Centimeters to Millimeters
Convert cm to mm (cm to mm) directly in your browser. Type a value and get the result instantly — no rounding surprises, no data leaves your device.
How to convert cm to mm
One centimeter equals 10 millimeters. To convert, multiply the number of cm by 10:
mm = cm × 10 Example: 1 cm = 10 mm
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Centimeters to Millimeters conversion table
| Centimeters | Millimeters |
|---|---|
| 1 cm | 10 mm |
| 2 cm | 20 mm |
| 3 cm | 30 mm |
| 4 cm | 40 mm |
| 5 cm | 50 mm |
| 10 cm | 100 mm |
| 20 cm | 200 mm |
| 25 cm | 250 mm |
| 50 cm | 500 mm |
| 100 cm | 1000 mm |
FAQ
How many mm are in a centimeter?
One centimeter is exactly 10 millimeters.
What is the formula to convert cm to mm?
Multiply the value in cm by 10 to get the result in mm.
Is this converter free and private?
Yes. It is free, needs no signup, and runs entirely in your browser.