Save](https://rechenportal.de/en/income-tax-calculator/blog/splitting-tariff-couples): The splitting advantage grows with the income gap — and is exactly zero for couples who earn the same. With worked examples for typical constellations. - [Marginal vs. Average Tax Rate — the Most Important Difference](https://rechenportal.de/en/income-tax-calculator/blog/marginal-vs-average-tax-rate): A 42 percent top rate does not mean 42 percent on everything. What the marginal and average rates each tell you, and why extra work almost always pays. - [Solidarity Surcharge: Who Still Pays It in 2026](https://rechenportal.de/en/income-tax-calculator/blog/solidarity-surcharge-2026): Since 2021 roughly 90 percent of taxpayers no longer pay the soli. The 2026 exemption threshold, the transition zone and the income at which the surcharge returns. ### FAQ - **What is taxable income — and how do I get there?**: Taxable income is the figure the tax tariff is applied to. You get there by subtracting the deductible amounts from the sum of all income: work-related or business expenses, special expenses such as pension contributions and donations, extraordinary burdens, and various allowances. Employees get at least the €1,230 employee allowance and the €36 special expenses allowance. Income tax is charged only on that result — not on the gross salary. - **How high is the basic allowance in 2026?**: In 2026 the basic allowance is €12,348 per person under § 32a(1) EStG. Below that level of taxable income no income tax is due. For jointly assessed married couples and civil partners the amount doubles to €24,696, because the tariff is applied to half the combined income. The allowance protects the subsistence minimum from taxation and is therefore raised regularly. - **What is the difference between the marginal and the average tax rate?**: The marginal rate says how much tax falls on the next euro you earn. The average rate is total income tax divided by taxable income. Example: at €60,000 taxable income under the single tariff the marginal rate is already around 39 percent, while the average rate is just under 24 percent. The reason is the progressive tariff: the first €12,348 stay tax-free and later slices are taxed at rising rates. For what a pay rise leaves you, the marginal rate matters; for your total burden, the average rate does. - **From what income does the 42 percent top rate apply?**: The 42 percent top rate starts in 2026 at €69,879 of taxable income under the single tariff, and correspondingly at €139,758 under joint assessment. Importantly, 42 percent is not charged on the whole income — only the slice above that threshold is taxed at 42 percent. From €277,826 of taxable income the rate rises to 45 percent, the so-called wealth tax rate. - **How does the splitting tariff for married couples work?**: Under § 32a(5) EStG the couple's combined taxable income is halved, the ordinary single tariff is applied to that half, and the resulting tax is doubled. Because the tariff is progressive, this lowers the tax whenever the partners earn different amounts: part of the higher income notionally slides into the lower tariff zones of the other. If both earn exactly the same, the splitting advantage is zero. The maximum advantage occurs for a single-earner couple with a very high income and reaches several thousand euros a year. - **Who still pays the solidarity surcharge in 2026?**: In 2026 the solidarity surcharge only falls due once the assessed income tax exceeds €20,350 under single assessment or €40,700 under joint assessment (§ 3(3) SolZG). Under single assessment that corresponds roughly to taxable income from about €75,000. Just above the threshold the transition zone applies: the surcharge may not exceed 11.9 percent of the excess amount and therefore grows slowly until the regular 5.5 percent rate is reached. On investment income under the flat tax and on corporation tax the soli continues to apply unchanged. - **How is church tax calculated?**: Church tax is a surcharge on income tax: 8 percent in Baden-Württemberg and Bavaria, 9 percent in all other federal states. The base is the assessed income tax, not income itself. On €10,000 of income tax that is €800 or €900 respectively. Church tax paid is deductible as a special expense in the following year, which lowers the effective burden somewhat. Anyone not belonging to a tax-collecting religious community pays none. - **Why does the result differ from my tax assessment?