Inch to Centimeter
1 in =2.54cm
About Inch to Centimeter
Inches to centimeters is one of the most common conversions for anyone working between US/UK and metric measurements. Whether you are buying a TV abroad, ordering clothes online, or checking a piece of furniture against your room dimensions, this conversion is essential.
To convert inches to centimeters, multiply the value in inches by 2.54. Centimeters = Inches × 2.54.
For example, to convert 12 inches to cm: 12 × 2.54 = 30.48 cm. A standard 1-foot ruler is therefore 30.48 cm long.
Inch to Centimeter table
| Inch (in) | Centimeter (cm) |
|---|---|
| 1 | 2.54 |
| 2 | 5.08 |
| 3 | 7.62 |
| 5 | 12.7 |
| 10 | 25.4 |
| 12 | 30.48 |
| 15 | 38.1 |
| 20 | 50.8 |
| 24 | 60.96 |
| 36 | 91.44 |
Common use cases
- 01Buying TVs and monitors when only inch sizes are listed
- 02Furniture shopping when dimensions are given in inches
- 03Sewing and tailoring across pattern systems
- 04Construction projects mixing US and metric specs
A bit of history
Since 1959, 1 inch has been internationally defined as exactly 2.54 cm. Before that, slightly different inches were used in different countries, leading to occasional engineering confusion.
Frequently asked questions
How many cm in an inch?+
Exactly 2.54 cm.
How many cm in 5 inches?+
5 × 2.54 = 12.7 cm.
How many cm in 10 inches?+
10 × 2.54 = 25.4 cm.
Is 5 inches the same as 5 cm?+
No — 5 inches is 12.7 cm, which is more than twice 5 cm.
Need the reverse?
Convert Centimeter to Inch →