How to convert centimeters to millimeters
Multiply the number of centimeters by 10. That is all there is to it, because the factor between centimeters and millimeters never changes.
Formula
mm = cm × 10
Example: 25 centimeters × 10 = 250 millimeters.
CM to MM chart
| Centimeters (cm) | Millimeters (mm) |
|---|---|
| 1 cm | 10 mm |
| 2 cm | 20 mm |
| 3 cm | 30 mm |
| 4 cm | 40 mm |
| 5 cm | 50 mm |
| 10 cm | 100 mm |
| 15 cm | 150 mm |
| 20 cm | 200 mm |
| 25 cm | 250 mm |
| 30 cm | 300 mm |
| 40 cm | 400 mm |
| 50 cm | 500 mm |
| 60 cm | 600 mm |
| 70 cm | 700 mm |
| 75 cm | 750 mm |
| 100 cm | 1,000 mm |
| 150 cm | 1,500 mm |
| 160 cm | 1,600 mm |
| 165 cm | 1,650 mm |
| 170 cm | 1,700 mm |
| 175 cm | 1,750 mm |
| 180 cm | 1,800 mm |
| 185 cm | 1,850 mm |
| 190 cm | 1,900 mm |
| 200 cm | 2,000 mm |
Values are rounded to at most four decimals. The converter above shows more digits.
About the units
One centimeter is 0.01 meters.
One millimeter is 0.001 meters.
Need the other direction? Use the MM to CM converter. For every length unit at once, open the Length Converter.
Frequently asked questions
How many millimeters are in a centimeter?
There are 10 millimeters in one centimeter.
How do I convert centimeters to millimeters?
Multiply the number of centimeters by 10. For example: 25 centimeters × 10 = 250 millimeters.
What is 100 centimeters in millimeters?
100 centimeters equals 1,000 millimeters.