Calculator Portal
112 free calculators for German finance. Accurate results, clearly explained.
Taxes & Salary
Gross-to-Net Salary Calculator
From gross to net in seconds
Vehicle Tax Calculator
Calculate vehicle tax and compare cars
Side Income Tax Calculator
How much do you keep from side income?
Inheritance Tax Calculator
Calculate inheritance & gift tax
Property Tax Calculator
Calculate your new property tax
Freelance Rate Calculator
Calculate your fair freelance hourly rate
Usage Rights Calculator
Calculate fair usage rights for your creative work — with factor-based calculation following AGD guidelines.
Fuel Cost Calculator
Calculate fuel costs per trip and annually
Inflation Calculator
Calculate purchasing power loss and price trends
Tax Refund Calculator
Calculate your tax refund quickly and easily
Bitcoin Production Cost Calculator
Calculate production cost floor: hashrate, energy costs, halving projection
Severance Pay Calculator
Calculate severance pay: fifth-part rule, tax burden, optimization tips
ETF Savings Plan Calculator
Simulate ETF savings plans: compound interest, scenarios, withdrawal planning
Midijob Calculator
Calculate Midijob net pay: transition zone, social insurance savings, pension
Company Bike Calculator
Calculate company bike leasing: salary sacrifice savings, employer benefits
Startup Cost Calculator
Calculate startup costs: legal form, burn rate, runway, break-even
Active Pension Calculator
Calculate the 2026 Active Pension: up to €2,000 wage tax-free, net comparison, tax savings
Commuter Allowance Calculator
2026 commuter allowance: 38 cents from the first kilometre — deductions & real tax saving
EV Premium Calculator
Work out your 2026 German EV purchase premium — base, family and income bonus, up to €6,000
Overtime Calculator
Calculate overtime surcharge and net payout — current vs. planned law compared
Compound Interest Calculator
Calculate compound interest: lump sum, savings rate, interest gain & compounding effect
Tax Class Calculator
Find the best tax class combination for couples: III/V, IV/IV or factor method
VAT Calculator
Calculate German VAT: gross to net and net to gross at 19% or 7%
Pension Calculator
Calculate your German state pension: pension points, deductions and net pension
Income Tax Calculator
Calculate 2026 German income tax: single and joint tariff, solidarity and church tax
Trade Tax Calculator
Calculate German trade tax: allowance, base amount, municipal rate and income tax credit
Hourly Wage Calculator
Convert monthly salary to hourly wage and back, including a minimum wage check
Holiday Entitlement Calculator
Calculate holiday days: statutory entitlement, part-time and pro-rata leave on joining or leaving
Short-Time Work Allowance Calculator
Calculate German short-time work allowance: 60 or 67 percent of the net pay difference
Working Hours Calculator
Calculate working hours per day & week with breaks, decimal hours and a German Working Hours Act check
Public Sector Salary Calculator
Calculate TVöD & TV-L pay 2026 — pay group, step, annual bonus and net salary
Pension Increase Calculator
Calculate the 2026 pension increase (+4.24%): new gross & net pension, extra amount, tax check and 2027 forecast
Net Pension Calculator
Calculate your German net pension: pension tax, taxable share, health and care insurance and tax-free pension by start year
Interest Calculator
Simple & daily interest: solve for interest, principal, rate or time — with formula, worked solution and German default interest
Gold Value Calculator
Calculate gold value: 333, 585, 750 gold and silver — fine gold content, melt value & buy-back value
Company Car Calculator
German company car tax 2026 — 1% rule, EV 0.25%, hybrid 0.5%, logbook and net cost
Retirement Savings Account Calculator
Germany's retirement savings account from 2027: basic & child subsidy, tax benefit and value at retirement – vs. ETF plan
