Convert inches to centimeters
Enter a value in inches to convert it to centimeters.
inches to centimeters reference
| inches | centimeters |
|---|---|
| 1 in | 2.54 cm |
| 2 in | 5.08 cm |
| 5 in | 12.7 cm |
| 10 in | 25.4 cm |
| 25 in | 63.5 cm |
| 50 in | 127 cm |
| 100 in | 254 cm |
The conversion factor
One inch is 2.54 centimeters. So to convert, multiply your figure in inches by 2.54. To go the other way, multiply centimeters by 0.39370079, or use the centimeters to inches converter.
Doing it in your head
For a quick estimate, round the factor: roughly "times 3". Use the exact converter above when the number matters.
Where this conversion comes up
Height, distance, DIY measurements, maps, and any spec sheet that mixes metric and imperial.
See the common unit conversions cheat sheet for the factors worth memorising.
Related tools
Frequently asked questions
How many centimeters are in a inch?
1 inch = 2.54 centimeters.
What is the formula to convert inches to centimeters?
Multiply the number of inches by 2.54. To go back the other way, multiply centimeters by 0.39370079.
What is 10 inches in centimeters?
10 inches = 25.4 centimeters. The reference table below lists more common values.
Is this converter accurate?
It uses the internationally defined conversion factors and computes at full floating-point precision, then rounds only the displayed result. For everyday purposes it is exact; for legal, engineering or scientific work, confirm the required number of significant figures.
Does it work offline?
Yes. The conversion runs in your browser with no server call, so it keeps working with no connection, and nothing you enter is uploaded.
Last reviewed: September 2026. Figures and formulas are checked against their published sources; see the site's data notes.