Convert inch to cm

Distance (in inches):
Distance (in centimeters):

The calculator allows you to convert inches to cm.

Perform the reverse calculation: convert centimeters to inches

1 inch = 2.54 cm
1 cm = 1 / 2.54 inch or approximately 0.3937 inch

To convert inches to centimeters, multiply by 2.54.


We are going to convert a distance d of 10 inches to centimeters.
Distance d = 10 inches
1 inch = 2.54 cm
d = 10 inches = 10 x 2.54 = 25.4 cm


The inch is a unit of length. Its origin goes back to the Middle Ages. Its length has varied over the years to be frozen in 1959 at 2.54 cm: a twelfth of a foot, another unit of length.

The symbol for inch is the double prime: ". "5 inches" is written 5".
The correct use of the double prime is to indicate the unit of measure inches: 5” (five inches)
Another symbol for the unit of measurement "inch" is "in".

The plural of "inch" is "inches".

The inch is used to measure for example:
- wheel sizes and vehicle tire sizes
- the dimensions of screens
- the sizes of electronic components,
- the resolution of printers and scanners expressed in dots per inch (dots per inch = DPI)

To go further

The relationship between inch and cm is that 1 inch is exactly equal to 2.54 cm. 1 inch is equal to 2.54 cm, which is the conversion factor from inches to centimeters. The SI unit (International System of Units) for distance is the meter (m). Distance is defined as the numerical measurement of how far apart the objects are from each other. There are 100 centimeters in a meter (m) and 1000 meters in a kilometer (km). The basic units of the CGS system are centimeter (cm), gram (g), and second (s). CGS system is a metric system of measurement that uses the centimeter, gram and second for length, mass and time.