Fast answers, clean math
Cm to inches converter
Enter centimeters and get inches instantly. This page also shows the formula so you can sanity-check the result.
Unit converter
Convert centimeters to inches
Formula
Centimeters to inches (cm → in)
The conversion is based on an exact definition: 1 inch equals exactly 2.54 centimeters.
Formula: inches = centimeters ÷ 2.54
If you prefer multiplication, use the reciprocal: inches = centimeters × 0.3937007874.
| Centimeters (cm) | Inches (in) |
|---|---|
| 1 | 0.3937 |
| 5 | 1.9685 |
| 10 | 3.9370 |
| 20 | 7.8740 |
| 50 | 19.6850 |
| 100 | 39.3701 |