Convert inches to cm

1 inch equals 2.54 centimeters. To convert inches to centimeters, multiply the number of inches by 2.54: for example, 10 in is 25.4 cm. Ethical Tube's free inches to cm converter does the math as you type, and the chart below lists common values.

1 in = 2.54 cm

1 in
2.54 cm
1 cm
0.393701 in
Formula
cm = in × 2.54
Measures
Length
Price
Free
Works offline
Yes

Conversion chart

inches to cm chart

Inches (in)Centimeters (cm)
1 in2.54 cm
2 in5.08 cm
3 in7.62 cm
4 in10.16 cm
5 in12.7 cm
6 in15.24 cm
8 in20.32 cm
10 in25.4 cm
12 in30.48 cm
15 in38.1 cm
20 in50.8 cm
25 in63.5 cm
50 in127 cm
100 in254 cm

How it works

How to convert inches to cm

  1. Know the formula

    cm = in × 2.54. In words: multiply the number of inches by 2.54.

  2. Work an example

    10 in → 25.4 cm. Round to two or three decimal places for everyday use.

  3. Or type it in

    Enter any value in the converter above and the answer appears instantly, in both directions.

Good to know

About length units

  • Since 1959, one inch is defined as exactly 2.54 centimeters, so conversions between metric and US lengths are exact.
  • A foot is 12 inches, a yard is 3 feet, and a mile is 5,280 feet.

FAQ

Questions, answered

How many centimeters are in an inch?

There are 2.54 centimeters in 1 inch. To convert inches to centimeters, multiply the number of inches by 2.54.

What is 10 inches in cm?

10 inches is 25.4 centimeters.

How do you convert cm back to inches?

Multiply the number of centimeters by 0.393701. 1 centimeter is 0.393701 inches.

Is this inches to cm converter free?

Yes. It's free and works in any browser, even offline once the page has loaded. The answer updates as you type, and nothing you enter is sent anywhere.

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