A square centimeter (cm2) is a unit of area measurement equal to a square that is 1 centimeter on each side. It is used for measuring small areas such as on drawings. One square centimeter is defined as the area of a square whose sides are one centimeter each. Since 1 cm = 1/100 m, 1 cm2 = (1/100)x(1/100) = 1/10000 m2 = 0.0001 m2. The symbol for square centimeter is cm2.