1 centimeter (cm) = 10 millimeters (mm). To convert, multiply by 10: mm = cm × 10. For example, 5 cm = 50 mm.
mm = cm × 10
Centimeters to millimeters table
| Centimeters (cm) | Millimeters (mm) |
|---|---|
| 1 | 10 |
| 2 | 20 |
| 3 | 30 |
| 4 | 40 |
| 5 | 50 |
| 10 | 100 |
| 20 | 200 |
| 25 | 250 |
| 50 | 500 |
| 100 | 1,000 |
| 250 | 2,500 |
| 500 | 5,000 |
| 1,000 | 10,000 |
The two units
Centimeter (cm). One hundredth of a meter.
Millimeter (mm). One thousandth of a meter.
Because both units are defined in terms of the same base unit, the factor 10 is exact, not a rounded measurement.
Convert centimeters to other units
- Centimeters to meters — 1 cm = 0.01 m
- Centimeters to kilometers — 1 cm = 0.00001 km
- Centimeters to micrometers — 1 cm = 10,000 µm
- Centimeters to nanometers — 1 cm = 10,000,000 nm
- Centimeters to miles — 1 cm = 0.0000062137 mi
- Centimeters to yards — 1 cm = 0.010936133 yd
- Centimeters to feet — 1 cm = 0.032808399 ft
- Centimeters to inches — 1 cm = 0.3937007874 in
- Centimeters to nautical miles — 1 cm = 0.0000053996 nmi
Convert other units to millimeters
Questions people ask
- How many millimeters are in a centimeter?
- 10, exactly.
- How do you convert centimeters to millimeters?
- mm = cm × 10. It is the same as dividing by 0.1.
- How do you convert millimeters back to centimeters?
- cm = mm ÷ 10. See millimeters to centimeters.
Results use the legal definitions of each unit and are checked against the Pint unit library. Display rounds to 10 significant digits. All unit conversions · More tools
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