Cm to Mm ConverterRight in Your Browser
Convert centimeters (cm) to millimeters (mm). The centimeter (cm) is the go-to metric unit for body height, clothing and furniture measurements outside the US. The millimeter (mm) is one thousandth of a meter, the precision unit for engineering, hardware and rainfall. Everything is calculated locally in your browser — no server, and it works offline.
10 mm
in millimeters (millimeter)
To convert centimeters to millimeters, multiply the centimeter value by 10.
Switch to Mm to CmCm to Mm Chart
| Centimeters (cm) | Millimeters (mm) |
|---|---|
| 1 | 10 |
| 2 | 20 |
| 3 | 30 |
| 4 | 40 |
| 5 | 50 |
| 10 | 100 |
| 20 | 200 |
| 50 | 500 |
| 100 | 1000 |
Frequently Asked Questions
How many millimeters are in a centimeter?
One centimeter equals 10 millimeters (1 cm = 10 mm). So to go from centimeters to millimeters, multiply the centimeter value by 10.
What is the formula to convert centimeters to millimeters?
To convert centimeters to millimeters, multiply the centimeter value by 10. For example, 10 cm is 100 mm.
What is 180 centimeters in millimeters?
180 centimeters — a tall adult's height — is 1800 millimeters. The converter above works for any value, entirely in your browser.
Is the centimeter to millimeter conversion exact?
The factor used here is the defined value: 1 cm = 10 mm. Results are rounded to six significant digits for readability, so for high-precision work use the full factor.