How to convert inches to centimeters
- Type the value in inches (in) in the box above.
- The result in centimeters appears instantly, along with the same value in every other unit of length.
- Press ⇄ to convert the other way.
Formula
centimeters = inches × 2.54. So 1 in = 2.54 cm, and 12 in = 30.48 cm.
Inches to centimetres is needed for screen sizes (a 27-inch monitor is 68.6 cm diagonally), waist and inseam measurements on clothing, wheel and tyre sizes, photo print sizes and DIY plans from the US. Multiply by exactly 2.54. Fractions of an inch convert the same way: ½ in = 1.27 cm, ¼ in = 0.635 cm and ⅛ in = 3.175 mm.
in to cm conversion chart
| Inches | Centimeters |
|---|---|
| 0.25 in | 0.635 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 |
| 6 in | 15.24 cm |
| 10 in | 25.4 cm |
| 12 in | 30.48 cm |
| 24 in | 60.96 cm |
| 36 in | 91.44 cm |
FAQ
How many cm is 12 inches?
12 inches (one foot) is exactly 30.48 cm.
How do I convert in to cm?
Use centimeters = inches × 2.54. Or type the value above and the converter does it for you.
How do I convert cm back to in?
Multiply by 0.393701, or press the ⇄ button in the converter.