Inches to centimeters
Type a value in either field to convert between inches and centimeters.
1 in = 2.54 cm
How to convert inches to centimeters
Multiply the value in inches by 2.54 to get centimeters.
Example: 10 in = 25.4 cm.
The inch is defined as exactly 25.4 millimeters (international agreement of 1959).
Frequently asked questions
How many centimeters are in a inch?
1 in equals 2.54 cm.
How to convert inches to centimeters
Multiply the value in inches by 2.54 to get centimeters.
Are these conversions exact?
Yes. They use the international definitions of each unit; results are rounded only for display.
| inches (in) | centimeters (cm) |
|---|---|
| 1 | 2.54 |
| 2 | 5.08 |
| 3 | 7.62 |
| 4 | 10.16 |
| 5 | 12.7 |
| 6 | 15.24 |
| 7 | 17.78 |
| 8 | 20.32 |
| 9 | 22.86 |
| 10 | 25.4 |
| 12 | 30.48 |
| 15 | 38.1 |
| 20 | 50.8 |
| 25 | 63.5 |
| 30 | 76.2 |
| 40 | 101.6 |
| 50 | 127 |
| 60 | 152.4 |
| 70 | 177.8 |
| 75 | 190.5 |
| 80 | 203.2 |
| 90 | 228.6 |
| 100 | 254 |
| 150 | 381 |
| 200 | 508 |
| 250 | 635 |
| 500 | 1,270 |
| 1,000 | 2,540 |
| in | cm |
|---|---|
| 1/64" | 0.0396875 |
| 1/32" | 0.079375 |
| 1/16" | 0.15875 |
| 3/32" | 0.238125 |
| 1/8" | 0.3175 |
| 5/32" | 0.396875 |
| 3/16" | 0.47625 |
| 1/4" | 0.635 |
| 5/16" | 0.79375 |
| 3/8" | 0.9525 |
| 7/16" | 1.11125 |
| 1/2" | 1.27 |
| 9/16" | 1.42875 |
| 5/8" | 1.5875 |
| 11/16" | 1.74625 |
| 3/4" | 1.905 |
| 13/16" | 2.06375 |
| 7/8" | 2.2225 |
| 15/16" | 2.38125 |