Square foot

The square foot is an Imperial unit / U.S. customary 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

A symbol for square foot, square feet, and “per square foot” commonly used in architecture, real estate and interior space plans is a simple square with a slash through it. It is also occasionally written as a square with a vertical line bisecting it.

Conversions

1 square foot is equivalent to:

• 144 square inches
• 0.111--> square yards
• 0.01 "squares". (A square is a unit used in Australia before metrication (and since) to measure the floor area of a house. 1 "square" = 100 sq. ft.)
• ≈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 root

The content of this page is retrieved from http://en.wikipedia.org/wiki/Square_foot under GFDL