UsefulTab
Cm to Inches Converter
Convert centimeters to inches instantly, with every other length unit alongside.
Enter a length to convert it
Enter a length and pick its unit. Every other unit is calculated live as you type — right here in your browser, with nothing sent to a server.
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How to convert centimeters to inches
One inch is exactly 2.54 centimeters, so divide centimeters by 2.54 to get inches. For example, 30 cm ÷ 2.54 = 11.811 in. Multiplying by 0.393701 gives the same answer. The converter above does this as you type and also shows millimeters, feet and meters, which helps with screen sizes, paper and clothing.
Centimeters to inches table
| Centimeters (cm) | Inches (in) |
|---|---|
| 1 cm | 0.3937 in |
| 2.54 cm | 1 in |
| 10 cm | 3.937 in |
| 30 cm | 11.811 in |
| 50 cm | 19.685 in |
| 100 cm | 39.3701 in |
Common questions
How many inches is 30 cm?
30 cm is about 11.811 inches, a little under one foot (12 inches = 30.48 cm).
How do I convert cm to inches without a calculator?
Divide by 2.5 for a quick estimate, then adjust down slightly. For example, 50 cm ÷ 2.5 = 20, and the exact value is 19.685 in.
How many cm is 1 inch?
Exactly 2.54 cm. That definition has been international since 1959.