Convert Inches to Centimeters
in to cm · length conversion
What are inches and centimeters?
An inch is an imperial unit equal to exactly 2.54 cm, widely used in the US and UK. A centimeter is one-hundredth of a meter, roughly the width of an adult fingernail. For scale: a doorway is about 2 m (6.6 ft) tall, and a marathon is 42.2 km (26.2 mi).
How to convert inches to centimeters
1 in = 2.54 cm. To convert, multiply the number of inches by 2.54. For example, 5 in = 12.7 cm, and 20 in = 50.8 cm. To go the other way, multiply centimeters by 0.393701 (since 1 cm = 0.393701 in).
Inches to Centimeters conversion table
| Inches (in) | Centimeters (cm) |
|---|---|
| 1 | 2.54 |
| 2 | 5.08 |
| 5 | 12.7 |
| 10 | 25.4 |
| 20 | 50.8 |
| 50 | 127 |
| 100 | 254 |
FAQ
What is 1 in in cm?
1 in = 2.54 cm. To convert any amount, multiply the number of inches by 2.54.
How do I convert centimeters back to inches?
Go the other way: 1 cm = 0.393701 in, so multiply centimeters by 0.393701 to get inches.
Is a inche bigger than a centimeter?
Yes — 1 in is the larger unit, equal to 2.54 cm.
Are these length conversions exact?
They use the standard internationally-defined conversion factors. Results are rounded to six significant figures for readability, which is accurate enough for everyday and most technical use.