Why these calculators?
Working out VAT, percentages, loan payments or week numbers doesn’t have to be complicated, but small mistakes are easy to make. Removing 20% VAT by subtracting 20% instead of dividing by 1.20 already puts you off by several dollars or euros. That is why every calculator on this site comes with a clear explanation: you see the result, the formula and a few worked examples, so you can check the answer and understand why it is right.
How our calculators work
- Instant results: the result appears as you type. Press Calculate or Enter to validate your input and get a clear message if something is missing.
- Privacy: everything is calculated in your own browser. We don’t store your input or send it to a server.
- Accessible: every field has a label and all calculators can be used with a keyboard alone.
- Sources you can check: tools based on official rates show the source and the date we last checked it, right below the calculator. Exchange rates are the European Central Bank’s daily reference rates.
Tools for the Netherlands
Living or working in the Netherlands? Alongside general calculators for mortgages, loans, compound interest and percentages, we offer English versions of popular Dutch tools: the Dutch take home pay calculator with the 2026 tax brackets, the Dutch road tax calculator with all provincial surcharges, the Dutch company car tax calculator and the Dutch holiday pay calculator.
Also in Dutch
All calculators are also available in Dutch. Use the language button in the top right to switch to the same page in the other language. On our blog you’ll find articles answering common questions, such as what week it is right now or how much Dutch road tax you pay for an electric car. Missing a calculator or spotted a mistake? Let us know via the contact page.