Square foot
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The square foot (plural square feet; abbreviated sq. ft, sf, ft^{2}) is an imperial unit and U.S. customary unit (non-SI, non-metric) of area, used mainly in the United States and partially in Bangladesh, Canada, Ghana, Hong Kong, India, Malaysia, Nepal, Pakistan, Singapore and the United Kingdom.^{[citation needed]} It is defined as the area of a square with sides of 1 foot.
Although the pluralisation is regular in the noun form, when used as an adjective, the singular is preferred. So, a flat measuring 700 square feet could be described as a 700 square-foot flat. This corresponds to common linguistic usage of foot.
Conversions[edit]
1 square foot is equivalent to:
- 144 square inches (sq in)
- ^{1}⁄_{9} square yard (sq yd)
- 0.09290304 square meters (symbol: m^{2})
1 acre is equivalent to 43,560 square feet.
See also[edit]
- Area (geometry)
- Conversion of units
- Cubic foot
- Metrication in Canada
- Miscellaneous Technical (Unicode) for a list of miscellaneous technical symbols and fonts which support the square foot symbol
- Orders of magnitude (area)
- Square (algebra), square root