Free Unit Converter
Convert units instantly for daily calculations.
No uploads. No servers. No account required.
100% Private - Input Never Leaves Your Device
All calculations are performed in your browser. We do not upload or store conversion input.
You can enter decimal or scientific notation values such as 1e3, optionally include units like 12 km, and use locale decimal formats like 1,5 when a comma-decimal locale is selected.
Result
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Enter a value and select units to convert.
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How to Use
- Choose a conversion category (length, area, volume, weight, temperature).
- Enter a value and select source/target units.
- Convert instantly and copy or swap units as needed.
Example: Convert shipping weights from pounds to kilograms. See full use case.
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