**: This calculator applies the § 32a EStG tariff to the income you enter. Your assessment additionally reflects many individual items: child allowances and the comparison against child benefit, the progression proviso on parental, sick or unemployment benefits, extraordinary burdens, loss carry-forwards, tax reductions for tradesperson services, and wage tax and prepayments already made. Use the result as orientation and for planning — only the assessment from your tax office is binding. --- ## Trade Tax Calculator (Gewerbesteuer-Rechner) - [Calculator](https://rechenportal.de/gewerbesteuer-rechner): Calculate German trade tax: allowance, base amount, municipal rate and income tax credit - [English version](https://rechenportal.de/en/trade-tax-calculator) ### Blog Articles - [Calculating German Trade Tax: Allowance, Base Amount, Multiplier](https://rechenportal.de/en/trade-tax-calculator/blog/calculate-trade-tax-allowance-base-amount-multiplier) *(pillar article)*: The complete guide to German trade tax: from profit through additions and allowance to the base amount, the municipal multiplier and the income tax credit. - [The Multiplier: Why Your Municipality Decides Your Tax Burden](https://rechenportal.de/en/trade-tax-calculator/blog/municipal-multiplier-tax-burden): Between 200 and over 900 per cent: the multiplier is the one trade tax factor the federal government does not set. What that means for location choice and budgeting. - [The €24,500 Allowance — Who Gets It and Who Does Not](https://rechenportal.de/en/trade-tax-calculator/blog/allowance-24500-euros-who-gets-it): The trade tax allowance applies only to natural persons and partnerships. How it works, why it never produces a negative base and what that means for a limited company. - [The Credit Under Sec. 35 EStG: Why You Often Pay Less Than Expected](https://rechenportal.de/en/trade-tax-calculator/blog/trade-tax-credit-section-35-estg): Four times the base amount reduces your income tax. How the three caps interact, when an excess credit arises and how to avoid it. - [Sole Trader or Limited Company: What Trade Tax Really Changes](https://rechenportal.de/en/trade-tax-calculator/blog/sole-trader-or-limited-company-trade-tax): Allowance, credit, corporation tax and distributions: comparing trade tax for a sole trader and a corporation — with concrete figures. ### FAQ - **How is German trade tax calculated?**: In four steps. First, the profit from the business is increased by additions under sec. 8 GewStG and reduced by reductions under sec. 9 GewStG — the result is the trade income. Second, it is rounded down to full 100 euros and natural persons and partnerships deduct the allowance of 24,500 euros. Third, the remaining base is multiplied by the base rate of 3.5 per cent, giving the tax base amount. Fourth, the municipality multiplies that amount by its multiplier. With 60,000 euros of trade income and a multiplier of 400 per cent that is (60,000 − 24,500) × 3.5% × 4.0 = 4,970 euros. - **From what profit do I start paying trade tax?**: As a sole trader or partnership you only pay from a trade income above 24,500 euros. Below that the allowance applies, capped at the trade income itself — so it never creates a loss carry-forward. At 24,600 euros of trade income the base is 100 euros, the base amount 3.50 euros and the trade tax at a 400 per cent multiplier 14 euros. Corporations such as a GmbH or UG have no allowance and pay from the first euro of trade income. - **What is the multiplier and who sets it?**: The multiplier is the percentage by which the municipality multiplies the tax base amount. Every municipality sets it by by-law; the statutory minimum is 200 per cent (sec. 16 para. 4 GewStG) and there is no upper limit. In large German cities rates are typically between 410 and 540 per cent, and the average for municipalities above 20,000 inhabitants was most recently 438 per cent. Because municipalities can change their multiplier at the turn of the year, check the current figure with your municipality before relying on it. - **How does the credit under sec. 35 EStG work?**: Sole traders and partners may deduct four times the trade tax base amount from their income tax. Three caps apply simultaneously and the lowest wins: four times the base amount, the trade tax actually paid, and the maximum relief amount, i.e. the income tax attributable to the business income. Up to a multiplier of 400 per cent the trade tax equals exactly four times the base amount — the burden is then arithmetically neutral, provided your income tax is high enough. - **Why is the credit worth less at high multipliers?