Square inch
square inch | |||||||
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Unit system | Imperial, United States customary units | ||||||
Unit of | area | ||||||
Symbol | in2, sq in | ||||||
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1 in2 in ... | ... is equal to ... | ||||||
Imperial/US | A square inch (plural: square inches) is a unit of area, equal to the area of a square with sides of one inch. The following symbols are used to denote square inches:
The square inch is a common unit of measurement in the United States and the United Kingdom. A common unit of pressure, pound per square inch (psi) is derived from this unit of area. Equivalence with other units of area1 square inch (assuming an international inch) is equal to: (the overbars indicate repeating decimals)
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