Usage of centimeter
It is a measure of a unit of length. Centimeters are also used in the following cases:
To report the amount of precipitation,
In the CGS system, as the measurement capacitance,
It is used in Canada maps, when converting from map scale to real scale.
What is Inch?
The inch is a unit of length in the (British) imperial and United States customary systems of measurement. Symbol of Inch is ". It is equal to 1⁄36 yard or 1⁄12 of a foot.
1 inch = 2.54 centimeters