Convert Inches to Centimeters
20 in = 50.8 cm
cm = in × 2.54Convert inches to centimeters instantly — type in either box and it works both ways.
How to convert inches to centimeters
To convert inches to centimeters, multiply the number of inches by 2.54.
cm = in × 2.54
Example: convert 20 in to cm
- 20 × 2.54 = 50.8
- 20 in = 50.8 cm
1 in = 2.54 cm and 1 cm = 0.393701 in.
Inches to Centimeters conversion chart
| Inches (in) | Centimeters (cm) |
|---|---|
| 1 in | 2.54 cm |
| 2 in | 5.08 cm |
| 5 in | 12.7 cm |
| 10 in | 25.4 cm |
| 12 in | 30.48 cm |
| 20 in | 50.8 cm |
| 25 in | 63.5 cm |
| 50 in | 127 cm |
| 100 in | 254 cm |
| 500 in | 1,270 cm |
| 1,000 in | 2,540 cm |
Frequently asked questions
How do you convert inches to centimeters?
To convert inches to centimeters, multiply the number of inches by 2.54. The formula is cm = in × 2.54.
How many centimeters are in one inch?
1 in = 2.54 cm.
How do I convert centimeters back to inches?
Use the reverse formula: in = cm ÷ 2.54. For example 1 cm = 0.393701 in.
Is this converter free and accurate?
Yes. It is free, uses exact internationally defined conversion factors, and runs in your browser — nothing you type is sent anywhere.
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