How many inches are in one centimeter?
One centimeter is 0.3937 in.
Centimeters to Inches
Type a value to convert it from centimeters to inches. One cm equals 0.3937 in.
Result
Centimeters and inches, side by side
One centimeter is 0.3937 in. In the other direction, one inch is 2.54 cm.
The factor is exact rather than rounded: imperial and US units have been defined from the metric ones since 1959, so the conversion introduces no error of its own. What you see below is arithmetic, not an approximation.
The centimeter is one hundredth of a meter, the everyday metric unit for body height, clothing and furniture. Outside the United States a person’s height is usually given in centimeters, and an A4 sheet measures 21 by 29.7 cm.
The inch has been exactly 2.54 centimeters since the international yard and pound agreement of 1959. It survives worldwide in screen sizes, which measure the diagonal, in wheel rims and in pipe fittings, and in the United States for everyday lengths.
| Centimeter | Inch |
|---|---|
| 1 | 0.393701 |
| 5 | 1.9685 |
| 10 | 3.93701 |
| 20 | 7.87402 |
| 50 | 19.685 |
| 100 | 39.3701 |
Frequently asked questions
How do I convert inches back to centimeters?
One inch is 2.54 cm. The tool above converts in both directions.
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