Unit Converter
About the Unit Converter
Convert between units across eight categories — Length, Weight, Temperature, Volume, Speed, Area, Data Storage and Pressure — with results that update instantly as you type. Everything is computed locally in your browser using exact conversion factors, so it works offline and never sends your numbers anywhere.
This tool works in your browser: the files and text you use are processed on your device and are not uploaded.
How to use it
- Pick a category (Length, Weight, Temperature and so on).
- Enter a value and choose the unit you are converting from.
- Choose the unit to convert to — or use the swap button to reverse the direction.
Frequently asked questions
Which categories and units are supported?
Eight categories: Length, Weight, Temperature, Volume, Speed, Area, Data Storage and Pressure. Each category offers the common metric and imperial units for that measure.
How is temperature handled?
Temperature uses proper offset formulas (not simple ratios), so conversions between Celsius, Fahrenheit and Kelvin are accurate rather than scaled.
Does it work offline?
Yes. All conversion factors are built in and the math runs in your browser, so no internet connection is required.