cm to inches
Compare metric dimensions with inch-based rulers, product sizes and craft measurements.
Edit either value. Use a decimal point; commas group thousands. Rounding affects display only.
How to convert centimeters to inches
Compare metric dimensions with inch-based rulers, product sizes and craft measurements.
Formula coefficients shown rounded. Calculations use the stored factors before display rounding.
A worked example
For 10 cm, the result is approximately 3.937007874 in. To go the other way, edit the result above or swap the units.
International feet and miles are used, not historical US survey units.
Where the numbers come from
Factors follow NIST conversion references and documented unit definitions. Read our accuracy and rounding notes.
The table and method describe this page’s original pair. Changing units above does not change this reference section.
| Centimeters (cm) | Inches (in) |
|---|---|
| 1 | 0.3937007874 |
| 2 | 0.7874015748 |
| 5 | 1.968503937 |
| 10 | 3.937007874 |
| 20 | 7.874015748 |
| 25 | 9.842519685 |
| 50 | 19.68503937 |
| 100 | 39.37007874 |
| 500 | 196.8503937 |
| 1000 | 393.7007874 |