Inches to Centimeters
Convert inches (in) to centimeters (cm). 1 in = 2.54 cm (and 1 cm = 0.39370079 in). It all runs locally in your browser.
Inches to Centimeters table
| Inches | Centimeters |
|---|---|
| 0.5 in | 1.27 cm |
| 1 in | 2.54 cm |
| 2 in | 5.08 cm |
| 3 in | 7.62 cm |
| 5 in | 12.7 cm |
| 10 in | 25.4 cm |
| 25 in | 63.5 cm |
| 50 in | 127 cm |
| 100 in | 254 cm |
Where this conversion shows up
Screens are the big one: TVs, monitors, laptops and phones are sized by their diagonal in inches everywhere in the world, even in fully metric countries. Paper (8.5×11″ US Letter), bike frames, and lumber dimensions also arrive in inches and regularly need translating to centimeters.
Worked example
A 55-inch TV: 55 × 2.54 = 139.7 cm diagonal. To check it fits your shelf you need the width, not the diagonal — for a 16:9 screen the width is about 87% of the diagonal, so roughly 122 cm.
Rounding and precision
Since the factor is exact, precision is only limited by your starting measurement. For furniture and DIY, round to the nearest half centimeter. Mental shortcut: multiply by 2.5 and nudge up slightly (10″ → 25 → 25.4 cm).
How to convert
To convert inches to centimeters, multiply by 2.54. Need other units? Use the full Unit Converter.
FAQ
How many centimeters in a inche?
1 inche equals 2.54 centimeters (cm).
How do I convert inches to centimeters?
Multiply the inches value by 2.54. For example, 5 in = 12.7 cm.
What is US Letter paper in centimeters?
US Letter is 8.5 × 11 inches, which is 21.59 × 27.94 cm — slightly wider and shorter than A4 (21.0 × 29.7 cm). This is why US documents print oddly on A4 paper.
How wide is a 65-inch TV in cm?
The 65 inches is the diagonal: 165.1 cm. A 16:9 screen that size is about 144 cm wide and 81 cm tall, before you add the bezel and stand.