Which units are supported?

Common length, weight, temperature, and related categories are included.

Can I link a specific conversion?

Yes. Use pair URLs such as /tool/unit-converter/km-to-mi.

Yes. Convert units online free.

Free unit converter for length, weight, temperature and more. Convert km to miles, kg to lb, °C to °F online.

Converters

Runs entirely in your browser — files stay on your device.

Length · live conversion

From

1000

Convert everyday units quickly — distance, mass, temperature, and more. Open popular pair pages like km to mi for direct links.

Fast, accurate conversions with shareable pair URLs for SEO-friendly lookups.