1 centimeter to millimeters
1 cm = 10 mm. Change the amount below, or read the formula and the reference table further down.
1 centimeter equals
millimeters
1 cm = 10 mm
The formula
Centimeters and millimeters both measure length from the same zero, so a single multiplier does the job.
mm = cm × 10
Going the other way? Convert millimeters to centimeters.
Centimeters to millimeters table
Values either side of 1 cm.
| Centimeters (cm) | Millimeters (mm) |
|---|---|
| -4 | -40 |
| -3.5 | -35 |
| -3 | -30 |
| -2.5 | -25 |
| -2 | -20 |
| -1.5 | -15 |
| -1 | -10 |
| -0.5 | -5 |
| 0 | 0 |
| 0.5 | 5 |
| 1 | 10 |
| 1.5 | 15 |
| 2 | 20 |
| 2.5 | 25 |
| 3 | 30 |
| 3.5 | 35 |
| 4 | 40 |
| 4.5 | 45 |
| 5 | 50 |
| 5.5 | 55 |
| 6 | 60 |
Questions people ask
- How many millimeters are in a centimeter?
- One centimeter equals 10 millimeters.
- How do I convert centimeters to millimeters by hand?
- Multiply the number of centimeters by 10. For a rough check, 10 is close enough for most everyday use.
- What is 1 centimeter in millimeters?
- 1 centimeter is 10 millimeters.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.