Free length calculator
Inches to Centimeters Converter (in to cm)
Enter a value to convert inches to centimeters. Results update as you type and include the calculation steps.
in
Result
Enter a value above
In decimal inches
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As a common fraction
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Feet and inches
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How to convert inches to centimeters
Multiply the inches value by 2.54.
cm = in x 2.54
Worked example
For 20 in: 20 x 2.54 = 50.8 cm.
The calculator keeps more precision internally than the number displayed, so repeated conversions remain accurate.
Inches to Centimeters conversion table
| Inches (in) | Centimeters (cm) |
|---|---|
| 0.1 in | 0.254 cm |
| 1 in | 2.54 cm |
| 2 in | 5.08 cm |
| 5 in | 12.7 cm |
| 10 in | 25.4 cm |
| 20 in | 50.8 cm |
| 25 in | 63.5 cm |
| 50 in | 127 cm |
| 100 in | 254 cm |
| 250 in | 635 cm |
| 500 in | 1270 cm |
| 1000 in | 2540 cm |
About the units
Inch
An inch is a US customary and imperial length unit. One inch equals exactly 25.4 millimeters and one twelfth of a foot.
Centimeter
A centimeter is one hundredth of a meter, 10 millimeters, and exactly 1/2.54 of an inch.