**: Because the credit is firmly capped at four times the base amount while the trade tax keeps rising with the multiplier. At 400 per cent the two match exactly. At 500 per cent you pay five times the base amount but only four times is credited — one fifth remains as a real additional burden. With a base amount of 1,500 euros that is 1,500 euros of trade tax that is no longer offset. This excess is exactly what the calculator shows as your effective burden. - **Do freelancers have to pay trade tax?**: No. Trade tax only covers a standing commercial business. Freelance activities under sec. 18 EStG — doctors, lawyers, architects, tax advisers, journalists or teaching activities — are outside its scope, as are agriculture, forestry and purely asset-managing activities. Take care when freelance and commercial activities are mixed: in a partnership even a small commercial activity can taint all income as commercial. Have this checked professionally if in doubt. - **What are additions and reductions?**: They turn the taxable profit into the trade income, because trade tax is meant to capture the yield of the business regardless of how it is financed. Under sec. 8 no. 1 GewStG one quarter of the sum of certain financing components is added back — interest in full, 20 per cent of rents for movable and 50 per cent of rents for immovable assets, and 25 per cent of licence fees. That sum is exempt up to 200,000 euros. Reductions include 1.2 per cent of the assessed value of business real estate (sec. 9 no. 1 GewStG). - **How accurate is this trade tax calculator?**: The calculator reproduces the statutory route exactly: rounding down to full 100 euros, the 24,500 euro allowance for natural persons and partnerships only, the 3.5 per cent base rate and multiplication by the municipal multiplier. For the credit under sec. 35 EStG it makes one simplification: it assumes your business income is your only income and that the profit equals your taxable income. If you have other income, special expenses or loss carry-forwards, the maximum relief amount shifts. The result is a non-binding estimate and does not replace tax advice. --- ## Hourly Wage Calculator (Stundenlohn-Rechner) - [Calculator](https://rechenportal.de/stundenlohn-rechner): Convert monthly salary to hourly wage and back, including a minimum wage check - [English version](https://rechenportal.de/en/hourly-wage-calculator) ### Blog Articles - [Calculating Your Hourly Wage: The Right Formula and the Most Common Mistakes](https://rechenportal.de/en/hourly-wage-calculator/blog/calculate-hourly-wage-formula) *(pillar article)*: The complete guide to converting a monthly salary into an hourly rate: the 4.345 factor, why dividing by 160 is wrong, and how to work out your real hourly rate. - [Minimum Wage 2026: Level, Exemptions and Enforcement](https://rechenportal.de/en/hourly-wage-calculator/blog/minimum-wage-2026): €13.90 per hour since January 2026, €14.60 from 2027: who is entitled, which exemptions apply, how it is enforced and what to do if you are underpaid. - [Part-Time Work: Converting Hourly Pay and Salary Correctly](https://rechenportal.de/en/hourly-wage-calculator/blog/part-time-hourly-wage-conversion): Cutting from 40 to 30 hours, comparing a part-time offer or deriving part-time pay from a full-time salary — with worked examples. - [Unpaid Overtime: What It Really Costs Your Hourly Rate](https://rechenportal.de/en/hourly-wage-calculator/blog/unpaid-overtime-hourly-wage): Five extra hours a week cut your hourly rate by more than eleven percent. How large the loss really is and when overtime has to be paid. - [Annual Working Time: From 52.143 Weeks to Your Real Hourly Rate](https://rechenportal.de/en/hourly-wage-calculator/blog/annual-working-hours-52-weeks): Why a year has 52.143 weeks, how many of those hours are genuinely worked, and how the self-employed derive a viable hourly rate from them. ### FAQ - **How do I convert my monthly salary into an hourly rate?**: Divide your gross monthly salary by your average monthly hours. Those follow from your weekly hours multiplied by the factor 4.345 — that is 365 days divided by 7 days divided by 12 months. At 40 weekly hours this gives 173.8 monthly hours. A gross monthly salary of €3,200 therefore corresponds to an hourly rate of roughly €18.41. The commonly used approximation of 160 hours per month is too low and makes the hourly rate look about eight percent higher than it is. - **Why 4.345 and not 4.33 weeks per month?