- Square foot
The square foot is an
imperial unit/ U.S. customary unit(non- SInon-metric) of area, used mainly in the United Statesand United Kingdom. It is defined as the area of a square with sides of 1 foot (0.333... yards, 12 inches, or 0.3048 metres) in length.
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
*the equation is length times width.
A symbol for square foot, square feet, and "per square foot" commonly used in
architecture, real estateand 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:
1 inch = 2.54
square metre= 10.764 "square feet"
1 square foot is equivalent to:
* A block 12 inches by 12 inches has a square foot area of 1 square foot. 12 inches is equal to 1 foot.
* 0.01 "squares". (A square is a unit used in
Australiabefore metrication (and since) to measure the floor area of a house. 1 "square" = 100 sq ft)
* 92 903.04
metrication, the square foot was in use throughout Europe, as part of the traditional system of measurement, which showed considerable local variation. Some examples below:
Bavarian square foot = 0.0864751 m²
Prussian square foot = 0.098504 m²
* Viennese square foot = 0.099921 m²
Parisian square foot = 0.105521 m² ["Das Hauslexikon", vol. VI, Leipzig: Breitkopf und Härtel 1837, p. 596]
1 E-1 m²for a comparison with other areas
Orders of magnitude (area)
Conversion of units
Square (algebra), square root
Miscellaneous Technical (Unicode)for a list of miscellaneous technical symbols and fonts which support the "square foot" symbol
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