# Rechenportal.de > Rechenportal.de is Germany's free, independent calculator portal with 68 specialized calculators — all updated for 2026 German law. No registration required. Available in German and English. 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 an FAQ section. ## Calculators — Taxes & Salary - [Gross-to-Net Salary Calculator](https://rechenportal.de/brutto-netto-rechner): From gross to net in seconds. EN: https://rechenportal.de/en/salary-calculator - [Vehicle Tax Calculator](https://rechenportal.de/kfz-steuer-rechner): Calculate vehicle tax and compare cars. EN: https://rechenportal.de/en/kfz-tax-calculator - [Side Income Tax Calculator](https://rechenportal.de/nebenjob-rechner): How much do you keep from side income?. EN: https://rechenportal.de/en/side-income-tax-calculator - [Inheritance Tax Calculator](https://rechenportal.de/erbschaftsteuer-rechner): Calculate inheritance & gift tax. EN: https://rechenportal.de/en/inheritance-tax-calculator - [Property Tax Calculator](https://rechenportal.de/grundsteuer-rechner): Calculate your new property tax. EN: https://rechenportal.de/en/property-tax-calculator - [Freelance Rate Calculator](https://rechenportal.de/freelance-stundensatz-rechner): Calculate your fair freelance hourly rate. EN: https://rechenportal.de/en/freelance-rate-calculator - [Usage Rights Calculator](https://rechenportal.de/nutzungsrechte-rechner): Calculate fair usage rights for your creative work — with factor-based calculation following AGD guidelines.. EN: https://rechenportal.de/en/usage-rights-calculator - [Fuel Cost Calculator](https://rechenportal.de/spritkosten-rechner): Calculate fuel costs per trip and annually. EN: https://rechenportal.de/en/fuel-cost-calculator - [Inflation Calculator](https://rechenportal.de/inflationsrechner): Calculate purchasing power loss and price trends. EN: https://rechenportal.de/en/inflation-calculator - [Tax Refund Calculator](https://rechenportal.de/steuererstattung-rechner): Calculate your tax refund quickly and easily. EN: https://rechenportal.de/en/tax-refund-calculator - [Bitcoin Production Cost Calculator](https://rechenportal.de/bitcoin-produktionskosten-rechner): Calculate production cost floor: hashrate, energy costs, halving projection. EN: https://rechenportal.de/en/bitcoin-production-cost-calculator - [Severance Pay Calculator](https://rechenportal.de/abfindungsrechner): Calculate severance pay: fifth-part rule, tax burden, optimization tips. EN: https://rechenportal.de/en/severance-calculator - [ETF Savings Plan Calculator](https://rechenportal.de/etf-sparplan-rechner): Simulate ETF savings plans: compound interest, scenarios, withdrawal planning. EN: https://rechenportal.de/en/etf-savings-plan-calculator - [Midijob Calculator](https://rechenportal.de/midijob-rechner): Calculate Midijob net pay: transition zone, social insurance savings, pension. EN: https://rechenportal.de/en/midijob-calculator - [Company Bike Calculator](https://rechenportal.de/dienstrad-rechner): Calculate company bike leasing: salary sacrifice savings, employer benefits. EN: https://rechenportal.de/en/company-bike-calculator - [Startup Cost Calculator](https://rechenportal.de/startup-kosten-rechner): Calculate startup costs: legal form, burn rate, runway, break-even. EN: https://rechenportal.de/en/startup-cost-calculator - [Active Pension Calculator](https://rechenportal.de/aktivrente-rechner): Calculate the 2026 Active Pension: up to €2,000 wage tax-free, net comparison, tax savings. EN: https://rechenportal.de/en/active-pension-calculator - [Commuter Allowance Calculator](https://rechenportal.de/pendlerpauschale-rechner): 2026 commuter allowance: 38 cents from the first kilometre — deductions & real tax