Convert Millimeter to Centimeter
Use this free converter to change millimeters (mm) into centimeters (cm). Millimeter and centimeter both measure length. As a quick reference, 1 mm equals 0.1 cm, and 1 cm equals 10 mm.
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Centimeter (cm)
0.1
1 mm = 0.1 cm
Length conversion table
| Millimeter | Centimeter |
|---|---|
| 0.01 | 0.001 |
| 0.1 | 0.01 |
| 0.5 | 0.05 |
| 1 | 0.1 |
| 2 | 0.2 |
| 3 | 0.3 |
| 5 | 0.5 |
| 10 | 1 |
| 20 | 2 |
| 25 | 2.5 |
| 50 | 5 |
| 100 | 10 |
| 1,000 | 100 |
How to convert Millimeter to Centimeter
Multiply the millimeter value by 0.1 to get centimeters.
- Enter the number of millimeters you want to convert.
- The converter instantly shows the equivalent value in centimeters.
- Worked example: 15 mm × 0.1 = 1.5 cm.
- Use the swap button to reverse the conversion (centimeter to millimeter).
About these units
Millimeter (mm)
- Definition
- A millimeter (mm) is one thousandth of a meter, used where small, precise measurements are needed.
- History
- Like other metric subdivisions it was defined in the 1790s using the prefix "milli-" (one thousandth).
- Current use
- Engineers, machinists, and manufacturers specify tolerances in millimeters, and rainfall is commonly reported in mm.
Centimeter (cm)
- Definition
- A centimeter (cm) is one hundredth of a meter, a convenient metric unit for everyday measurements like height and paper sizes.
- History
- It dates from the original metric system and uses the SI prefix "centi-" (one hundredth).
- Current use
- Centimeters are used for body measurements, rainfall, screen and print dimensions, and school maths across the metric world.
Frequently asked questions
How many centimeters are in a millimeter?
There are 0.1 cm in 1 mm. To convert, multiply the number of millimeters by 0.1.
How do I convert millimeters to centimeters?
Multiply the millimeter value by 0.1 to get centimeters. For example, 10 mm = 1 cm.
Is this millimeter-to-centimeter converter free?
Yes. This converter is completely free, runs entirely in your browser, and requires no sign-up. Your inputs never leave your device.
Convert Millimeter to other length units
| Unit | 1 Millimeter equals |
|---|---|
| Meter (m) | 0.001 m |
| Kilometer (km) | 0.000001 km |
| Centimeter (cm) | 0.1 cm |
| Micrometer (µm) | 1000 µm |
| Nanometer (nm) | 1000000 nm |
| Mile (mi) | 6.2137e-7 mi |
| Yard (yd) | 0.0010936133 yd |
| Foot (ft) | 0.0032808399 ft |
| Inch (in) | 0.039370079 in |
| Nautical Mile (nmi) | 5.3996e-7 nmi |
| Light Year (ly) | 1.0570e-19 ly |