what is cm

A centimeter (cm) is a unit of length in the International System of Units (SI), equal to one hundredth of a meter. It is a metric unit of measurement used for measuring the length of an object. A meter has 100 centimeters, and 10 millimeters make one centimeter. The centimeter can be written as cm, and while calculating the surface area of an object, the unit of measurement becomes cm². While measuring the volume of an object, the unit of measurement becomes cm³. One centimeter is roughly 2/5 of an inch.