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Millimeter to Centimeter
Convert millimeter (mm) to centimeter (cm) — with the exact factor, a quick-reference table and a free converter that works offline.
1 mm = 0.1 cm
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Conversion table
| Millimeter (mm) | Centimeter (cm) |
|---|---|
| 1 mm | 0.1 cm |
| 2 mm | 0.2 cm |
| 5 mm | 0.5 cm |
| 10 mm | 1 cm |
| 20 mm | 2 cm |
| 50 mm | 5 cm |
| 100 mm | 10 cm |
| 500 mm | 50 cm |
How the conversion works
Both units measure length. One millimeter equals exactly 0.1 cm, so multiply by that factor to convert.
FAQ
How many centimeters in a millimeter?
1 mm = 0.1 cm.
How do I convert millimeter to centimeter?
Multiply the millimeter value by 0.1. For example, 10 mm × 0.1 = 1 cm.
Where does the factor come from?
The conversion factor is defined in BIPM SI Brochure; both units are length units converted through meter.
Related conversions
Conversion factors: BIPM SI Brochure. Computed by the same engine that powers the app.
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