Convert Millimeters to centimeters
1 millimeter = 0.1 centimeters · cm = mm ÷ 10
When you need this conversion
This conversion goes from millimeters, the metric unit used for hardware, engineering drawings, and anything needing sub-centimeter precision, to centimeters, the everyday metric unit for body measurements, clothing, and product dimensions. Both measure the same physical quantity, so the conversion is exact — the difference is which unit your source, tool, or region happens to use.
Millimeters to centimeters conversion table
| Millimeters (mm) | Centimeters (cm) |
|---|---|
| 1 mm | 0.1 cm |
| 2 mm | 0.2 cm |
| 3 mm | 0.3 cm |
| 5 mm | 0.5 cm |
| 10 mm | 1 cm |
| 15 mm | 1.5 cm |
| 20 mm | 2 cm |
| 25 mm | 2.5 cm |
| 50 mm | 5 cm |
| 75 mm | 7.5 cm |
| 100 mm | 10 cm |
| 250 mm | 25 cm |
| 500 mm | 50 cm |
| 1,000 mm | 100 cm |
The formula
cm = mm ÷ 10Because both units measure length, the conversion is a single multiplication by a fixed factor. That factor never changes, so the result is exact.
Convert the other way
Centimeters to millimeters →Related length conversions
- Millimeters to micrometers
- Inches to centimeters
- Feet to centimeters
- Centimeters to inches
- Centimeters to feet
- Meters to kilometers
- Kilometers to meters
- Feet to yards
- Yards to feet
- Micrometers to millimeters
- Millimeters to meters
- Millimeters to kilometers
Frequently asked questions
- How many centimeters are in a millimeter?
- There are 0.1 centimeters in 1 millimeter. The formula is cm = mm ÷ 10.
- How do you convert millimeters to centimeters?
- Use the formula cm = mm ÷ 10. For example, 10 millimeters equals 1 centimeters.
- Is the millimeters to centimeters conversion exact?
- Yes. Millimeters and centimeters are both units of length, related by an exact defined factor. Displayed results are rounded for readability.
- What is mm short for?
- mm is the standard symbol for millimeter (also written as millimetres). cm is the symbol for centimeter.