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This article explains the meaning of area as a physical quantity. The article area (geometry) is more mathematical. See also area (disambiguation). Area is a physical quantity expressing the size of a part of a surface. The term can also be used in a non-mathematical context to be mean "vicinity". Surface area is the summation of the areas of the exposed sides of an object.
Units Units for measuring surface area include: square metre = SI derived unit are = 100 square metres hectare = 10,000 square metres square kilometre = 1,000,000 square metres square megametre = 1012 square metres Imperial units, as currently defined from the metre: square foot (plural square feet) = 0.09290304 square metres square yard = 9 square feet = 0.83612736 square metres square perch = 30.25 square yards = 25.2928526 square metres acre = 160 square perches or 43,560 square feet = 4046.8564224 square metres square mile = 640 acres = 2.5899881103 square kilometres Old European area units, still in used in some private matters (e.g. land sale advertisements) square fathom (fahomia in some sources) = 3.34450944 square metres cadastral moon(acre) = 1600? square fathoms = 5755 square metres Useful formulae See also | ||||||||
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