Square centimeters and square millimeters (cm2 to mm2) metric area units conversion factor is 100. To find out how many square millimeters in sq. centimeters, multiply the sq. centimeter value by 100 or use the converter.
1 Sq. Centimeter = 100 Sq. Millimeters
1 Sq. Millimeter = 0.01 Sq. Centimeter
There are 100 square millimeters in a square centimeter, because one centimeter is 10 millimeters and the area of a square is calculated by multiplying a side by itself, that makes 10 * 10 = 100 square millimeters in a square centimeter.
For example, to find out how many sq. millimeters there are in a square centimeter and a half, as a formula to convert from sq. centimeters to sq. millimeters, multiply the sq. centimeter value by 100, that makes 1.5 cm2 * 100 = 150 sq. millimeters in 1.5 sq. centimeter.
Square centimeter (centimetre SI spelling) and square millimeter (millimetre SI spelling) are metric system area measurement units and one sq. centimeter equals to 100 sq. millimeters. The abbreviations are "cm2" and "mm2".