Conversion formula

The conversion factor from centimeters to inches is 0.39370078740157, which means that 1 centimeter is equal to 0.39370078740157 inches:

1 cm = 0.39370078740157 in

To convert 20.4 centimeters into inches we have to multiply 20.4 by the conversion factor in order to get the length amount from centimeters to inches. We can also form a simple proportion to calculate the result:

1 cm → 0.39370078740157 in

20.4 cm → L_(in)

Solve the above proportion to obtain the length L in inches:

L_(in) = 20.4 cm × 0.39370078740157 in

L_(in) = 8.0314960629921 in

The final result is:

20.4 cm → 8.0314960629921 in

We conclude that 20.4 centimeters is equivalent to 8.0314960629921 inches:

20.4 centimeters = 8.0314960629921 inches

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 inch is equal to 0.12450980392157 × 20.4 centimeters.

Another way is saying that 20.4 centimeters is equal to 1 ÷ 0.12450980392157 inches.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that twenty point four centimeters is approximately eight point zero three one inches:

20.4 cm ≅ 8.031 in

An alternative is also that one inch is approximately zero point one two five times twenty point four centimeters.

Conversion table

centimeters to inches chart

For quick reference purposes, below is the conversion table you can use to convert from centimeters to inches