**: A year has 365 days and therefore 52.143 weeks. Spread across twelve months that is 4.345 weeks a month. The value 4.33 comes from dividing 52 weeks by 12 and ignores the extra day beyond the full 52 weeks. Some collective agreements and employers nevertheless use 4.33 or fixed monthly hours such as 173 or 174. The difference is around 0.3 percent — about five cents on an hourly rate of €18. Irrelevant for comparing two offers, but it can matter for a borderline minimum wage check. - **What is the difference between the contractual and the real hourly rate?**: The contractual hourly rate divides gross monthly pay by the agreed monthly hours — it treats holiday and public holiday hours as if you had worked them. The real hourly rate deducts those days and counts only the hours you genuinely spend working. With 30 holiday days and 10 public holidays that is around 40 of 261 working days fewer, a good 15 percent. Conversely, unpaid overtime pushes the figure back down. Taken together, both effects give a realistic picture of what an hour of work actually earns. - **How high is the statutory minimum wage in 2026?**: The statutory minimum wage has been €13.90 gross per hour since 1 January 2026. Before that it was €12.82, so the increase is around 8.4 percent. The legal basis is the fifth minimum wage adjustment ordinance of 5 November 2025. In a second step the minimum wage rises to €14.60 on 1 January 2027. On a 40-hour week the 2026 minimum wage corresponds to gross monthly pay of roughly €2,416. - **Who is not covered by the minimum wage?**: Exempt are, among others, trainees in a recognised vocational training programme, for whom a minimum training allowance applies instead, and people under 18 without completed vocational training. Also exempt are mandatory internships as part of school or university education, orientation internships of up to three months, volunteers, and the long-term unemployed during the first six months of a new job. Mini-jobbers and part-time employees, by contrast, are fully covered. - **How does the minimum wage affect the mini-job threshold?**: Since 2022 the mini-job threshold has been dynamically linked to the minimum wage: it equals the minimum wage multiplied by 130 and divided by 3, rounded up to whole euros. With a minimum wage of €13.90 this gives an earnings limit of €603 a month, or €7,236 a year, for 2026. The idea behind it is that a mini-job should allow ten weekly hours at the minimum wage year-round. Anyone earning more moves into the midi-job transition zone. - **Do unpaid overtime hours count towards the minimum wage?**: Yes. The minimum wage applies to every hour actually worked. Anyone regularly working longer without pay arithmetically lowers their hourly rate — and can drop below the minimum wage threshold even though the agreed monthly salary is above it. That is why this calculator explicitly compares the minimum wage with the hourly rate including unpaid extra work. Employers are also obliged to record the working time of certain groups of employees; those records are your most important evidence in a dispute. - **How accurate is this hourly wage calculator?**: The calculator uses the customary conversion factors (52.143 weeks a year, 4.345 weeks a month) and the minimum wage of €13.90 in force since January 2026. All results are gross figures before tax and social security contributions. Deviations arise if your collective agreement prescribes different factors or fixed monthly hours, if you receive shift premiums, allowances or variable pay, or if your working time fluctuates strongly. For converting job offers and for a first minimum wage check the calculation is meaningful; it does not, however, replace a payslip or legal advice. --- ## Widow's Pension Calculator (Witwenrente-Rechner) - [Calculator](https://rechenportal.de/witwenrente-rechner): Calculate German widow's pension: large and small pension, grace quarter and income offsetting - [English version](https://rechenportal.de/en/widow-pension-calculator) ### Blog Articles - [Calculating the Widow's Pension in 2026: Amount, Conditions, Offsetting](https://rechenportal.de/en/widow-pension-calculator/blog/calculate-widow-pension-2026) *(pillar article)*: The complete guide to German survivors' pensions: the grace quarter, large and small widow's pension, the €1,122.53 allowance and the 40 percent offsetting rule. - [Large or Small Widow's Pension — What You Are Entitled To](https://rechenportal.de/en/widow-pension-calculator/blog/large-or-small-widow-pension): 55 percent or only 25? Age, child-rearing and reduced earning capacity decide. And why marriages before 2002 can even reach 60 percent. - [The Grace Quarter: The First Three Months](https://rechenportal.de/en/widow-pension-calculator/blog/grace-quarter-first-three-months): For three months you receive the deceased's full pension with no income offsetting. How the advance payment works and what happens afterwards. - [Income Offsetting: How Much of Your Income Is Deducted](https://rechenportal.de/en/widow-pension-calculator/blog/income-offsetting-widow-pension): Allowance, flat deduction and the 40 percent rule step by step — with worked examples for salary, your own pension and rental income. - [Orphan's Pension: What Children Are Entitled To](https://rechenportal.de/en/widow-pension-calculator/blog/orphan-pension-children): Half-orphan and full-orphan pensions, the extension to the 27th birthday and why a child's own income usually no longer matters. ### FAQ - **How high is the widow's pension in 2026?**: For the first three calendar months after the month of death — the grace quarter — you receive your late spouse's or partner's full pension, that is 100 percent. From the fourth month it drops to 55 percent for the large widow's pension and 25 percent for the small one. If your partner received €1,600, that is €1,600 gross at first and then €880 with the large widow's pension. For marriages concluded before 2002 in which one partner was born before 2 January 1962, 60 percent applies instead of 55. - **What is the difference between the large and small widow's pension?**: The large widow's pension is 55 percent of the deceased's pension and is paid without a time limit. It requires that you are raising a child under 18, have a reduced earning capacity, or have reached the age threshold — for a death in 2026 that is 46 years and 6 months. Anyone who meets none of these conditions receives the small widow's pension at 25 percent, for at most 24 calendar months. Once you later reach the age threshold or become unable to work, you can move to the large widow's pension. - **How much can I earn alongside the widow's pension?**: Since 1 July 2026 the monthly allowance is €1,122.53 — 26.4 times the current pension value of €42.52. Each child eligible for an orphan's pension adds €238.11. What counts is not your gross income but a flat-rate net figure: 40 percent is deducted from employment income, only 14 percent from your own state pension. A gross salary of around €1,870 therefore stays entirely free of offsetting. Only the amount above that is offset at 40 percent against the widow's pension. - **What exactly is the grace quarter?**: The grace quarter covers the three calendar months following the month of death. During this time the widow's pension is calculated with a pension type factor of 1.0, so you receive the deceased's full pension. Your own income is not offset at all in those three months, because offsetting under § 97 SGB VI only starts once the factor falls below 1.0. The idea is to cushion the transition period, when funeral costs, estate matters and ongoing fixed costs all arrive at once. - **By when do I have to apply for the widow's pension?**: The pension is not paid automatically; you have to apply. If you apply within twelve calendar months of the month of death, it is paid retroactively from the date of death. After that it only starts in the month of application — lost months cannot be recovered. For the grace quarter you can additionally request an advance, usually paid within a few days. You will need the death certificate, the marriage certificate and both partners' insurance numbers, among other documents. - **What happens to the widow's pension if I remarry?**: Remarriage ends the claim at the end of the month of the wedding. You can then apply for a one-off settlement worth 24 times the last monthly widow's pension. If the new marriage is later divorced or annulled, a revived pension from the first marriage can arise — though the settlement is then offset against it. Report the marriage promptly in any case, otherwise repayment demands can follow. - **Do I have to pay tax and contributions on the widow's pension?**: Yes, in both cases. The pension insurance withholds health and care insurance contributions from the gross widow's pension: 7.3 percent health insurance plus half your fund's additional contribution — on average 1.45 percent in 2026 — and 3.6 percent care insurance, or 4.2 percent for childless people aged 23 and over. For tax purposes the widow's pension counts as other income; the portion above your personal pension allowance is taxable. Whether tax is actually due depends on your total income. - **How accurate is this widow's pension calculator?