Converting centimeters to inches means that you are taking a length measured in metric units and converting it to imperial or English units. Knowing how to make this conversion is a helpful skill and it can be done with or without a calculator.Continue Reading
There are 2.54 centimeters (cm) in every 1 inch (in). The following equations assist in conversion: 2.54 cm = 1 in and 1 cm = 0.39 in because 1/2.54 = 0.39 This means that the same length would take more centimeters than it does inches.
If you have 54 cm, you want to get rid of cm. To cancel a centimeter, divide by centimeters. Use the conversion equations to form a fraction expression, such as 0.39 in /1 cm. 54 cm * 0.39 in /1 cm = 54 * 0.39 in = 21.26 in Because 0.39 is almost 0.4, you can often use 0.4 or 2/5 to estimate the conversion.
Use benchmark values and measurements to make sure your answer makes sense. For example, 21.26 in is a little less than 2 feet and a little more than half of 40 in (which is about the number of inches in a meter). Also, 54 cm is a little more than half of a meter. Also, if you have a yardstick available, check to see that 54 cm and 21.26 in measure about the same distance.