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Free tools that
give real answers
Calculators, converters and planners with the method behind every result, ready to use on any device.
- Tools6 free tools
- Categories3 tool categories
- No sign-upFree for everyone
- Clear methodsEvery result explained
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Loan Repayment Calculator
Estimate the monthly payment, total interest and total cost of a fixed-rate loan.
Percentage Calculator
Find a percentage of a number, what percentage one number is of another, or the change between two values.
How the tools work
- The method is shown
Every tool explains its formula, units, examples and limits.
- Results to take away
Copy a result or download it as a text file.
- Free to use
No account and no sign-up are needed.