Centimeters to Millimeters Converter (cm to mm)
Convert centimeters to millimeters instantly with our free cm to mm calculator. Enter a value to see the result.
How to convert centimeters to millimeters
To change cm into mm, use this formula:
Example: to convert 25 cm to mm, calculate 250 mm. To go the other way, use cm = mm ÷ 10.
Popular centimeters to millimeters conversions
- 1 cm to mm = 10 mm
- 2 cm to mm = 20 mm
- 3 cm to mm = 30 mm
- 5 cm to mm = 50 mm
- 10 cm to mm = 100 mm
- 15 cm to mm = 150 mm
- 20 cm to mm = 200 mm
- 25 cm to mm = 250 mm
- 30 cm to mm = 300 mm
- 40 cm to mm = 400 mm
- 50 cm to mm = 500 mm
- 60 cm to mm = 600 mm
- 70 cm to mm = 700 mm
- 80 cm to mm = 800 mm
- 90 cm to mm = 900 mm
- 100 cm to mm = 1,000 mm
Centimeters to Millimeters conversion chart
| Centimeters (cm) | Millimeters (mm) |
|---|---|
| 1 cm | 10 mm |
| 2 cm | 20 mm |
| 5 cm | 50 mm |
| 10 cm | 100 mm |
| 20 cm | 200 mm |
| 25 cm | 250 mm |
| 50 cm | 500 mm |
| 75 cm | 750 mm |
| 100 cm | 1,000 mm |
| 250 cm | 2,500 mm |
| 500 cm | 5,000 mm |
| 1,000 cm | 10,000 mm |
When do you need cm to mm conversion?
This conversion is commonly used for travel, construction, DIY projects, sewing, sports and school homework. Different countries and industries use different units, so converting centimeters to millimeters helps you compare measurements accurately.
Frequently asked questions
How many millimeters are in 1 centimeters?
1 cm equals 10 mm.
How do I convert centimeters to millimeters?
Use the formula mm = cm × 10. For example, 25 cm = 250 mm.
What is 10 cm in mm?
10 cm = 100 mm.
What is 100 cm in mm?
100 cm = 1,000 mm.
How do I convert mm back to cm?
Use cm = mm ÷ 10. You can also use our Millimeters to Centimeters converter.
Is this cm to mm converter accurate?
Yes. It uses standard international conversion factors and shows up to 6 significant digits.