About Units

Square centimeter: A square centimeter is a unit of area in the metric system. It is the area of a square with one centimeter on each side. This unit is commonly used in scientific and engineering contexts, particularly when dealing with small areas such as in electronics or materials science.

Square miles: A square mile is a unit of area in the imperial and US customary systems. It is equal to 640 acres or approximately 2.59 square kilometers. Square miles are typically used to measure larger areas, such as the size of cities, counties, or large natural features like lakes and forests.