Centimeter to Millimeter
1 cm =10mm
About Centimeter to Millimeter
Centimeters to millimeters is one of the simplest metric conversions: multiply by 10. It is handy whenever you need finer resolution than centimeters provide — technical drawings, precision parts, and craft work are usually specified in millimeters.
To convert centimeters to millimeters, multiply the value in centimeters by 10. Millimeters = Centimeters × 10.
For example, 7 cm × 10 = 70 mm. A 7-centimeter line is 70 millimeters long.
Centimeter to Millimeter table
| Centimeter (cm) | Millimeter (mm) |
|---|---|
| 1 | 10 |
| 2 | 20 |
| 5 | 50 |
| 10 | 100 |
| 15 | 150 |
| 20 | 200 |
| 25 | 250 |
| 50 | 500 |
| 100 | 1,000 |
| 1,000 | 10,000 |
Common use cases
- 01Expressing centimeter measurements at millimeter precision
- 02Engineering and manufacturing tolerances
- 03Sewing patterns and craft templates
- 04Converting dimensions on product spec sheets
A bit of history
The centimeter and millimeter are both decimal subdivisions of the meter, the base unit of length in the metric system adopted internationally over the 19th and 20th centuries.
Frequently asked questions
How many mm are in a cm?+
1 centimeter equals exactly 10 millimeters.
How many mm is 5 cm?+
5 centimeters equals 50 millimeters.
How many mm is 15 cm?+
15 centimeters equals 150 millimeters.
Is 1 cm bigger than 1 mm?+
Yes — 1 centimeter is ten times larger than 1 millimeter.
Need the reverse?
Convert Millimeter to Centimeter →