Gross-Net Calculator
Calculate German 2026 net salary from gross, or find gross for a target net, using the same payroll tax and social insurance engine.
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Rechnerpilot helps with specific calculation questions: enter values, check the result, and follow formulas, assumptions and technical notes.
108 free calculators with calculation steps and sources – available in 8 languages, no registration.
Fuel Cost CalculatorExample
Input
Distance 500 kmConsumption 7 l/100 kmFuel price 1.8 €/l
Trip cost€63.00
Calculation path
500 km / 100 × 7 l × 1.8 €/lExplanationDistance, average consumption and price per litre determine fuel costs. Other vehicle costs are excluded.
Popular calculators
A handpicked selection to get started – spanning everyday life, finance, and health.
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Percentage Calculator
Calculate shares, discounts, surcharges and changes with clear inputs and understandable results.
Compound Interest Calculator
Calculate the compound interest effect on your wealth. Visualize exponential growth, compare with simple interest, and understand the power of compound interest.
Loan Calculator
Calculate the monthly loan payment, maximum loan amount, or duration of your loan. With amortization schedule, interest cost overview, and full calculation steps.
BMI Calculator
Calculate BMI from height and weight, follow the formula and understand WHO adult categories and their limitations.
Electricity Cost Calculator
Calculate electricity costs for appliances, households, standby consumption or annual usage. With electricity price, kWh, watts, base fee, calculation steps and examples.
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Knowledge connects calculations with their assumptions: comparisons and scenarios for decisions that need more than a single number.
Easy-access or fixed-term deposits: access versus a fixed rate
A two-year scenario explains reinvestment risk, liquidity needs and the limits of comparing rates alone.
Read articleExtra repayment or investing: understanding the break-even return
Compare interest savings, net returns and liquidity using a transparent break-even point, without equating certain and risky income.
Read articleBuy or rent: the assumptions that can reverse the result
Compare final wealth rather than payment against rent: assess property value, remaining debt, costs and alternative investing together.
Read article
Examples to try out
Open an example with prefilled values and adjust it to your own numbers.
Calculate loan payment
€200,000 loan, 3.5% interest, 25-year term – how high would the monthly payment be?
Saving with compound interest
€5,000 starting capital plus €200 per month, 4% interest over 30 years – how does the wealth grow?
Electricity cost of a device
100 watts, 8 hours a day, 0,30 €/kWh – what does running it cost per year?
Playground
Move the sliders and see the result update instantly – no submit needed.
Fuel Cost Calculator
Trip cost€63.00
Open in the full calculator →: Fuel Cost CalculatorPercentage Calculator
Percentage value30
Open in the full calculator →: Percentage CalculatorInterest Calculator
Final capital€1,150.00
Open in the full calculator →: Interest CalculatorCategories
All topic areas of the platform with direct access to the matching calculators.
Mathematics
Rechnerpilot's math calculators solve everyday and school problems and show every step of the working. From a quick percentage to the statistical summary of a whole data set, each result is explained so you can follow exactly how it was reached.
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Finance
The finance calculators help with tax questions, loan planning and commercial arithmetic. Every result is shown with its formula and worked solution, so the numbers stay transparent and easy to check.
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Household
The household calculators support you in planning energy costs and your personal budget. Work out the electricity a single appliance draws, or map your income against your spending with the budget planner.
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Time & Date
The time calculators handle everything around dates, age and duration. Count the days between two dates, work out your exact age, or add up hours and minutes for your working-time records.
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Work & Career
The work calculators help with pay questions, time tracking and leave planning. From gross-to-net salary and hourly rates to your holiday entitlement, every result comes with a worked solution you can retrace. The salary figures follow German tax and social-security rules.
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Mobility
The mobility calculators work out trip costs, fuel consumption and the share each passenger pays. They are ideal for commuters, car pools and planning longer drives before you set off.
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Health
The health calculators help you make sense of body metrics such as BMI or daily calorie needs. Every result is placed in context and explained, so a number never stands on its own.
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Sports & Training
Rechnerpilot's sport and training calculators help you plan endurance, strength and multisport training. From heart-rate zones and VO₂max through race predictions and FTP to swim CSS and triathlon target times, every result comes with a worked solution.
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Developer Tools
The developer tools generate UUIDs, cryptographic hashes and Base64 encodings right in the browser. Every operation runs locally through the Web Crypto API — no data ever leaves your device.
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Generators
The generators create random numbers, lottery draws, secure passwords and placeholder text from parameters you choose. Everything is generated locally in your browser, so nothing is sent anywhere.
8 calculatorsView all calculatorsQuality and transparency
The calculators document their calculation, basis and limitations as specifically as possible.
Transparent calculation paths
No result without explanation. Every calculation shows the formula used, the values entered, and every intermediate step. The result is interpreted and placed in its professional context.
Expert sources
Formulas and calculations are based on laws, standards, and recognized expert sources. For financial calculators, these include the German Civil Code (BGB), the Price Indication Regulation (PAngV), or Bundesbank publications. Every calculator documents its sources transparently.
Share permalink
Every calculation generates a unique link. This allows results to be shared with colleagues, clients, or advisors — without re-entering data.
Create PDF
Results can be downloaded as a PDF document — with calculation path, input values, and date. Practical for receipts and documentation.
Error reports welcome
Every calculator lets you create a reproducible error report. This way, incorrect results or outdated sources can be reported and corrected.
Local calculation
All calculations run directly in the browser. Inputs are not sent to servers and not stored. No account required.
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