Millimeters to Centimeters Converter
Use this free millimeters to centimeters converter to get an exact answer as you type. 1 millimeter equals 0.1 centimeters, so the conversion is simple – the calculator also accepts fractions such as 5 3/8 and shows the result as a fraction of an inch when it helps.
How to convert millimeters to centimeters
- Type the length in millimeters into the Value box. Fractions like 3/8 and mixed numbers like 5 3/8 are accepted.
- Check that “From” shows millimeters and “To” shows centimeters. Use the swap button to reverse the direction.
- Read the exact answer instantly. Choose how many decimals you need, and copy the result with one tap.
The millimeters to centimeters formula
To convert millimeters to centimeters, divide the number of mm by 10. In short: cm = mm ÷ 10. Example: 50 mm = 5 cm.
Millimeters to centimeters conversion table
Look up the most common values below. For any other number, use the calculator above.
| Millimeters (mm) | Centimeters (cm) |
|---|---|
| 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 |
| 12 | 1.2 |
| 14 | 1.4 |
| 15 | 1.5 |
| 16 | 1.6 |
| 18 | 1.8 |
| 20 | 2 |
| 22 | 2.2 |
| 24 | 2.4 |
| 25 | 2.5 |
| 28 | 2.8 |
| 30 | 3 |
| 32 | 3.2 |
| 35 | 3.5 |
| 40 | 4 |
| 45 | 4.5 |
| 50 | 5 |
| 60 | 6 |
| 70 | 7 |
| 75 | 7.5 |
| 80 | 8 |
| 90 | 9 |
| 100 | 10 |
| 125 | 12.5 |
| 150 | 15 |
| 175 | 17.5 |
| 200 | 20 |
| 250 | 25 |
| 300 | 30 |
| 400 | 40 |
| 500 | 50 |
| 750 | 75 |
| 1,000 | 100 |
About these units
The millimeter (mm) is one thousandth of a meter. It is the standard unit for precise measurements in engineering, woodworking, 3D printing and hardware.
The centimeter (cm) is one hundredth of a meter. It is the everyday metric unit for body height, clothing, furniture and small objects.
Frequently asked questions
How many centimeters are in 1 mm?
1 mm = 0.1 cm. This factor is exact by definition.
How do I convert millimeters to centimeters?
Divide the value in mm by 10. For example, 50 mm = 5 cm.
How many centimeters is 100 mm?
100 mm = 10 cm.
Is this millimeters to centimeters converter accurate?
Yes. It uses the exact international definitions (1 inch = 2.54 cm, 1 foot = 30.48 cm). Numbers are rounded only for display, and you can show up to 8 decimals.