Retirement Age Calculator
When can you retire in Germany? Pension at 63, deduction-free pension after 45 years, statutory age and deduction in % and €
Part-Time Calculator
Calculate part-time pay 2026 — gross, net compared with full time, and holiday entitlement
Late Payment Interest Calculator
Calculate German default interest (§ 288 BGB) for several invoices to the day — with base rate table since 2002 and €40 flat fee
Withdrawal Plan Calculator
Calculate a withdrawal plan: how long your capital lasts, how much you can withdraw and how much you need for financial independence – with inflation & German capital gains tax
Notice Period Calculator
By when must you give notice? German notice periods for employment (§ 622 BGB, probation, contract, collective agreement) and leases (§ 573c BGB, 3rd working day) with holidays
Capital Gains Tax Calculator
Calculate German flat tax on interest, dividends, share gains and ETFs — with saver's allowance, partial exemption, loss pots, church tax and favourability test
Cash Discount Calculator
Calculate a cash discount: discount, amount payable, VAT correction (§ 17 UStG) and effective annual rate compared with your overdraft rate
Disability Pension Calculator
Calculate the German disability pension: full or partial pension with credited period, reduction, 2026 earnings limits and net pension
Usufruct Value Calculator
Calculate the capital value of a usufruct or right of residence under § 14 BewG with the 2026 multipliers — incl. gift tax comparison
Housing & Moving
Housing Benefit Calculator
Check your housing benefit eligibility
Mortgage Calculator
Calculate your mortgage with amortization schedule
Renovation Cost Calculator
Calculate renovation costs with KfW subsidies
Moving Cost Calculator
Calculate all moving costs including hidden expenses
Roommate Calculator
Split flatmate costs fairly
Cost of Living Calculator
Compare cost of living worldwide
Balcony Solar Calculator
Calculate balcony solar: yield, payback, self-consumption, CO₂ savings
Heat Pump Calculator
Calculate heat pump: costs, BAFA subsidies, payback, CO₂ savings
EV Cost Calculator
EV vs. combustion: TCO comparison, subsidies, charging costs, CO₂ balance
Broadcasting Fee Calculator
Calculate broadcasting fee: exemption, reduction, shared apartment split
Taxi Fare Calculator
Estimate taxi fares using the official tariff — 14 German cities, base fare, per-km rate, waiting time & city comparison
Tire Size & Wheel Calculator
Compare tire sizes: diameter, circumference & speedometer error old vs. new — plus wheel offset, track width, load/speed index and DOT age
Index Rent Calculator
Calculate & check a German index rent: new rent under § 557b BGB with official monthly CPI values, earliest payment date and a check of the landlord's letter
Family & Social
Basic Income Support Calculator
Calculate your basic income support (formerly Bürgergeld) eligibility
Divorce Cost Calculator
Calculate and compare divorce costs
Child Support Calculator
Calculate child support using the Düsseldorf Table
Care Allowance Calculator
Calculate care allowance & combined benefits
Wedding Cost Calculator
Plan your wedding budget with regional prices
Parental Allowance (Elterngeld) Calculator
Calculate your German Elterngeld (parental allowance) 2026: basic & Plus, with monthly income overview for parental leave
School Year Cost Calculator
Calculate all school costs: supplies, lunch, transport, after-school care, class trips
University Cost Calculator
Plan your studies: semester costs, living expenses, BAföG, financing gap
Health Insurance Comparison Calculator
Compare statutory vs. private health insurance: costs, long-term projection
Sick Pay Calculator
Calculate sick pay: continued pay, block period, exhaustion of benefits
Breakup or Wedding?
The relationship check: How stable is your relationship really?
