How Many CM Are in an Inch?
The short answer, a converter for any number, and a chart of common amounts.
Quick answer: There are 2.54 centimeters in 1 inch. So 1 centimeter is 0.3937 inches.
How to use it
The answer
There are 2.54 centimeters in 1 inch. So 1 centimeter is 0.3937 inches.
To convert inches to centimeters, multiply by 2.54. To go from centimeters to inches, multiply by 0.3937.
Inches to centimeters chart
| Inches | Centimeters |
|---|---|
| 1 inch | 2.54 centimeters |
| 2 inches | 5.08 centimeters |
| 3 inches | 7.62 centimeters |
| 4 inches | 10.16 centimeters |
| 5 inches | 12.7 centimeters |
| 10 inches | 25.4 centimeters |
| 20 inches | 50.8 centimeters |
| 50 inches | 127 centimeters |
| 100 inches | 254 centimeters |
Centimeters to inches chart
| Centimeters | Inches |
|---|---|
| 1 centimeter | 0.3937 inches |
| 2 centimeters | 0.7874 inches |
| 5 centimeters | 1.9685 inches |
| 10 centimeters | 3.937 inches |
| 25 centimeters | 9.8425 inches |
| 50 centimeters | 19.685 inches |
| 100 centimeters | 39.3701 inches |
What people use it for
- Cooking, baking and shopping
- Homework and science
- Travel and road signs
- Reading labels and instructions
- Quick checks without a calculator
Questions
How many centimeters are in an inch?
There are 2.54 centimeters in 1 inch. So 1 centimeter is 0.3937 inches.
How many inches are in a centimeter?
There are 0.3937 inches in 1 centimeter.
Is the number exact?
Yes, it uses the exact definitions of the units and is rounded only for display.
Is it free?
Yes. No sign-up, no install and no limit.
Is anything saved or sent?
No. Everything runs in your browser. Only your own best score, where a page shows one, is kept on your device.
Last updated 2026-10-24. Free to use, no sign-up. Made by ficklestudio26.