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The handiest area calculator available, PRO Area Calculator allows you to easily calculate the area of the 4 most common shapes and have the units converted instantly to sq. inches, sq. feet, sq. millimeters & sq. meters. It also does not matter what type of units you input, as PRO Area Calculator will convert them for you.
This helps avoid costly math mistakes caused by converting feet inches" into inches" and back. PRO Area Calculator also converts instantly between metric and imperial measurements.