12 conversion categories
Length, mass, volume, area, time, energy, data, pressure, temperature, speed, acceleration, and power.
Coming soon
Unit Converter
Fast everyday conversions, compound feet and inches, custom units, and your favorite pairings—without an account.
Feet and inches, made usable
Enter feet and inches in separate roomy fields without a long unit label squeezing your number.
Quick pairings
Keep common pairings on the main screen, reorder them with simple controls, and undo accidental deletion.
Flexible formats
Automatic, US, European, and ungrouped number formats with bidirectional conversion.
11 languages
English, Chinese, Japanese, Korean, German, French, Spanish, Portuguese, Hindi, and Arabic with RTL support.
Local-first
Favorites, custom units, theme, formatting, and language preferences stay on your device.
Support and feedback
Found a confusing unit, translation issue, or accessibility problem? Include the unit pair, expected result, device model, and app version when possible.