Inches to CM Converter
Convert inches to centimeters instantly — centimeters = inches × 2.54
1 in = 2.54 cm(centimeters = inches × 2.54)
Inches to Centimeters conversion table
| Inches (in) | Centimeters (cm) |
|---|---|
| 0.5 | 1.27 |
| 1 | 2.54 |
| 2 | 5.08 |
| 3 | 7.62 |
| 4 | 10.16 |
| 5 | 12.7 |
| 6 | 15.24 |
| 8 | 20.32 |
| 10 | 25.4 |
| 12 | 30.48 |
| 15 | 38.1 |
| 20 | 50.8 |
| 24 | 60.96 |
| 32 | 81.28 |
| 36 | 91.44 |
How it works
Enter a value in inches and it is converted to centimeters using the exact factor: centimeters = inches × 2.54. The conversion also works in reverse — edit either field.
Inches to CM formula
centimeters = inches × 2.54
- in
- inches
- cm
- centimeters
Worked example
- Convert 12 inches to cm
- centimeters = inches × 2.54
12 × 2.54 = 30.48 cm (one foot)
Good to know
- The conversion factor is exact by definition (international yard and pound agreement, 1959) — rounding only comes from the decimals you keep.
- For the reverse conversion, see the CM to Inches converter below.
Related Calculators
Frequently Asked Questions
How do I convert inches to cm?
Multiply inches by 2.54. One inch is defined as exactly 2.54 centimeters, so 10 inches = 25.4 cm. Divide by 2.54 to convert back.
How many cm is 1 inch?
Exactly 2.54 centimeters — this has been the legal definition of the inch since 1959.
What is a 32-inch TV in cm?
TV sizes measure the diagonal: 32 inches × 2.54 = 81.3 cm diagonally. The screen itself is roughly 71 cm wide by 40 cm tall at 16:9.
Why does the US use inches while most countries use centimeters?
The US kept customary units when most of the world adopted the metric system. US customary units are nonetheless legally defined in metric terms, which is why the conversion factors are exact.