Unit Converter
Convert between metric and imperial units — metres/feet/miles, kilograms/pounds/stones, Celsius/Fahrenheit/Kelvin — and see all the equivalents at once. Runs in your browser.
Runs in your browser — your file never leaves your deviceFrequently asked questions
Is Unit Converter free to use?
Yes — Unit Converter is completely free with no limits, no watermarks and no sign-up. It runs in your browser, so there is nothing to pay for.
Are my files uploaded or stored anywhere?
No. This tool does all its work locally in your browser using your own device's power. Your files never leave your device and we never see them.
Do I need to install anything or create an account?
No installation and no account needed. Unit Converter works on any modern browser — Windows, Mac, Linux, Android and iPhone.
How do I use Unit Converter?
Open the tool, add your file (or paste your content), adjust any options, then press “Convert units”. Your result is ready to download in seconds.
Related tools
BMI Calculator
Body-mass index with WHO ranges.
Fraction Calculator
Add, subtract, multiply, divide fractions.
Decimal to Fraction
0.375 → 3/8, simplified.
Quadratic Equation Solver
Roots of ax² + bx + c = 0, real or complex.
Unicode Code Points
Text ↔ U+XXXX code points.
Bengali Calendar Converter
Gregorian → Bongabdo (BS).