Units of Measure
Length and Distance

# How many centimetres are there in 8.5 inches?

###### July 09, 2012 8:25PM

21.59 centimeters.

Solution:

1. 2.54 centimeters = 1 inch. You can express this as the fraction 2.54 cm / 1 inch (read aloud as "2.54 centimeters per inch")

2. To convert 8.5 inches to centimeters, cancel the inches in the numerator and denominator & multiple 2.54 * 8.5 = 21.59 cm (see below. Note: Disregard the _ character. It is only included to make the fractions align properly for easier viewing.

2.54 cm__8.5 inches___ 21.59 cm

--------- * ----------- = ----------- = 21.59 cm

1 inch_______1__________1