**: The calculator reproduces the statutory rules of SGB VI: the pension type factors from §§ 67 and 255, the 24-month limit on the small pension from § 46, the child-rearing supplement from § 78a, the allowance and the 40 percent offsetting from § 97, and the flat deductions from § 18b SGB IV. It is based on the current pension value of €42.52 from 1 July 2026. What the calculator cannot know is your individual contribution record: deductions, imputed periods, pension splitting or an equalisation from an earlier marriage can shift the result noticeably. Treat the result as orientation — only the pension insurance's official notice is binding. --- ## Holiday Entitlement Calculator (Urlaubsanspruch-Rechner) - [Calculator](https://rechenportal.de/urlaubsanspruch-rechner): Calculate holiday days: statutory entitlement, part-time and pro-rata leave on joining or leaving - [English version](https://rechenportal.de/en/holiday-entitlement-calculator) ### Blog Articles - [Calculating Holiday Entitlement: Statutory, Contractual, Pro-Rata](https://rechenportal.de/en/holiday-entitlement-calculator/blog/calculating-holiday-entitlement-guide) *(pillar article)*: The complete guide to German holiday entitlement: 24 working days under § 3 BUrlG, conversion to any working week, the qualifying period, twelfths and the rounding rule in § 5 (2) BUrlG. - [Converting Holiday Entitlement for Part-Time Work](https://rechenportal.de/en/holiday-entitlement-calculator/blog/part-time-holiday-conversion): For part-time work the number of working days counts, not the weekly hours. How to convert correctly, what happens when your pattern changes and which mistakes cost money. - [Remaining Leave: When It Expires and When It Does Not](https://rechenportal.de/en/holiday-entitlement-calculator/blog/remaining-leave-expiry-carry-over): Carry-over until 31 March, the employer's duty to give notice following European Court of Justice case law, and what applies during long-term illness. - [Holiday on Termination: Twelfths and Pay-Out](https://rechenportal.de/en/holiday-entitlement-calculator/blog/holiday-on-termination-payout): Leaving in the first half of the year means twelfths — leaving in the second half often means the full entitlement. How the pay-out under § 11 BUrlG is calculated and taxed. - [Falling Ill on Holiday: Reclaiming Your Days](https://rechenportal.de/en/holiday-entitlement-calculator/blog/sick-during-holiday-reclaim-days): Falling ill on holiday does not cost you the days — § 9 BUrlG protects them. Which certificate you need, from when it counts and why you must not extend the holiday yourself. ### FAQ - **What is the statutory minimum number of holiday days?**: § 3 (1) BUrlG names 24 working days per year. Working days are all calendar days except Sundays and public holidays, so Saturdays count too — the law assumes a six-day week. Anyone working five days a week is therefore entitled to 20 working days of leave (24 ÷ 6 × 5). On a four-day week that is 16 days, on a three-day week 12. Under § 13 BUrlG this minimum cannot be waived: a contract may grant more leave, never less. - **How do I convert my holiday entitlement for part-time work?**: What matters is solely the number of weekdays on which you work, not the weekly hours. The formula is: leave days = contractual leave × your working days ÷ 5. Someone with 30 days in the contract who reduces to three days a week ends up with 18 days (30 × 3 ÷ 5). Someone who reduces hours but still works five days keeps all 30 days — just with shorter days. The calculator on this page does exactly this conversion for you. - **What does the six-month qualifying period mean?**: Under § 4 BUrlG the full entitlement arises for the first time once the employment has lasted six months. Before that you do not have zero leave but partial leave of one twelfth per full month of employment. The consequence for your first year matters: anyone starting by 1 July completes the qualifying period within the same calendar year and is then entitled to the full annual leave, not merely a time-proportional share. Anyone starting in August or later receives twelfths for that year. - **How exactly does the twelfths rule work?**: § 5 (1) BUrlG grants one twelfth of the annual leave for each full month of employment in three cases: when the qualifying period can no longer be completed in the calendar year, when you leave before completing it, and when you leave in the first half of the year after completing it. Example: 30 contractual days, starting on 1 September — that is four full months, so 30 × 4 ÷ 12 = 10 days. If instead you leave in July or later, the full annual entitlement stands. - **Are fractions of holiday days rounded up or down?