1 millimeter (mm) = 0.1 centimeters (cm). To convert, divide by 10: cm = mm ÷ 10. For example, 5 mm = 0.5 cm.
cm = mm ÷ 10
Millimeters to centimeters table
| Millimeters (mm) | Centimeters (cm) |
|---|---|
| 1 | 0.1 |
| 2 | 0.2 |
| 3 | 0.3 |
| 4 | 0.4 |
| 5 | 0.5 |
| 10 | 1 |
| 20 | 2 |
| 25 | 2.5 |
| 50 | 5 |
| 100 | 10 |
| 250 | 25 |
| 500 | 50 |
| 1,000 | 100 |
The two units
Millimeter (mm). One thousandth of a meter.
Centimeter (cm). One hundredth of a meter.
Because both units are defined in terms of the same base unit, the factor 0.1 is exact, not a rounded measurement.
Convert millimeters to other units
- Millimeters to meters — 1 mm = 0.001 m
- Millimeters to kilometers — 1 mm = 0.000001 km
- Millimeters to micrometers — 1 mm = 1,000 µm
- Millimeters to nanometers — 1 mm = 1,000,000 nm
- Millimeters to miles — 1 mm = 6.213712e-7 mi
- Millimeters to yards — 1 mm = 0.0010936133 yd
- Millimeters to feet — 1 mm = 0.0032808399 ft
- Millimeters to inches — 1 mm = 0.0393700787 in
- Millimeters to nautical miles — 1 mm = 5.399568e-7 nmi
Convert other units to centimeters
Questions people ask
- How many centimeters are in a millimeter?
- 0.1, exactly.
- How do you convert millimeters to centimeters?
- cm = mm ÷ 10. It is the same as dividing by 10.
- How do you convert centimeters back to millimeters?
- mm = cm × 10. See centimeters to millimeters.
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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