How to convert cm to mm
- Type the value in cm in the “Value” field.
- See the result in mm, highlighted at the top.
- You also see the same value in the other units of the category.
- Tap Copy result to take the equivalents with you.
The formula and examples
1 cm equals 10 mm, and 1 mm equals 0.1 cm. To convert, multiply the cm value by 10: 1 cm = 10 mm; 5.5 cm = 55 mm; 30 cm = 300 mm.
Multiply by 10: every centimeter has 10 millimeters.
cm × 10 = mm
mm × 0.1 = cm
Centimeters (cm) to Millimeters (mm) conversion table
| Centimeters (cm) | Millimeters (mm) |
|---|---|
| 0.5 | 5 |
| 1 | 10 |
| 2 | 20 |
| 3 | 30 |
| 4 | 40 |
| 5 | 50 |
| 6 | 60 |
| 7 | 70 |
| 8 | 80 |
| 9 | 90 |
| 10 | 100 |
| 11 | 110 |
| 12 | 120 |
| 14 | 140 |
| 15 | 150 |
| 16 | 160 |
| 18 | 180 |
| 20 | 200 |
| 21.1 | 211 |
| 25 | 250 |
| 30 | 300 |
| 35 | 350 |
| 40 | 400 |
| 42.195 | 421.95 |
| 45 | 450 |
| 50 | 500 |
| 55 | 550 |
| 60 | 600 |
| 65 | 650 |
| 70 | 700 |
| 75 | 750 |
| 80 | 800 |
| 90 | 900 |
| 100 | 1,000 |
| 110 | 1,100 |
| 120 | 1,200 |
| 125 | 1,250 |
| 130 | 1,300 |
| 140 | 1,400 |
| 150 | 1,500 |
| 160 | 1,600 |
| 170 | 1,700 |
| 175 | 1,750 |
| 180 | 1,800 |
| 190 | 1,900 |
| 200 | 2,000 |
| 250 | 2,500 |
| 300 | 3,000 |
| 400 | 4,000 |
| 500 | 5,000 |
| 750 | 7,500 |
| 1,000 | 10,000 |
Millimeters (mm) to Centimeters (cm) conversion table
| Millimeters (mm) | Centimeters (cm) |
|---|---|
| 0.5 | 0.05 |
| 1 | 0.1 |
| 2 | 0.2 |
| 3 | 0.3 |
| 4 | 0.4 |
| 5 | 0.5 |
| 6 | 0.6 |
| 7 | 0.7 |
| 8 | 0.8 |
| 9 | 0.9 |
| 10 | 1 |
| 11 | 1.1 |
| 12 | 1.2 |
| 14 | 1.4 |
| 15 | 1.5 |
| 16 | 1.6 |
| 18 | 1.8 |
| 20 | 2 |
| 21.1 | 2.11 |
| 25 | 2.5 |
| 30 | 3 |
| 35 | 3.5 |
| 40 | 4 |
| 42.195 | 4.2195 |
| 45 | 4.5 |
| 50 | 5 |
| 55 | 5.5 |
| 60 | 6 |
| 65 | 6.5 |
| 70 | 7 |
| 75 | 7.5 |
| 80 | 8 |
| 90 | 9 |
| 100 | 10 |
| 110 | 11 |
| 120 | 12 |
| 125 | 12.5 |
| 130 | 13 |
| 140 | 14 |
| 150 | 15 |
| 160 | 16 |
| 170 | 17 |
| 175 | 17.5 |
| 180 | 18 |
| 190 | 19 |
| 200 | 20 |
| 250 | 25 |
| 300 | 30 |
| 400 | 40 |
| 500 | 50 |
| 750 | 75 |
| 1,000 | 100 |
Good to know
- The factor is 10 mm for every cm.
- The result is rounded to 8 significant digits.
- Below you will find a conversion chart in both directions.
Frequently asked questions
How much is 1 cm in mm?
10 mm.
How much is 5.5 cm in mm?
55 mm.
How many cm are in 1 mm?
0.1 cm.
How do I convert cm to mm in my head?
Multiply by 10: every centimeter has 10 millimeters.