The conversion
1 inch equals exactly 2.54 centimetres. The converter keeps full precision and rounds only what it shows.
Formula: Multiply the number of inches by 2.54 to get centimeters.
Going the other way, 1 centimetre = 0.393700787 inches.
Length & distance
Convert inches to centimeters
Enter a value in inches to see the exact equivalent in centimeters. 1 in = 2.54 cm.
Quick reference
| Inch | Centimetre |
|---|---|
| 1 in | 2.54 cm |
| 2 in | 5.08 cm |
| 5 in | 12.7 cm |
| 10 in | 25.4 cm |
| 25 in | 63.5 cm |
| 50 in | 127 cm |
| 100 in | 254 cm |
FAQ
How many centimeters are in 1 inch?
1 inch = 2.54 centimetres (rounded). The exact factor is 2.54.
What is the formula to convert inches to centimeters?
Multiply the number of inches by 2.54 to get centimeters.
Is this inches-to-centimeters conversion exact?
1 inch equals exactly 2.54 centimetres. The converter keeps full precision and rounds only what it shows.