saving. EN: https://rechenportal.de/en/commuter-allowance-calculator - [EV Premium Calculator](https://rechenportal.de/eauto-praemie-rechner): Work out your 2026 German EV purchase premium — base, family and income bonus, up to €6,000. EN: https://rechenportal.de/en/ev-premium-calculator - [Overtime Calculator](https://rechenportal.de/ueberstunden-rechner): Calculate overtime surcharge and net payout — current vs. planned law compared. EN: https://rechenportal.de/en/overtime-calculator - [Compound Interest Calculator](https://rechenportal.de/zinseszinsrechner): Calculate compound interest: lump sum, savings rate, interest gain & compounding effect. EN: https://rechenportal.de/en/compound-interest-calculator - [Tax Class Calculator](https://rechenportal.de/steuerklassen-rechner): Find the best tax class combination for couples: III/V, IV/IV or factor method. EN: https://rechenportal.de/en/tax-class-calculator ## Calculators — Housing & Moving - [Housing Benefit Calculator](https://rechenportal.de/wohngeld-rechner): Check your housing benefit eligibility. EN: https://rechenportal.de/en/housing-benefit-calculator - [Mortgage Calculator](https://rechenportal.de/immobilienkredit-rechner): Calculate your mortgage with amortization schedule. EN: https://rechenportal.de/en/mortgage-calculator - [Renovation Cost Calculator](https://rechenportal.de/renovierungskosten-rechner): Calculate renovation costs with KfW subsidies. EN: https://rechenportal.de/en/renovation-cost-calculator - [Moving Cost Calculator](https://rechenportal.de/umzugskosten-rechner): Calculate all moving costs including hidden expenses. EN: https://rechenportal.de/en/moving-cost-calculator - [Roommate Calculator](https://rechenportal.de/wg-rechner): Split flatmate costs fairly. EN: https://rechenportal.de/en/roommate-calculator - [Cost of Living Calculator](https://rechenportal.de/lebenshaltungskosten-rechner): Compare cost of living worldwide. EN: https://rechenportal.de/en/cost-of-living-calculator - [Balcony Solar Calculator](https://rechenportal.de/balkonkraftwerk-rechner): Calculate balcony solar: yield, payback, self-consumption, CO₂ savings. EN: https://rechenportal.de/en/balcony-solar-calculator - [Heat Pump Calculator](https://rechenportal.de/waermepumpe-rechner): Calculate heat pump: costs, BAFA subsidies, payback, CO₂ savings. EN: https://rechenportal.de/en/heat-pump-calculator - [EV Cost Calculator](https://rechenportal.de/eauto-kostenrechner): EV vs. combustion: TCO comparison, subsidies, charging costs, CO₂ balance. EN: https://rechenportal.de/en/ev-cost-calculator - [Broadcasting Fee Calculator](https://rechenportal.de/rundfunkbeitrag-rechner): Calculate broadcasting fee: exemption, reduction, shared apartment split. EN: https://rechenportal.de/en/broadcasting-fee-calculator ## Calculators — Family & Social - [Basic Income Support Calculator](https://rechenportal.de/buergergeld-rechner): Calculate your basic income support (formerly Bürgergeld) eligibility. EN: https://rechenportal.de/en/citizens-income-calculator - [Divorce Cost Calculator](https://rechenportal.de/scheidungskosten-rechner): Calculate and compare divorce costs. EN: https://rechenportal.de/en/divorce-cost-calculator - [Child Support Calculator](https://rechenportal.de/unterhaltsrechner): Calculate child support using the Düsseldorf Table. EN: https://rechenportal.de/en/child-support-calculator - [Care Allowance Calculator](https://rechenportal.de/pflegegeld-rechner): Calculate care allowance & combined benefits. EN: https://rechenportal.de/en/care-allowance-calculator - [Wedding Cost Calculator](https://rechenportal.de/hochzeitskosten-rechner): Plan your wedding budget with regional prices. EN: https://rechenportal.de/en/wedding-cost-calculator - [Parental Allowance (Elterngeld) Calculator](https://rechenportal.de/elternzeit-rechner): Calculate your German Elterngeld (parental allowance) 2026: basic & Plus, with monthly income overview for parental leave. EN: https://rechenportal.de/en/parental-leave-calculator - [School Year Cost Calculator](https://rechenportal.de/schuljahr-kosten-rechner): Calculate all school costs: supplies, lunch, transport, after-school care, class trips. EN: https://rechenportal.de/en/school-year-cost-calculator - [University Cost Calculator](https://rechenportal.de/studienkosten-rechner): Plan your studies: semester costs, living expenses, BAföG, financing gap. EN: https://rechenportal.de/en/university-cost-calculator - [Health Insurance Comparison Calculator](https://rechenportal.de/gkv-pkv-rechner): Compare statutory vs. private health insurance: costs, long-term projection. EN: https://rechenportal.de/en/health-insurance-calculator - [Sick Pay Calculator](https://rechenportal.de/krankengeld-rechner): Calculate sick pay: continued pay, block period, exhaustion of benefits. EN: https://rechenportal.de/en/sick-pay-calculator - [Breakup or Wedding?](https://rechenportal.de/beziehungsrechner): The relationship check: How stable is your relationship really?. EN: https://rechenportal.de/en/relationship-quiz - [Child Cost Calculator](https://rechenportal.de/kinderkosten-rechner): What does raising a child cost from 0-18? Childcare, clothing, education. EN: https://rechenportal.de/en/child-cost-calculator - [Pet Cost Calculator](https://rechenportal.de/haustierkosten-rechner): What does a pet cost? Dog, cat, small animal — monthly and lifetime. EN: https://rechenportal.de/en/pet-cost-calculator - [Early-Start Pension Calculator](https://rechenportal.de/fruehstart-rente-rechner): Calculate the planned Early-Start Pension: what €10 a month grows into by retirement. EN: https://rechenportal.de/en/early-start-pension-calculator - [Due Date Calculator](https://rechenportal.de/geburtstermin-rechner): Calculate your due date with the Naegele rule — incl. pregnancy week, trimester & maternity leave. EN: https://rechenportal.de/en/due-date-calculator - [Ovulation Calculator](https://rechenportal.de/eisprung-zyklus-rechner): Calculate fertile days, ovulation & next period — not a contraception method. EN: https://rechenportal.de/en/ovulation-calculator - [Driver's License Cost Calculator](https://rechenportal.de/fuehrerschein-kosten-rechner): What does a driving license cost? Calculate all costs: lessons, fees, exams. EN: https://rechenportal.de/en/drivers-license-cost-calculator ## Calculators — Building & DIY - [3-4-5 Method Calculator](https://rechenportal.de/345-methode): Check right angles using the Pythagorean theorem. EN: https://rechenportal.de/en/345-methode - [Material Needs Calculator](https://rechenportal.de/materialbedarf-rechner): Calculate tiles, paint, flooring & bulk materials. EN: https://rechenportal.de/en/materialbedarf-rechner - [Staircase Calculator](https://rechenportal.de/treppen-rechner): Calculate rise, run & DIN 18065 compliance. EN: https://rechenportal.de/en/staircase-calculator - [Slope Calculator](https://rechenportal.de/gefaelle-rechner): Calculate slope with DIN standard compliance. EN: https://rechenportal.de/en/slope-calculator - [Roof Calculator](https://rechenportal.de/dachrechner): Calculate roof area, rafter length & snow load. EN: https://rechenportal.de/en/roof-calculator - [Mixing Ratio Calculator](https://rechenportal.de/mischungsrechner): Concrete, mortar, epoxy & more — exact mixing ratios. EN: https://rechenportal.de/en/mixing-calculator ## Calculators — Health & Nutrition - [Calorie Calculator](https://rechenportal.de/kalorienrechner): Calculate