1 millimeter = 0.1 centimeters
All conversions
| Unit | Symbol | Value |
|---|
Quick answer
To convert millimeters to centimeters, divide the number of millimeters by 10. For example, 5 millimeters = 0.5 centimeters.
Full guide
Length Conversion Guide: Feet to Meters, CM to Inches and More
Read the guide
How to Convert MM to CM
The formula is centimeters = millimeters ÷ 10. 1 millimeter = 0.1 centimeters. Type any value in the converter above for an instant answer, or use the chart below for the most common values.
This page is preset for millimeter to centimeter conversions, but you can switch either list to any of the 92 units in the Length Converter, or go the other way with the CM to MM converter.
MM to CM conversion chart
| MM | CM |
|---|---|
| 0.1 mm | 0.01 cm |
| 0.25 mm | 0.025 cm |
| 0.5 mm | 0.05 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 |
| 11 mm | 1.1 cm |
| 12 mm | 1.2 cm |
| 13 mm | 1.3 cm |
| 14 mm | 1.4 cm |
| 15 mm | 1.5 cm |
| 16 mm | 1.6 cm |
| 17 mm | 1.7 cm |
| 18 mm | 1.8 cm |
| 19 mm | 1.9 cm |
| 20 mm | 2 cm |
| 25 mm | 2.5 cm |
| 30 mm | 3 cm |
| 40 mm | 4 cm |
| 50 mm | 5 cm |
| 60 mm | 6 cm |
| 70 mm | 7 cm |
| 75 mm | 7.5 cm |
| 80 mm | 8 cm |
| 90 mm | 9 cm |
| 100 mm | 10 cm |
| 150 mm | 15 cm |
| 200 mm | 20 cm |
| 250 mm | 25 cm |
| 500 mm | 50 cm |
| 1,000 mm | 100 cm |
Common MM to CM conversions
- 1 millimeter = 0.1 centimeters
- 5 mm = 0.5 cm
- 10 mm = 1 cm
- 25 mm = 2.5 cm
- 50 mm = 5 cm
- 100 mm = 10 cm
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How to Use the MM to CM Converter
- Type a value in the From box and choose its unit.
- Pick the unit you want in the To list — the result updates as you type.
- Use the swap button to reverse the conversion, or type in the To box to convert backwards.
- Check the All conversions table to see your value in every unit; click a row to make it the target.
Frequently Asked Questions
How many centimeters are in a millimeter?
There are 0.1 centimeters in 1 millimeter. Going the other way, 1 centimeter = 10 millimeters.
How do I convert MM to CM?
Use the formula centimeters = millimeters ÷ 10. For example, 1 millimeter = 0.1 centimeters. Or type the value in the converter above and the answer appears as you type.
What is the MM to CM formula?
centimeters = millimeters ÷ 10 — the conversion factor is exact, using the international definitions of both units.
What is 5 millimeters in centimeters?
5 millimeters = 0.5 centimeters.
What is 10 millimeters in centimeters?
10 millimeters = 1 centimeters.
What is 25 millimeters in centimeters?
25 millimeters = 2.5 centimeters.
What is 50 millimeters in centimeters?
50 millimeters = 5 centimeters.
What is 100 millimeters in centimeters?
100 millimeters = 10 centimeters.
How do I convert CM back to MM?
Use the swap button in the converter above, or open our CM to MM converter. millimeters = centimeters × 10.
Is this MM to CM converter accurate?
Yes. It uses exact unit definitions and double-precision maths, and you can show up to 15 significant digits. The table below is calculated with the same formula.
Can I convert MM to other length units?
Yes — pick any unit in the From and To lists above, or open the full Length Converter, which handles 92 length units.
Is the MM to CM converter free?
Yes, it is free with no sign-up, and every conversion runs in your browser so nothing is sent to a server.