Square foot

The square foot is an Imperial unit (non-SI non-metric) of area, used in the United States. It is defined as the area of a square with sides of 1 foot (0.3 yards, 12 inches, or 0.3048 metres) in length.

Symbols

There is no universally agreed symbol but the following are used:

• square feet, square foot, square ft
• sq feet, sq foot, sq ft, SF
• feet/-2, foot/-2, ft/-2
• feet^2, foot^2, ft^2
• feet², foot², ft²

Conversions

1 square foot is equivalent to:

• 144 square inches
• 0.111--> square yards
• ≈0.00002295684110 acres
• ≈92 903.04 square millimetres
• ≈929.0304 square centimetres
• ≈0.09290304 square metres
• ≈0.000000092903040 square kilometres

See also

• 1 E-1 m² for a comparison with other areas
• Cubic foot
• Orders of magnitude (area)
• Conversion of units
• Area (geometry)
• Square (algebra), square rootde:Quadratfuß

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