CM to Inches Converter
Useful for clothing and body measurements, paper and photo sizes, and anything measured on a metric ruler that you need in inches.
1 cm = 0.3937 in
inches
1 cm = 0.3937 in
How to convert centimeters to inches
Divide the number of centimeters by 2.54.
Formula
in = cm ÷ 2.54
For a quick estimate, multiply by about 0.393701.
Examples
- 10 cm ÷ 2.54 = 3.937 in
- 30 cm ÷ 2.54 = 11.811 in
- 100 cm ÷ 2.54 = 39.3701 in
Centimeters to inches conversion table
| Centimeters (cm) | Inches (in) |
|---|---|
| 1 | 0.3937 |
| 2 | 0.7874 |
| 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 |
| 75 | 29.5276 |
| 100 | 39.3701 |
| 150 | 59.0551 |
| 200 | 78.7402 |
Values rounded to 4 decimal places or 4 significant digits.
About centimeters
The centimeter is one hundredth of a meter, or 10 millimeters. In most of the world it is the everyday unit for body height, clothing measurements and anything you would measure with a school ruler.
About inches
The inch has been defined as exactly 2.54 centimeters since the 1959 international yard and pound agreement. It is used worldwide for screen sizes and wheel diameters, and in the US for most short measurements.
Frequently asked questions
How many inches are in one centimeter?
One centimeter equals 0.3937 inches (rounded).
How do I convert centimeters to inches?
Divide the number of centimeters by 2.54. For example: 30 cm ÷ 2.54 = 11.811 in.
How many centimeters are in one inch?
One inch equals 2.54 centimeters.
Is the cm to in conversion exact?
Yes. The factor follows directly from the official definitions of both units, so the only rounding is in how many decimals are displayed.