Inches to CM Converter
Convert inches to centimeters using whole numbers, decimals, or fractions. Enter a value such as 2, 2.5, 1/4, or 3/4. 1 inch equals exactly 2.54 centimeters.
Enter your inch measurement
Enter one value: 10, 0.5, 1/2 or 2 3/8. Use a slash for fractions.
Automatic shows up to 9 decimal places. Tiny answers keep extra digits instead of rounding to zero.
Centimeters (cm)
1 in Ă 2.54 = 2.54 cm
How to convert inches to centimeters
Multiply the number of inches by 2.54: centimeters = inches x 2.54. For example, 10 in x 2.54 = 25.4 cm.
The same formula works for fractional inches:
- 1/2 in = 1.27 cm
- 3/4 in = 1.905 cm
You can also enter mixed fractions. For example, 2 3/8 in = 6.0325 cm. A mixed fraction is different from a decimal. 2 3/8 inches means 2.375 inches, while 2.3 inches = 5.842 cm. Enter the measurement exactly as it is written to get the correct result.
Use the result for the measurement you have
A 32-inch inseam equals 81.28 cm
If trousers are listed with a 32-inch inseam, the same length is 81.28 cm. This can help when comparing size charts that use centimeters.
Check whether the chart lists the garment inseam or a body measurement, as they may not mean the same thing. The conversion gives you the equivalent length only; it does not determine the clothing size or how the garment will fit.
A 24-inch screen size describes a screen's diagonal
A 24-inch screen = 60.96 cm diagonally. It does not mean the screen is 60.96 cm wide.
If you are checking whether a monitor or TV will fit on a desk, shelf, or wall, compare its actual width, height, and depth. Include the stand or base when it affects the available space. The advertised screen size may also be rounded.
Keep the fraction until you finish measuring
A 5/8-inch seam allowance equals 1.5875 cm. Rounding it to 1.6 cm changes the measurement slightly. That difference may be small once, but repeated rounding can add up across a detailed pattern or project.
Enter fractions such as 5/8 directly and keep the original value until the final step. For mixed measurements, enter 2 3/8 rather than 2.3, because they are not the same length.
If you are working with a drill bit, screw, or technical drawing marked in millimeters, Convert fractional inches to millimeters so you can compare the measurement in the same unit as the specification.
Inches to centimeters conversion table
Use the table below to quickly convert common inch measurements and fractions to centimeters. These values are exact because 1 inch equals exactly 2.54 cm. Save the chart for quick reference, or open the text table when you need to copy a value.
Open the copyable text table
| Inches (in) | Centimeters (cm) |
|---|---|
| 1/4 | 0.635 |
| 3/8 | 0.9525 |
| 1/2 | 1.27 |
| 5/8 | 1.5875 |
| 1 | 2.54 |
| 5 | 12.7 |
| 8 | 20.32 |
| 10 | 25.4 |
| 12 | 30.48 |
| 24 | 60.96 |
| 32 | 81.28 |
| 67 | 170.18 |