Child Cost Calculator
What does raising a child cost from 0-18? Childcare, clothing, education
Pet Cost Calculator
What does a pet cost? Dog, cat, small animal — monthly and lifetime
Early-Start Pension Calculator
Calculate the planned Early-Start Pension: what €10 a month grows into by retirement
Due Date Calculator
Calculate your due date with the Naegele rule — incl. pregnancy week, trimester & maternity leave
Ovulation Calculator
Calculate fertile days, ovulation & next period — not a contraception method
Driver's License Cost Calculator
What does a driving license cost? Calculate all costs: lessons, fees, exams
Widow's Pension Calculator
Calculate German widow's pension: large and small pension, grace quarter and income offsetting
Traffic Fine Calculator
Calculate fine, points & driving ban — speeding, distance, red light & phone under Germany's 2026 fine catalogue
Legal Costs Calculator
Calculate German lawyer & court fees (RVG/GKG) — with cost risk if you lose, settlement and appeal
Vocational Training Allowance Calculator
Calculate Germany's vocational training allowance (BAB): need, training pay and parental income under SGB III
Nursing Home Cost Calculator
Calculate your nursing home co-payment — with care fund supplement (15/30/50/75%), room, board & investment costs
Child Investment Account Calculator
Calculate a child investment account: ETF savings plan to 18, child-vs-parent tax, Early-Start Pension
Building & DIY
3-4-5 Method Calculator
Check right angles using the Pythagorean theorem
Material Needs Calculator
Calculate tiles, paint, flooring & bulk materials
Staircase Calculator
Calculate rise, run & DIN 18065 compliance
Slope Calculator
Calculate slope with DIN standard compliance
Roof Calculator
Calculate roof area, rafter length & snow load
Mixing Ratio Calculator
Concrete, mortar, epoxy & more — exact mixing ratios
HOAI Fee Calculator
Calculate architect fees under Germany's HOAI 2021 — fee zone, work stages 1–9, refurbishment surcharge, expenses & VAT
U-Value Calculator
Calculate U-values to EN ISO 6946, compare with German legal and subsidy limits and estimate the heat load
Dew Point Calculator
Calculate dew point & absolute humidity, check the mould risk on exterior walls (80% criterion) and compare indoor vs. outdoor air for ventilation
Health & Nutrition
Calorie Calculator
Calculate your calorie needs with macro split
BMI Calculator
Calculate and interpret your Body Mass Index
Macronutrient Calculator
Calculate macros for your nutrition goal
Water Intake Calculator
Calculate your personal daily water intake
Sleep Cycle Calculator
Calculate optimal bedtime: sleep cycles, hypnogram, sleep quality
Dental Cost Calculator
Calculate dental costs: fixed subsidy, co-pay, bonus booklet, hardship
Blood Alcohol Calculator
Estimate blood alcohol (BAC) with the Widmark formula — no statement on fitness to drive
Ideal Weight & Body Fat Calculator
Calculate ideal weight and body fat: Broca, Devine, BMI range & US Navy formula
Pace Calculator
Calculate running pace, time & distance: min/km ↔ km/h, split table and finish-time prediction from 5K to marathon
Child BMI Calculator
Calculate BMI percentiles for children & teens (0–18) using the German Kromeyer-Hauschild reference — with SDS, classification and percentile chart
Co-Payment Exemption Calculator
Calculate your health insurance burden limit: 2% or 1% for the chronically ill, 2026 allowances and amount left until exemption
Math & Calculators
Area Calculator
Calculate area and perimeter: rectangle, circle, triangle, trapezoid – or draw irregular shapes yourself
Percentage Calculator
Calculate percentages: base value, percentage, change, markup & discount
Fraction Calculator
Add, subtract, multiply, divide, simplify and convert fractions
Rule of Three Calculator
Proportional, inverse and compound rule of three with step-by-step solution
Age Calculator
Calculate your exact age: years, months, days, days lived & countdown
Calendar Week Calculator
Current week number, convert dates to ISO weeks, all weeks of the year with German public holidays
Roman Numerals Converter
Convert Roman numerals — live in both directions, with breakdown, validation and a 1–100 chart
Volume Calculator
Calculate volume & surface area of cube, cuboid, cylinder, sphere, cone & pyramid in litres — plus circle and Pythagoras calculator with sketch and step-by-step solution
Currency Converter
Convert euros to dollars, Swiss francs, pounds, złoty & 25 more currencies: daily ECB reference rates, cross rates, a 90-day chart and a markup check
Online Calculator
Online calculator with order of operations, percent, brackets, memory, history and scientific functions
Why Calculator Portal?
100% private
Your data stays in your browser. No login, no tracking.
Precise results
Current formulas, tax tables, and exemptions — regularly updated.
Completely free
All calculators are freely available. No hidden costs.
Made for Germany
Specifically built for German tax, social, and housing law.
How it works
Choose a calculator
Pick the right calculator for your question.
Enter your data
Fill in the fields — all inputs stay local in your browser.
Get your result
Your result appears instantly — with charts and explanations.
Disclaimer
All calculations on Rechenportal are for informational purposes only and are not legally binding. Results may differ from actual values, as individual circumstances, legislative changes, or regional specifics cannot be fully accounted for. For binding advice, please consult a tax advisor, lawyer, or the relevant authority.