Centimeters to inches

There are 2.54 centimeters (cm) in 1 inch (in), or 0.3937008 inches in 1 centimeter. The centimeter is a unit of length in the metric system of measurement, and the inch is a unit of length in the United States customary system of measurement, imperial system, and other measurement systems.

cm to inches conversion

The following converter can convert from cm to inches or inches to cm. Just enter a value in either cm or inches to convert between the two.


centimeters to inches conversion explained

The exact length of an inch varied in the past in different measurement systems, but was defined to be exactly 2.54 cm or 25.4 mm during the 1950s and 1960s with the adoption of the international yard. Once you know the conversion between centimeters and inches, we can use basic arithmetic to convert a value in either unit to the other:

1 in = 2.54 cm

1 cm = in ≈ 0.3937008 in

To convert from one unit to the other, we just need to multiply or divide by the conversion factors above. Since multiplication and division are inverses, you can convert between inches and centimeters using either of the relationships above, paying attention to the units to make sure you choose the correct conversion factor for the operation. Either works, it just depends which you are more comfortable with.


1. To convert 24 inches to centimeters:

The inches cancel out, leaving us with the value in centimeters: 60.96 cm

2. To convert 126.345 cm to inches:

3. Convert 126.345 cm to inches using the other conversion factor: