Inches to CM Converter
Convert inches to centimetres instantly, with a chart for common sizes like screens, waist and paper. 1 inch = 2.54 cm exactly. Free.
12 in = 30.48 cm
1 in = 2.54 cm
| Inches | Centimetres |
|---|---|
| 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 |
| 8 in | 20.32 cm |
| 10 in | 25.4 cm |
| 12 in | 30.48 cm |
| 15 in | 38.1 cm |
| 18 in | 45.72 cm |
| 24 in | 60.96 cm |
| 27 in | 68.58 cm |
| 32 in | 81.28 cm |
| 36 in | 91.44 cm |
| 40 in | 101.6 cm |
| 50 in | 127 cm |
| 55 in | 139.7 cm |
| 65 in | 165.1 cm |
How to convert inches to cm
One inch is defined as exactly 2.54 centimetres, so multiply inches by 2.54. 12 inches (one foot) is 30.48 cm, and a 55 inch TV, measured diagonally, is 139.7 cm. To go the other way, divide centimetres by 2.54. The chart covers common lengths, from small measurements to waist sizes and screen diagonals.
How to use it
- 1
Type the inches
Decimals like 5.5 work.
- 2
Read the centimetres
The result updates as you type.
- 3
Convert back
Type centimetres on the right to get inches.
Frequently asked questions
How many cm is 1 inch?
Exactly 2.54 cm.
How do I convert inches to cm?
Multiply by 2.54. 10 inches × 2.54 = 25.4 cm.
What is a 32 inch waist in cm?
81.3 cm.
Is anything sent to a server?
No. Everything is calculated in your browser, and nothing you type is stored or sent anywhere.