Formula
One international inch is 2.54 centimeters:
inches = centimeters / 2.54
Other length pairs are on the length converter. This page keeps one direction so the factor stays visible.
Assumptions
- The value can be zero and cannot be negative.
- The result is shown with up to six decimal places.
Worked example
2.54 centimeters equal 1 inch.
Input definitions
- Centimeters
- The length you want in inches.
Limitations
This is the international inch. It does not convert area or a tailor's measuring tape that has already rounded the mark.
Questions
How many centimeters are in an inch?
Exactly 2.54 centimeters.
Is a centimeter 10 millimeters?
Yes. The millimeters page divides by 25.4, which is the same inch written in millimeters.