How to convert millimeters to centimeters
To convert millimeters to centimeters, use the formula cm = mm × 0.1. In other words, multiply the number of millimeters by 0.1 to get the equivalent in centimeters. For example, 5 mm equals 0.5 cm.
MM to CM Converter
Convert millimeters to centimeters instantly. 5 mm = 0.5 cm.
1 mm = 0.1 cm
| MM (mm) | CM (cm) |
|---|---|
| 1 mm | 0.1 cm |
| 2 mm | 0.2 cm |
| 3 mm | 0.3 cm |
| 4 mm | 0.4 cm |
| 5 mm | 0.5 cm |
| 6 mm | 0.6 cm |
| 7 mm | 0.7 cm |
| 8 mm | 0.8 cm |
| 9 mm | 0.9 cm |
| 10 mm | 1 cm |
| 15 mm | 1.5 cm |
| 20 mm | 2 cm |
| 25 mm | 2.5 cm |
| 30 mm | 3 cm |
| 40 mm | 4 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 |
Millimeter and Centimeter
The millimeter (mm) and the centimeter (cm) are both units of length. This page gives you an instant, exact conversion between them, a reference table for the most common values, and the underlying formula so you can check the maths yourself. All calculations run in your browser — nothing you type is sent anywhere.
Need to go the other way? Use the CM to MM converter. For all units at once, try the full Length Converter.
Frequently Asked Questions
How do I convert millimeters to centimeters?
Use the formula cm = mm × 0.1. For example, 5 mm equals 0.5 cm. Just enter your value in the converter above to get an instant result.
What is 1 millimeter in centimeters?
1 mm = 0.1 cm. You can multiply any number of millimeters by this figure to convert it, or use the calculator above for exact results.
How do I convert centimeters back to millimeters?
Use the reverse conversion: 1 cm = 10 mm. Our CM to MM converter does this for you.