Inches to Centimeters Converter
Convert inches (in) to centimeters (cm), with the formula, a conversion table and exact factors.
Change the values and press Calculate to work out your own figures.
Convert a length from one unit to another. For inches, feet and yards you also get feet and inches with a tape-measure fraction.
Show the working
- 1 in = 2.54 cm
- 1 × 2.54 = 2.54 cm
How to convert inches to centimeters
1 in = 2.54 cm, so multiply by 2.54 to go from inches to centimeters. Going the other way, 1 cm = 0.393700787402 in.
cm = in × 2.54 in = cm × 0.393700787402
Worked example:
1 in = 2.54 cm 5 × 2.54 = 12.7 cm
Inches to centimeters table
| Inches | Centimeters |
|---|---|
| 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 |
| 6 in | 15.24 cm |
| 7 in | 17.78 cm |
| 8 in | 20.32 cm |
| 9 in | 22.86 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 |
| 40 in | 101.6 cm |
| 50 in | 127 cm |
| 75 in | 190.5 cm |
| 100 in | 254 cm |
| 250 in | 635 cm |
| 500 in | 1270 cm |
| 1000 in | 2540 cm |
About the units
- Inches (in)
- Inches, a US customary unit. Definition: NIST Handbook 44 Appendix C (international yard and pound, 1959).
- Centimeters (cm)
- Centimeters, a metric unit. Definition: BIPM SI Brochure (SI prefixes).