inches = centimeters ÷ 2.54
centimeters = inches × 2.54
| Centimeters | Inches |
|---|---|
| 1 cm | 0.393701 in |
| 2.54 cm | 1.000000 in |
| 5 cm | 1.968504 in |
| 10 cm | 3.937008 in |
| 15 cm | 5.905512 in |
| 20 cm | 7.874016 in |
| 25 cm | 9.842520 in |
| 30 cm | 11.811024 in |
| 50 cm | 19.685040 in |
| 100 cm | 39.370080 in |
Centimeters and inches are both units of length measurement from different systems. Centimeters are part of the metric system, used worldwide and based on powers of 10. Inches are part of the imperial system, primarily used in the United States, United Kingdom, and a few other countries.
The relationship between centimeters and inches is precisely defined: 1 inch equals exactly 2.54 centimeters. This exact conversion factor was established by international agreement in 1959 and is used in all official conversions.