This centimeters to inches converter gives you the cm to in result instantly, in your browser, with the exact ratio so you can verify it. 1 centimeter is about 0.393701 inches, and going the other way, 1 inch is 2.54 centimeters. Centimeters are part of the metric system used in most countries; inches are an imperial unit still common in the United States and the United Kingdom.
To convert by hand, multiply the number of centimeters by 0.393701. For example, 10 centimeters is 3.93701 inches and 100 centimeters is 39.3701 inches. The table below lists the most requested values, and the converter above accepts decimals for anything in between.
cm to in formula
in = cm × 0.393701
1 centimeter is about 0.393701 inches. Multiply the value in centimeters by that factor to get inches.
Centimeters to Inches conversion table
| centimeters | inches | Rounded |
|---|---|---|
| 1 cm | 0.393701 in | 0.394 |
| 2 cm | 0.787402 in | 0.787 |
| 3 cm | 1.1811 in | 1.18 |
| 4 cm | 1.5748 in | 1.57 |
| 5 cm | 1.9685 in | 1.97 |
| 6 cm | 2.3622 in | 2.36 |
| 7 cm | 2.75591 in | 2.76 |
| 8 cm | 3.14961 in | 3.15 |
| 9 cm | 3.54331 in | 3.54 |
| 10 cm | 3.93701 in | 3.94 |
| 12 cm | 4.72441 in | 4.72 |
| 15 cm | 5.90551 in | 5.91 |
| 20 cm | 7.87402 in | 7.87 |
| 25 cm | 9.84252 in | 9.84 |
| 30 cm | 11.811 in | 11.8 |
| 40 cm | 15.748 in | 15.7 |
| 50 cm | 19.685 in | 19.7 |
| 60 cm | 23.622 in | 23.6 |
| 70 cm | 27.5591 in | 27.6 |
| 75 cm | 29.5276 in | 29.5 |
| 80 cm | 31.4961 in | 31.5 |
| 90 cm | 35.4331 in | 35.4 |
| 100 cm | 39.3701 in | 39.4 |
| 150 cm | 59.0551 in | 59.1 |
| 200 cm | 78.7402 in | 78.7 |
| 250 cm | 98.4252 in | 98.4 |
| 300 cm | 118.11 in | 118 |
| 500 cm | 196.85 in | 197 |
| 750 cm | 295.276 in | 295 |
| 1,000 cm | 393.701 in | 394 |
Frequently asked questions
How many inches are in 5 centimeters?
5 cm = 1.9685 in. Multiply 5 by 0.393701, the number of inches in one centimeter. The converter on this page does the same arithmetic for any value, including decimals.
What is the formula to convert centimeters to inches?
in = cm × 0.393701. The factor comes from the definitions of the units: 1 centimeter is about 0.393701 inches. Worked example: 12 cm = 4.72441 in.
Is 30 cm the same as 11.811 in?
Yes. 30 cm = 11.811 in. Rounded to four decimals it is 11.81 in.
How do I convert inches back to centimeters?
Divide by 0.393701, or multiply by 2.54: 1 inch is 2.54 centimeters. The inches to centimeters page linked above lists common values the other way.
Is the cm to in conversion exact?
1 centimeter is about 0.393701 inches. The ratio is a defined constant but produces a long decimal, so this page rounds to six significant digits, which is more precision than any everyday measurement needs.