1 Inch to Centimeters
1 Inch is 2.54 Centimeters. Formula, worked steps and a table of nearby values.
How to use it
- The value is pre-filled at 1 in — change it to convert any other amount.
- Use Swap to flip the direction, or change either dropdown for a different unit pair.
Examples
| 1 in | 2.54 cm |
1 Inch is 2.54 Centimeters.
That comes from the fixed relationship between inch and centimeter: 1 in = 2.54 cm.
The working
1 in = 2.54 cm
1 in × 2.54 = 2.54 cm
Nearby inch values
| in | cm |
|---|---|
| 1 in | 2.54 cm |
| 2 in | 5.08 cm |
| 3 in | 7.62 cm |
| 4 in | 10.16 cm |
| 5 in | 12.7 cm |
About inch and centimeter
Inch (in) — An inch is exactly 25.4 millimetres by international agreement since 1959. Screen sizes, pipe and tyre diameters, and construction in the US.
Centimeter (cm) — A centimetre is a hundredth of a metre. Body measurements, clothing sizes, paper and furniture dimensions across most of the world.
Need a different value?
This page is fixed to 1 inch. For any other amount, the full inch-to-centimeter converter takes any number and updates as you type.
Questions people ask
What is 1 inch in centimeters?
1 Inch is 2.54 Centimeters.
How do you convert inch to centimeters?
Multiply the number of inch by 2.54 to get centimeters.
Last updated 26 August 2026