**: § 5 (2) BUrlG is unambiguous: fractions of holiday days amounting to at least half a day must be rounded up to full days. The law provides no rounding down. If the calculation gives 12.5 days, that becomes 13. If it gives 12.3 days, it stays 12.3 — the fraction is not forfeited but can be requested as a part day or paid out at the end. This rule covers the statutory minimum; different rounding may be agreed for contractual extra leave. - **When does my remaining leave expire?**: Leave must in principle be taken within the calendar year. Under § 7 (3) BUrlG a carry-over is only permitted for urgent operational or personal reasons — and the leave must then be taken by 31 March. Decisive, however, is the case law of the European Court of Justice, which the German courts have followed: leave only expires if the employer gave you clear and timely notice of the outstanding days and of the looming forfeiture. Without that notice the days accumulate. - **How much is the holiday pay-out on termination?**: If leave can no longer be taken because the employment ends, § 7 (4) BUrlG requires it to be paid out. The daily rate follows the holiday pay rule in § 11 (1) BUrlG: average earnings over the last 13 weeks, divided by 13 weeks and your working days per week. On 3,600 euros gross per month and a five-day week that gives (3,600 × 3) ÷ 13 ÷ 5 = roughly 166 euros per day. Ten outstanding days are therefore worth around 1,660 euros. Overtime pay is expressly excluded from this calculation. - **Which additional entitlements exist beyond the minimum?**: Two statutory add-ons matter most. Employees with a recognised severe disability receive five additional paid working days per year under § 208 (1) SGB IX, based on a five-day week and converted proportionally for other patterns. For young workers § 19 (2) JArbSchG applies a scale based on age at the start of the calendar year: at least 30 working days below 16, 27 below 17 and 25 below 18. The calculator on this page includes both on request. --- ## Short-Time Work Allowance Calculator (Kurzarbeitergeld-Rechner) - [Calculator](https://rechenportal.de/kurzarbeitergeld-rechner): Calculate German short-time work allowance: 60 or 67 percent of the net pay difference - [English version](https://rechenportal.de/en/short-time-work-calculator) ### Blog Articles - [Calculating German Short-Time Work Allowance 2026: Amount, Duration, Conditions](https://rechenportal.de/en/short-time-work-calculator/blog/short-time-work-allowance-2026-explained) *(pillar article)*: The complete guide to Germany's short-time work allowance: who is entitled, how the net pay difference arises, how long it is paid and what applies in 2026 — with worked examples. - [60 or 67 Per Cent: How High the Allowance Really Is](https://rechenportal.de/en/short-time-work-calculator/blog/60-or-67-per-cent-short-time-allowance): The benefit rate hinges on a single criterion — a child within the meaning of § 32 EStG. Why you never receive 60 per cent of gross anyway, and what the difference is actually worth. - [The Progression Proviso: Why Short-Time Work Leads to a Tax Back Payment](https://rechenportal.de/en/short-time-work-calculator/blog/progression-proviso-short-time-work-back-payment): The allowance is tax-free — and still raises your tax bill. How the progression proviso works, how large the back payment gets, and how to prepare for it. - [Holiday and Short-Time Work: What Happens to Your Entitlement](https://rechenportal.de/en/short-time-work-calculator/blog/holiday-and-short-time-work): With zero-hours short-time work, holiday entitlement can be cut pro rata. What the Federal Labour Court decided, how holiday pay is calculated and what to watch out for. - [A Side Job During Short-Time Work: What Gets Offset](https://rechenportal.de/en/short-time-work-calculator/blog/side-job-during-short-time-work): Earning extra during short-time work usually means an offset. The difference between an old and a new side job, the mini-job rule and what has applied since 2022. ### FAQ - **How high is the short-time work allowance in 2026?**: Under § 105 SGB III the allowance is 60 per cent of the net pay difference, or 67 per cent with at least one child within the meaning of § 32 EStG. What counts is not your gross pay but the difference between the flat-rate net derived from your target pay and the flat-rate net derived from your actual pay. The temporary pandemic increases to 70/77 and 80/87 per cent expired on 30 June 2022 and no longer apply in 2026. - **What are target pay and actual pay?