Free length calculator
Centimeters to Inches Converter (cm to in)
Enter a value to convert centimeters to inches. Results update as you type and include the calculation steps.
cm
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 centimeters to inches
Multiply the centimeters value by 0.39370079.
in = cm x 0.39370079
Worked example
For 20 cm: 20 x 0.39370079 = 7.8740157 in.
The calculator keeps more precision internally than the number displayed, so repeated conversions remain accurate.
Centimeters to Inches conversion table
| Centimeters (cm) | Inches (in) |
|---|---|
| 0.1 cm | 0.039370079 in |
| 1 cm | 0.39370079 in |
| 2 cm | 0.78740157 in |
| 5 cm | 1.9685039 in |
| 10 cm | 3.9370079 in |
| 20 cm | 7.8740157 in |
| 25 cm | 9.8425197 in |
| 50 cm | 19.685039 in |
| 100 cm | 39.370079 in |
| 250 cm | 98.425197 in |
| 500 cm | 196.85039 in |
| 1000 cm | 393.70079 in |
About the units
Centimeter
A centimeter is one hundredth of a meter, 10 millimeters, and exactly 1/2.54 of an inch.
Inch
An inch is a US customary and imperial length unit. One inch equals exactly 25.4 millimeters and one twelfth of a foot.