Write down the number of centimeters you want to convert into inches. In the example problem, you would write down 103 centimeters.
Multiply the number of centimeters from Step 1 by 0.3937. One centimeter equals 0.3937 inches, meaning that you can convert between the two units using this factor. In the example, you would multiply 103 x 0.3937.
Change the units on the number you computed in Step 2 to inches. In the example, your result would be 40.55 inches.