Inches to Centimeters Converter
1 inch = 2.54 centimeters
Type a value in either box: the conversion between inches (in) and centimeters (cm) updates instantly.
Centimeters to Inches Converter
Good to know
Screen sizes are measured diagonally in inches: a 55-inch TV has a diagonal of about 139.7 cm. One inch has been exactly 2.54 cm since an international agreement in 1959.
How to convert inches to centimeters
To convert inches to centimeters, multiply the number of inches by 2.54. To go the other way, multiply centimeters by 0.3937008.
cm = in × 2.54
Worked examples
- 1 in = 2.54 cm
- 12 in = 30.48 cm
- 24 in = 60.96 cm
- 55 in = 139.7 cm
Inches to Centimeters conversion table
| Inches (in) | Centimeters (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 |
| 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 | 1,270 cm |
| 1,000 in | 2,540 cm |
About the units
Inches (in)
The inch (in) is defined as exactly 2.54 centimeters. It is used in the US and UK for height, screen sizes, tools and construction.
Centimeters (cm)
The centimeter (cm) is one hundredth of a meter. It is the everyday metric unit for body height, clothing and small objects.
Frequently asked questions
How do I convert inches to centimeters?
cm = in × 2.54What is 12 in in centimeters?
How many centimeters are in an inch?
How many inches are in a centimeter?
Conversion factors use exact international definitions where they exist (for example 1 inch = 2.54 cm and 1 lb = 0.45359237 kg). Results are rounded for display only.