Inches to Centimeters
One inch equals 2.54 centimeters.
Centimeters = inches × 2.54
By Piero Nanni · Last checked
Inches to Centimeters Calculator
1 Inches = 2.54 Centimeters
How to Convert Inches to Centimeters
Formula:
Centimeters = inches × 2.54
Worked example:
10 inches × 2.54 = 25.4 centimeters
Inches to Centimeters Conversion Table
| in | cm |
|---|---|
| 1 | 2.54 |
| 1.5 | 3.81 |
| 2 | 5.08 |
| 2.5 | 6.35 |
| 3 | 7.62 |
| 4 | 10.16 |
| 5 | 12.7 |
| 6 | 15.24 |
| 7 | 17.78 |
| 7.5 | 19.05 |
| 8 | 20.32 |
| 9 | 22.86 |
| 10 | 25.4 |
| 15 | 38.1 |
| 20 | 50.8 |
| 25 | 63.5 |
| 30 | 76.2 |
| 40 | 101.6 |
| 50 | 127 |
| 60 | 152.4 |
| 70 | 177.8 |
| 75 | 190.5 |
| 80 | 203.2 |
| 90 | 228.6 |
| 100 | 254 |
| 150 | 381 |
| 200 | 508 |
| 250 | 635 |
| 300 | 762 |
| 400 | 1016 |
| 500 | 1270 |
| 600 | 1524 |
| 700 | 1778 |
| 750 | 1905 |
| 800 | 2032 |
| 900 | 2286 |
| 1000 | 2540 |
About This Conversion
Inches to centimeters is the direction needed for shipping dimensions, screen sizes and hardware specifications written for a US audience. Multiplying by 2.54 is exact, which makes it one of the few conversions where you can quote the result without any accuracy caveat.
Screen sizes are the common confusion here. A 27-inch monitor is 68.58 cm measured diagonally, not across, so the physical width of a 16:9 panel is closer to 59.8 cm. Converting the advertised number tells you the diagonal and nothing else.
Frequently Asked Questions
How many centimeters are in an inch?
Exactly 2.54 centimeters. The inch is defined by this relationship.
How many cm is 12 inches?
12 inches is exactly 30.48 cm, which is one foot.
How wide is a 27 inch monitor in cm?
The 27 inches is the diagonal, equal to 68.58 cm. A 16:9 panel of that diagonal is about 59.8 cm wide and 33.6 cm tall.
How do I convert a fraction of an inch to cm?
Turn the fraction into a decimal first. 3/8 in is 0.375 in, which is 0.9525 cm.