Inches to Centimeters
Enter a value in Inches and get the result in Centimeters instantly.
1 in = 2.54 cm
How to convert Inches to Centimeters
Multiply the number of Inches by 2.54 to get Centimeters. To go the other way, divide by that same number instead.
Need the opposite direction? Use the Centimeters to Inches converter.
Inches to Centimeters conversion table
| Inches | Centimeters |
|---|---|
| 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 |
| 20 in | 50.8 cm |
| 50 in | 127 cm |
| 100 in | 254 cm |
Metric and imperial length
The metric system builds every length unit from the meter: 1 km is 1,000 m, 1 cm is one hundredth of a meter. Imperial units relate to each other in twelves and thousands instead — 12 inches to a foot, 3 feet to a yard, 1,760 yards to a mile. The bridge between the two systems is exact: 1 inch is defined as precisely 2.54 cm.
Common questions
How many centimeters are in 1 in?
One in equals 2.54 cm. Multiply any number of inches by 2.54 to get the same amount in centimeters.
How do I convert inches to centimeters quickly?
For a rough figure in your head, round 2.54 to the nearest easy number and adjust. Use the converter above when the exact value matters.
Is this conversion exact?
The ratio between inches and centimeters is a fixed, defined value, so the conversion is exact. Results are rounded for display only.