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Area is a quantity expressing the size of a region of space. Surface area refers to the summation of the areas of the exposed sides of an object.

1 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

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

acreThis article is about the unit of measure known as the acre''. For other definitions, see Acre (disambiguation). An acre is a measure of land area in Imperial units or U. customary units. It is equal to 43 560 square feet, or 4840 square yards. The precis - 160 square perches or 43,560 square feet - 4046.8564224 square metres

square mileThis article is about the unit of measure. In England, the Square Mile is a traditional name for the City of London. A square mile (symbol sq. or mi is an imperial unit which is the area of a square whose side is one mile (or 5,280 feet). A square mile is - 640 acres - 2.5899881103 square kilometres

The article Orders of magnitudeAn order of magnitude is the class of bigness, the class of size, the class of magnitude, of any amount, where each separate class contains ten times larger amounts than the one before. It is generally used to make very approximate comparisons. If two num links to lists of objects of comparable surface areaOrders of magnitude ( surface area m² equal to. Imperial units orders of magnitude 10-8 10-8 m2 _ _ 10-7 m2 10-6 1 square millimetre 1 mm2, 10 mm2 10-4 1 square centimetre 1 cm2, 10 cm2 10-2 100 square centimetres 100 cm2, 1000 cm2 1 10 000 square centime.

2 Cross sectional area of electrical wire

Rough figures for the cross sectional area of copper conductor:

3 External link

• Conversion of English and American units of area to metric units

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