How to convert inches to centimeters
To convert inches to centimeters, multiply by 2.54. Length conversions are used everywhere from construction drawings and travel distances to sewing patterns and science homework.
Inch to Centimeter conversion table
| Inch (in) | Centimeter (cm) |
|---|---|
| 0.1 in | 0.254 cm |
| 0.5 in | 1.27 cm |
| 1 in | 2.54 cm |
| 2 in | 5.08 cm |
| 3 in | 7.62 cm |
| 4 in | 10.16 cm |
| 5 in | 12.7 cm |
| 10 in | 25.4 cm |
| 20 in | 50.8 cm |
| 25 in | 63.5 cm |
| 50 in | 127 cm |
| 100 in | 254 cm |
| 500 in | 1,270 cm |
| 1,000 in | 2,540 cm |
About the units
Inch (in)
An inch is defined as exactly 2.54 centimeters. It is used in the US and UK for screen sizes, lumber and personal height.
Centimeter (cm)
A centimeter is one hundredth of a meter, widely used for body height, clothing sizes and everyday measurements outside the US.
How to use this converter
- Type the number of inches (in) in the input box.
- The result in centimeters appears instantly — no button needed.
- See the same value in every other length unit just below.
- Use “Swap units” to convert centimeters back to inches.
Tips for better results
- Double-check which system a unit belongs to (for example US vs UK gallons).
- Use the swap button to convert in the opposite direction instantly.
- Bookmark the conversions you use most — each pair has its own page.
Frequently asked questions
How many centimeters are in one inch?
One inch equals 2.54 centimeters. 2.54 is the exact factor used by this converter.
How do I convert inches to centimeters?
Multiply the value in inches by 2.54. To go the other way, multiply centimeters by 0.393700787402.
What is 10 in in cm?
10 in = 25.4 cm. Also, 5 in = 12.7 cm and 100 in = 254 cm.
What is the difference between a inch and a centimeter?
An inch is defined as exactly 2.54 centimeters. It is used in the US and UK for screen sizes, lumber and personal height. A centimeter is one hundredth of a meter, widely used for body height, clothing sizes and everyday measurements outside the US.
Is this tool free and private?
Yes — the Inch to Centimeter is completely free with no sign-up, and it runs entirely in your browser, so the values you enter are never uploaded to our servers.
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