Convert inches to centimeters
1 in = 2.54 cm. Change the amount below, or read the formula and the reference table further down.
1 inch equals
centimeters
1 in = 2.54 cm
The formula
Inches and centimeters both measure length from the same zero, so a single multiplier does the job.
cm = in × 2.54
Going the other way? Convert centimeters to inches.
Inches to centimeters table
Common values, rounded for reading.
| 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 |
| 15 | 38.1 |
| 20 | 50.8 |
| 25 | 63.5 |
| 30 | 76.2 |
| 40 | 101.6 |
| 50 | 127 |
| 75 | 190.5 |
| 100 | 254 |
| 250 | 635 |
| 500 | 1,270 |
| 1,000 | 2,540 |
Questions people ask
- How many centimeters are in a inch?
- One inch equals 2.54 centimeters.
- How do I convert inches to centimeters by hand?
- Multiply the number of inches by 2.54. For a rough check, 2.5 is close enough for most everyday use.
- What is 1 inch in centimeters?
- 1 inch is 2.54 centimeters.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.