How to convert inches to centimeters
One inch equals 2.54 centimeters. To convert, multiply the number of inches by 2.54:
Mental-math shortcut: Multiply inches by 2.5 for a quick estimate: 12 in × 2.5 = 30 cm (exact: 30.48 cm).
Example
Convert 12 inches to centimeters: 12 in × 2.54 = 30.48 cm.
Inches to Centimeters conversion chart
| Inches (in) | Centimeters (cm) |
|---|---|
| 0.25 | 0.635 |
| 0.5 | 1.27 |
| 1 | 2.54 |
| 2 | 5.08 |
| 3 | 7.62 |
| 4 | 10.16 |
| 5 | 12.7 |
| 6 | 15.24 |
| 8 | 20.32 |
| 10 | 25.4 |
| 12 | 30.48 |
| 24 | 60.96 |
| 36 | 91.44 |
| 48 | 121.92 |
| 60 | 152.4 |
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.
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.
Converting the other way? Use the Centimeters to Inches converter.
Frequently asked questions
How many centimeters is one inch?
One inch is 2.54 centimeters.
How do I convert inches to centimeters?
Multiply the value in inches by 2.54. For example, 12 in × 2.54 = 30.48 cm.
What is 6 in in centimeters?
6 in is 15.24 centimeters.
How do I convert centimeters to inches?
Multiply centimeters by 0.393701 (or divide by 2.54). You can also use our Centimeters to Inches converter.
How many cm is a 55-inch TV?
TV sizes measure the screen diagonal. A 55-inch TV is 55 × 2.54 = 139.7 cm across the diagonal.
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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