Centimeters to Millimeters
Convert centimeters to millimeters instantly. The relationship is fixed: 1 cm = 10 mm (and 1 mm = 0.1 cm). To go from centimeters to millimeters, multiply by 10.
For example, 10 cm is 100 mm. Length conversions like this come up constantly — measuring height, screen and TV sizes, paper, furniture, and anything bought from a country that uses a different measurement system.
Millimeters (mm)
10
1 cm = 10 mm
ResultFull conversion table
| cm | mm |
|---|---|
| 1 | 10 |
| 2 | 20 |
| 3 | 30 |
| 5 | 50 |
| 10 | 100 |
| 15 | 150 |
| 20 | 200 |
| 25 | 250 |
| 30 | 300 |
| 50 | 500 |
| 100 | 1,000 |
How to convert centimeters to millimeters
The formula is: mm = cm × 10. Take your amount in centimeters, multiply by 10, and you have the result in millimeters. To reverse it, divide by 10 (or multiply by 0.1).
Use the table below for the most common values at a glance, or the calculator for any exact amount.
Frequently asked questions
How many millimeters are in 1 cm?
1 cm equals 10 mm.
How many millimeters is 10 cm?
10 cm is 100 mm.
What's the formula for centimeters to millimeters?
Multiply centimeters by 10: mm = cm × 10.
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