How many centimeter are in one inch?
One inch is 2.54 cm.
Inch to Centimeter
Type a value to convert it from inch to centimeter. One in equals 2.54 cm.
Result
Inch and Centimeter, side by side
One inch is 2.54 cm. In the other direction, one centimeter is 0.3937 in.
The factor is exact rather than rounded: the imperial units have been defined from the metric ones since 1959, so the conversion introduces no error of its own. What you see below is arithmetic, not an approximation.
| Inch | Centimeter |
|---|---|
| 1 | 2.54 |
| 5 | 12.7 |
| 10 | 25.4 |
| 20 | 50.8 |
| 50 | 127 |
| 100 | 254 |
Frequently asked questions
How do I convert centimeter back to inch?
One centimeter is 0.3937 in. The tool above converts in both directions.
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