Centimeters to Millimeters: 1 cm equals 10 mm. To convert centimeters to millimeters, multiply by 10 (mm = cm × 10). For example, 10 cm = 100 mm.
How to Convert Centimeters to Millimeters
To convert from centimeters to millimeters, multiply the value by 10. The conversion is linear, meaning doubling the input doubles the output.
Conversion Formula
- Centimeters to Millimeters:
mm = cm × 10 - Millimeters to Centimeters:
cm = mm ÷ 10
Centimeters to Millimeters Conversion Chart
| Centimeters (cm) | Millimeters (mm) |
|---|---|
| 0.1 | 1 |
| 0.25 | 2.5 |
| 0.5 | 5 |
| 1 | 10 |
| 2 | 20 |
| 3 | 30 |
| 5 | 50 |
| 10 | 100 |
| 20 | 200 |
| 25 | 250 |
| 50 | 500 |
| 100 | 1000 |
| 250 | 2500 |
| 1000 | 10000 |
Understanding the Units
What is a Centimeter?
A centimeter is one hundredth of a meter (1 cm = 0.01 m).
From Latin centum ("hundred") + meter.
Common contexts: everyday measurement, medicine, sewing.
What is a Millimeter?
A millimeter is one thousandth of a meter (1 mm = 0.001 m).
Common contexts: engineering, manufacturing, medicine.
Real-World Reference Points
| Item | Centimeters (cm) | Millimeters (mm) |
|---|---|---|
| Width of a fingernail | 1 | 10 |
| Standard pencil length | 19 | 190 |
| A4 paper width | 21 | 210 |