**: Target pay is the gross pay you would have earned in the claim period without the loss of work — excluding overtime pay and one-off payments. Actual pay is the gross you genuinely earned that month, increased by certain offsettable income. Both amounts are rounded to the nearest euro figure divisible by 20 and then converted into a flat-rate net. The difference between those two net figures is the basis for the allowance. - **Why don't I simply get 60 per cent of my salary?**: Because the 60 per cent do not refer to your salary but only to the net shortfall. With hours cut by 50 per cent you still receive the net from half your gross — and the allowance is added on top of the half you lost. In total you therefore typically end up at 75 to 85 per cent of your usual net, not at 60 per cent. The reason is tax progression: the lost pay would have carried above-average deductions anyway. - **Do I have to pay tax on the allowance?**: The allowance itself stays tax-free. It is, however, subject to the progression proviso under § 32b EStG: it is added to the rest of your taxable income to determine your personal tax rate, and that higher rate is then applied to your taxable income. Because only ordinary wage tax was withheld during the year, this often produces a back payment. If wage replacement benefits exceed €410 in a calendar year you are obliged to file a tax return. - **For how long is the allowance paid?**: By statute the entitlement runs for a maximum of twelve months under § 104 SGB III. For 2026 the federal government extended it by decree to up to 24 months, at the latest until 31 December 2026. If short-time work pauses for at least one continuous month, the reference period is extended accordingly. After a three-month interruption a new entitlement period begins if the conditions are met again. - **What happens to my social insurance during short-time work?**: You remain covered by health, long-term care and pension insurance throughout. Contributions on the actual pay run as usual. For the lost pay a notional wage of 80 per cent of the difference between target and actual pay is used; the employer alone bears the resulting health, care and pension contributions. No unemployment insurance contributions are due on the notional wage. Your pension entitlements therefore fall only slightly. - **May I take a side job during short-time work?**: Yes, but it is usually offset. Pay from employment you only took up while receiving the allowance increases your actual pay under § 106 (3) SGB III and therefore reduces the allowance almost one for one. A side job you already held before short-time work began remains exempt from offsetting. The temporary pandemic exemption for newly started mini-jobs expired on 30 June 2022. You should also clear any side job with your employer in advance. - **How accurate is this short-time work calculator?**: The calculator reproduces the logic of §§ 105, 106 and 153 SGB III: rounding target and actual pay to full €20 steps, capping at the €8,450 monthly contribution ceiling, and a flat-rate net of gross minus a 20 per cent social insurance flat rate, wage tax under the 2026 income tax tariff and the solidarity surcharge. The employment agency's official tables are based on the finance ministry's payroll program specification, so small deviations of a few euros are possible. The result is a non-binding estimate and does not replace legal or tax advice. --- ## Category Hubs - [Taxes & Salary](https://rechenportal.de/steuern-gehalt) (29 calculators) | EN: https://rechenportal.de/en/taxes-salary - [Housing & Moving](https://rechenportal.de/wohnen-umzug) (10 calculators) | EN: https://rechenportal.de/en/housing-moving - [Family & Social](https://rechenportal.de/familie-soziales) (18 calculators) | EN: https://rechenportal.de/en/family-social - [Building & DIY](https://rechenportal.de/bauen-handwerk) (6 calculators) | EN: https://rechenportal.de/en/building-diy - [Health & Nutrition](https://rechenportal.de/gesundheit-ernaehrung) (8 calculators) | EN: https://rechenportal.de/en/health-nutrition - [Math & Calculators](https://rechenportal.de/mathematik-rechner) (5 calculators) | EN: https://rechenportal.de/en/math-calculators ## Legal - [Impressum (Legal Notice)](https://rechenportal.de/impressum) - [Datenschutz (Privacy Policy)](https://rechenportal.de/datenschutz)