Length · cm → mm
Centimetres to Millimetres
Enter any value below to convert centimetres to millimetres instantly.
To
1 cm = 10 mm
Conversion formula
How to convert cm to mm
mm = cm × 10
Multiply the centimetres value by 10 to get millimetres. The converter keeps extra precision internally and rounds only the displayed answer.
Converting centimetres to millimetres is useful when comparing dimensions, travel distances, building measurements or product specifications written in different measurement systems.
Worked example
Convert 10 cm10 cm = 100 mm
Calculated with the published formula. No estimated exchange rates or hidden rounding.
Common centimetres to millimetres values
| Centimetres (cm) | Millimetres (mm) |
|---|---|
| 1 cm | 10 mm |
| 5 cm | 50 mm |
| 10 cm | 100 mm |
| 25 cm | 250 mm |
| 50 cm | 500 mm |
| 100 cm | 1,000 mm |
Quick answer
How many millimetres are in one centimetre?
One centimetre equals 10 mm.