your calorie needs with macro split. EN: https://rechenportal.de/en/calorie-calculator - [BMI Calculator](https://rechenportal.de/bmi-rechner): Calculate and interpret your Body Mass Index. EN: https://rechenportal.de/en/bmi-calculator - [Macronutrient Calculator](https://rechenportal.de/makronaehrstoff-rechner): Calculate macros for your nutrition goal. EN: https://rechenportal.de/en/macro-calculator - [Water Intake Calculator](https://rechenportal.de/trinkmenge-rechner): Calculate your personal daily water intake. EN: https://rechenportal.de/en/water-intake-calculator - [Sleep Cycle Calculator](https://rechenportal.de/schlafzyklus-rechner): Calculate optimal bedtime: sleep cycles, hypnogram, sleep quality. EN: https://rechenportal.de/en/sleep-cycle-calculator - [Dental Cost Calculator](https://rechenportal.de/zahnersatz-rechner): Calculate dental costs: fixed subsidy, co-pay, bonus booklet, hardship. EN: https://rechenportal.de/en/dental-cost-calculator - [Blood Alcohol Calculator](https://rechenportal.de/promillerechner): Estimate blood alcohol (BAC) with the Widmark formula — no statement on fitness to drive. EN: https://rechenportal.de/en/blood-alcohol-calculator - [Ideal Weight & Body Fat Calculator](https://rechenportal.de/idealgewicht-koerperfett-rechner): Calculate ideal weight and body fat: Broca, Devine, BMI range & US Navy formula. EN: https://rechenportal.de/en/ideal-weight-body-fat-calculator ## Calculators — Math & Calculators - [Area Calculator](https://rechenportal.de/flaechenrechner): Calculate area and perimeter: rectangle, circle, triangle, trapezoid and more. EN: https://rechenportal.de/en/area-calculator - [Percentage Calculator](https://rechenportal.de/prozentrechner): Calculate percentages: base value, percentage, change, markup & discount. EN: https://rechenportal.de/en/percentage-calculator - [Fraction Calculator](https://rechenportal.de/bruchrechner): Add, subtract, multiply, divide, simplify and convert fractions. EN: https://rechenportal.de/en/fraction-calculator - [Rule of Three Calculator](https://rechenportal.de/dreisatz-rechner): Proportional, inverse and compound rule of three with step-by-step solution. EN: https://rechenportal.de/en/rule-of-three-calculator - [Age Calculator](https://rechenportal.de/alter-rechner): Calculate your exact age: years, months, days, days lived & countdown. EN: https://rechenportal.de/en/age-calculator ## Blog & Guides - [All Blog Articles](https://rechenportal.de/brutto-netto-rechner/blog): 398 in-depth articles across all 68 calculators, covering German tax law, housing benefits, family finances, health, math, and more. Each calculator has 5–7 articles including one comprehensive pillar guide. ## Category Hubs - [Taxes & Salary](https://rechenportal.de/steuern-gehalt) | EN: https://rechenportal.de/en/taxes-salary - [Housing & Moving](https://rechenportal.de/wohnen-umzug) | EN: https://rechenportal.de/en/housing-moving - [Family & Social](https://rechenportal.de/familie-soziales) | EN: https://rechenportal.de/en/family-social - [Building & DIY](https://rechenportal.de/bauen-handwerk) | EN: https://rechenportal.de/en/building-diy - [Health & Nutrition](https://rechenportal.de/gesundheit-ernaehrung) | EN: https://rechenportal.de/en/health-nutrition - [Math & Calculators](https://rechenportal.de/mathematik-rechner) | EN: https://rechenportal.de/en/math-calculators ## Legal - [Impressum (Legal Notice)](https://rechenportal.de/impressum) - [Datenschutz (Privacy Policy)](https://rechenportal.de/datenschutz) ## Optional - [llms-full.txt](https://rechenportal.de/llms-full.txt): Comprehensive version with all 398 blog post titles, FAQ questions, and detailed feature lists per calculator.