All tools
Calculators
Everyday calculators for percentages, dates and numbers.
Percentage Calculator
Calculate percentages, percentage change and reverse percentages instantly.
Age Calculator
Find your exact age in years, months and days, and the days until your next birthday.
Date Difference Calculator
Count the days, weeks, months and years between two dates, optionally excluding weekends.
Finance & Tax
Loan, interest and VAT calculators, with country-specific tax data.
US Sales Tax Calculator
Add or remove sales tax using the combined state and local rate you enter.
Compound Interest Calculator
See how savings or investments grow with compound interest and regular contributions.
Loan & Monthly Payment Calculator
Work out monthly payments, total interest and the full amortisation schedule for any loan.
UK VAT Calculator
Add or remove UK VAT at the standard, reduced or zero rate, using rates from GOV.UK.
German VAT Calculator (Mehrwertsteuer)
Add or remove German VAT (Umsatzsteuer) at 19% or 7%, using rates from the UStG.
French VAT Calculator (TVA)
Add or remove French TVA at 20%, 10%, 5.5% or 2.1% (metropolitan France).
Converters
Convert units of length, weight, temperature and more.
Text Tools
Count words, characters and more.
Image Tools
Resize and compress images privately, right in your browser.
Generators
Generate secure passwords, QR codes and more.
Developer Tools
Format and validate data such as JSON.