Unit Converter — Length, Weight, Temperature & More
Convert length, weight, temperature, volume, area, speed, data, and time with NIST-exact constants. Live results and formula display — no upload, no signup.
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0.1cm
Formula (NIST factors)
1 mm × 0.001 ÷ 0.01 = 0.1 cm
100% client-side — NIST-defined constants (e.g. 1 lb = 0.45359237 kg, 1 in = 2.54 cm).
About this tool
8 categoriesNIST constantsFormula shownLive convertPrivate
How to use
- Pick a category tab.
- Select from/to units.
- Enter a value — result updates instantly.
Examples
1 kg to lb
1 kilogram
2.20462262185 pounds