Unit Converter
Convert between length, weight, temperature, and volume units instantly — no sign-up, works fully in your browser.
0.1
1 Millimeters (mm) = 0.1 Centimeters (cm)
How to use the unit converter
- 1. Choose a category: length, weight, temperature, or volume.
- 2. Select the unit you're converting from and enter a value.
- 3. Select the unit you're converting to — the result updates instantly.
- 4. Use the swap button to quickly reverse the conversion direction.
FAQ
Which unit categories are supported?
Length (mm, cm, m, km, in, ft, yd, mi), weight (mg, g, kg, oz, lb, st), temperature (°C, °F, K), and volume (mL, L, US gallons, quarts, pints, cups, fluid ounces).
How accurate are the conversions?
Conversions use standard internationally recognized conversion factors and are shown with up to 6 decimal places of precision.
Why is temperature converted differently from the other categories?
Length, weight, and volume are simple multiplicative conversions, but temperature scales have different zero points, so Celsius, Fahrenheit, and Kelvin use their own conversion formulas.
Is any of my data sent to a server?
No. All conversions run locally in your browser using JavaScript — nothing is transmitted anywhere.