How to convert centimeters to inches
One centimeter equals 0.393701 inches. To convert, multiply the number of centimeters by 0.393701 (or divide by 2.54):
Mental-math shortcut: Multiply by 4 and divide by 10 for a quick estimate: 30 cm × 4 ÷ 10 = 12 in (exact: 11.81 in).
Example
Convert 30 centimeters to inches: 30 cm × 0.393701 = 11.811 in.
Centimeters to Inches conversion chart
| Centimeters (cm) | Inches (in) |
|---|---|
| 1 | 0.393701 |
| 2 | 0.787402 |
| 3 | 1.1811 |
| 4 | 1.5748 |
| 5 | 1.9685 |
| 10 | 3.937 |
| 15 | 5.9055 |
| 20 | 7.874 |
| 25 | 9.8425 |
| 30 | 11.811 |
| 40 | 15.748 |
| 50 | 19.685 |
| 60 | 23.622 |
| 75 | 29.5276 |
| 100 | 39.3701 |
What is a centimeter?
A centimeter (cm) is one hundredth of a meter, roughly the width of a fingernail. It is the everyday unit for height, body measurements and clothing sizes in most of the world. One centimeter is about 0.3937 inches, and exactly 2.54 centimeters make one inch.
What is an inch?
An inch (in or ″) is a unit of length in the US customary and imperial systems. Since 1959 it has been defined as exactly 2.54 centimeters. There are 12 inches in a foot, and inches are used for screen sizes, height, rainfall and construction in the United States.
Converting the other way? Use the Inches to Centimeters converter.
Frequently asked questions
How many inches is one centimeter?
One centimeter is 0.393701 inches.
How do I convert centimeters to inches?
Multiply the value in centimeters by 0.393701. For example, 30 cm × 0.393701 = 11.811 in.
What is 2.5 cm in inches?
2.5 cm is 0.984252 inches.
How do I convert inches to centimeters?
Multiply inches by 2.54 (or divide by 0.393701). You can also use our Inches to Centimeters converter.
Is 1 cm bigger than 1 inch?
No. An inch is about 2.54 times longer than a centimeter, so 1 cm is only about 0.39 inches.
Conversions use the internationally agreed definitions of each unit (for example, 1 inch = 2.54 cm exactly) and are rounded for display. Volume converters use US customary units unless stated otherwise.
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