Used very often in the framework of the Imperial system, square inches are the units of area which represent a square-shaped area with one inch on each side. One square inch is equal to 6.4516 square centimeters and can be marked with the symbols of sq in or in2. It is widely used primarily in architecture, engineering, construction, and other related areas requiring measuring of relatively small areas.
Square Inch Conversions
Please select area unit to convert Square Inch to.