Unit converter
Centimeters to Inches Converter
Convert centimeters to inches using the exact factor of 2.54 cm per inch. Whether you're measuring paper, a screen, or fabric, this page returns an accurate result and a reference chart for common values.
Formula
in = cm ÷ 2.54
Example: 30 cm ÷ 2.54 ≈ 11.811 in.
Centimeters to Inches conversion chart
| Centimeters (cm) | Inches (in) |
|---|---|
| 1 cm | 0.3937 in |
| 2 cm | 0.7874 in |
| 3 cm | 1.1811 in |
| 4 cm | 1.5748 in |
| 5 cm | 1.9685 in |
| 10 cm | 3.937 in |
| 15 cm | 5.9055 in |
| 20 cm | 7.874 in |
| 25 cm | 9.8425 in |
| 30 cm | 11.811 in |
| 40 cm | 15.748 in |
| 50 cm | 19.685 in |
| 75 cm | 29.5276 in |
| 100 cm | 39.3701 in |
| 150 cm | 59.0551 in |
| 200 cm | 78.7402 in |
Frequently asked questions
- How many inches are in a centimeter?
- One centimeter equals about 0.3937 inches. Equivalently, one inch is exactly 2.54 cm.
- How do I convert cm to inches by hand?
- Divide the centimeter value by 2.54. For a quick estimate, divide by 2.5 — the answer is within a couple of percent.
- Why is 2.54 the exact factor?
- In 1959 the international yard-and-pound agreement fixed the inch at exactly 25.4 millimeters, which makes 1 in = 2.54 cm by definition.
Reverse
Inches → CentimetersRelated conversions