Convert millimeters to centimeters
Enter a value in millimeters to convert it to centimeters.
millimeters to centimeters reference
| millimeters | centimeters |
|---|---|
| 1 mm | 0.1 cm |
| 2 mm | 0.2 cm |
| 5 mm | 0.5 cm |
| 10 mm | 1 cm |
| 25 mm | 2.5 cm |
| 50 mm | 5 cm |
| 100 mm | 10 cm |
The conversion factor
One millimeter is 0.1 centimeters. So to convert, multiply your figure in millimeters by 0.1. To go the other way, multiply centimeters by 10, or use the centimeters to millimeters converter.
Doing it in your head
For a quick estimate, round the factor: roughly "divide by 10". Use the exact converter above when the number matters.
Where this conversion comes up
Height, distance, DIY measurements, maps, and any spec sheet that mixes metric and imperial.
See the common unit conversions cheat sheet for the factors worth memorising.
Related tools
Frequently asked questions
How many centimeters are in a millimeter?
1 millimeter = 0.1 centimeters.
What is the formula to convert millimeters to centimeters?
Multiply the number of millimeters by 0.1. To go back the other way, multiply centimeters by 10.
What is 10 millimeters in centimeters?
10 millimeters = 1 centimeters. The reference table below lists more common values.
Is this converter accurate?
It uses the internationally defined conversion factors and computes at full floating-point precision, then rounds only the displayed result. For everyday purposes it is exact; for legal, engineering or scientific work, confirm the required number of significant figures.
Does it work offline?
Yes. The conversion runs in your browser with no server call, so it keeps working with no connection, and nothing you enter is uploaded.
Last reviewed: September 2026. Figures and formulas are checked against their published sources; see the site's data notes.