Inches to Centimeters: 1 in equals 2.54 cm. To convert inches to centimeters, multiply by 2.54 (cm = in × 2.54). For example, 10 in = 25.4 cm.
How to Convert Inches to Centimeters
To convert from inches to centimeters, multiply the value by 2.54. The conversion is linear, meaning doubling the input doubles the output.
Conversion Formula
- Inches to Centimeters:
cm = in × 2.54 - Centimeters to Inches:
in = cm ÷ 2.54
Inches to Centimeters Conversion Chart
| Inches (in) | Centimeters (cm) |
|---|---|
| 0.1 | 0.254 |
| 0.25 | 0.635 |
| 0.5 | 1.27 |
| 1 | 2.54 |
| 2 | 5.08 |
| 3 | 7.62 |
| 5 | 12.7 |
| 10 | 25.4 |
| 20 | 50.8 |
| 25 | 63.5 |
| 50 | 127 |
| 100 | 254 |
| 250 | 635 |
| 1000 | 2540 |
Understanding the Units
What is an Inche?
The inch is a US customary and imperial unit equal to exactly 25.4 millimeters by the 1959 international yard and pound agreement.
From Old English ynce, derived from Latin uncia ("twelfth"), originally a twelfth of a Roman foot.
Common contexts: construction, screen sizes, apparel.
Real-World Reference Points
| Item | Inches (in) | Centimeters (cm) |
|---|---|---|
| Quarter coin diameter | 0.955 | 2.4257 |
| Smartphone screen | 6.1 | 15.494 |
| Standard ruler | 12 | 30.48 |