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The centimeter (abbreviated as cm) and inch (abbreviated as in) are both unit of length, where cm is in SI units. One centimeter = 0.3937 inches. Converting the centimeters to inches is the easiest one, for example, 2 cm = 0.3937 X 2 = 0.7874 inches and 20 cm = 0.3937 X 20 = 7.874. For more information look here: http://en.wikipedia.org/wiki/Centimeter...;

