Square centimeters and square millimeters metric area units conversion factor is 100. To find out how many square millimeters in square centimeters, multiply the square centimeter value by 100.
1 Square Centimeter = 100 Square Millimeters
1 Square Millimeter = 0.01 Square 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) and square millimeter (millimetre) are metric system area measurement units. 1 Square centimeter is equal to 100 square millimeters. The abbreviations are "cm2" and "mm2".