Unit Converter
Convert length, mass, temperature, area, volume, speed and data units.
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How to use the Unit Converter
- Open the Unit Converter.
- Enter your input in the fields provided - results update as you type where practical.
- Use Copy or Download to take the result with you, or Reset to start again.
How it works
All conversions go through a base unit per category with exact defined factors (1 inch = 25.4 mm). Temperature uses the Celsius offset formulas.
Privacy note: this tool runs locally in your browser. Your input is not uploaded, stored in analytics, or placed in the page URL.
Frequently asked questions
Is the Unit Converter free?
Yes. It is completely free, needs no account, and runs in your browser.
Is my data uploaded when I use the Unit Converter?
No. Processing happens locally on your device. We do not upload your inputs, files or generated passwords.
How does the Unit Converter work?
All conversions go through a base unit per category with exact defined factors (1 inch = 25.4 mm). Temperature uses the Celsius offset formulas.