Millimeters to centimeters
1 millimeter = 0.1 centimeters
For any other value: cm = mm × 0.1
Calculator
0.5 cm
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You can leave the unit in: 100 mm is fine.
Millimeters to centimeters chart
The values people look up most.
| millimeters | centimeters |
|---|---|
| 5 mm | 0.5 cm |
| 2 mm | 0.2 cm |
| 1 mm | 0.1 cm |
| 10 mm | 1 cm |
| 11 mm | 1.1 cm |
| 30 mm | 3 cm |
| 14 mm | 1.4 cm |
| 100 mm | 10 cm |
| 16 mm | 1.6 cm |
| 15 mm | 1.5 cm |
| 20 mm | 2 cm |
| 9 mm | 0.9 cm |
| 50 mm | 5 cm |
| 8 mm | 0.8 cm |
| 3 mm | 0.3 cm |
| 25 mm | 2.5 cm |
| 18 mm | 1.8 cm |
| 45 mm | 4.5 cm |
| 13 mm | 1.3 cm |
| 150 mm | 15 cm |
| 120 mm | 12 cm |
| 24 mm | 2.4 cm |
| 40 mm | 4 cm |
| 17 mm | 1.7 cm |
| 12 mm | 1.2 cm |
| 6 mm | 0.6 cm |
| 28 mm | 2.8 cm |
| 23 mm | 2.3 cm |
| 22 mm | 2.2 cm |
| 19 mm | 1.9 cm |
Formula
cm = mm × 0.1
Ten millimeters make a centimeter — just move the decimal point one place.
Where this number comes from
This factor is exact, not rounded. SI prefixes: milli is 10⁻³ and centi is 10⁻².
Source: The International System of Units (SI Brochure), BIPM (Bureau International des Poids et Mesures).
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