Inches to centimeters
Type a value in in to get it in cm instantly.
That's 1.27× as long as a door, while a giraffe is 2.2× longer. Walking, you would cover that in 1.814 seconds.
Convert the other way: cm to in
What it means
How long is that?
Reference lengths are typical values. The inch, foot, yard and mile are defined exactly in meters (1 inch = 2.54 cm).
The math
How to convert in to cm
To convert inches to centimeters, multiply by 2.54.
Example: 100 in × 2.54 = 254 cm.
In the other direction, 1 cm = 0.393701 in.
Every unit
Your length in every unit
Tables
in to cm conversion table
| in | cm |
|---|---|
| 1 in | 2.54 cm |
| 2 in | 5.08 cm |
| 3 in | 7.62 cm |
| 5 in | 12.7 cm |
| 10 in | 25.4 cm |
| 15 in | 38.1 cm |
| 20 in | 50.8 cm |
| 25 in | 63.5 cm |
| 30 in | 76.2 cm |
| 50 in | 127 cm |
| 75 in | 190.5 cm |
| 100 in | 254 cm |
| 150 in | 381 cm |
| 200 in | 508 cm |
| 500 in | 1,270 cm |
| 1,000 in | 2,540 cm |
cm to in conversion table
| cm | in |
|---|---|
| 1 cm | 0.393701 in |
| 2 cm | 0.787402 in |
| 3 cm | 1.1811 in |
| 5 cm | 1.9685 in |
| 10 cm | 3.93701 in |
| 15 cm | 5.90551 in |
| 20 cm | 7.87402 in |
| 25 cm | 9.84252 in |
| 30 cm | 11.811 in |
| 50 cm | 19.685 in |
| 75 cm | 29.5276 in |
| 100 cm | 39.3701 in |
| 150 cm | 59.0551 in |
| 200 cm | 78.7402 in |
| 500 cm | 196.85 in |
| 1,000 cm | 393.701 in |
Quick answers
Quick answers
- How many cm is 1 in?
- 1 in is 2.54 cm.
- How many cm is 10 in?
- 10 in is 25.4 cm.
- How many cm is 100 in?
- 100 in is 254 cm.
The units
About these units
Inches (in)
The inch is exactly 2.54 cm by international agreement since 1959. Screens, pipes, wheels and paper sizes in the US are all measured in inches.
Centimeters (cm)
A centimeter is a hundredth of a meter, about the width of a fingernail. Most of the world gives body height and clothing sizes in centimeters.
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