Unit Converter

Length, weight, temperature, data, area, volume, speed and time.

Runs in your browser: data never leaves your device. Free, no sign-up. Also known as: convert units, km to miles, kg to lbs, celsius.

How to use Unit Converter

  1. Paste your input, open a file, or press Sample to see an example.
  2. Pick a mode or adjust the options; results update instantly.
  3. Use Copy or Download to take the result with you.

Frequently asked questions

What does the Unit Converter do?
Length, weight, temperature, data, area, volume, speed and time.
Is the Unit Converter free?
Yes. It is completely free, with no sign-up, no watermark and no usage limits.
Is my data safe?
Yes. This tool runs entirely in your web browser. Your text and files are never uploaded to a server, stored or logged.
Does it work on mobile?
Yes. It works in any modern browser on Windows, macOS, Linux, Android and iOS, with nothing to install.
What other generators & calculators tools are there?
Runeforge has 17 generators & calculators tools in Arcane Engine, plus 88 more tools across other categories.

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