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One international acre is equal 4046.8564224
m2. One U.S. survey acre is equal to 62,726,400,000⁄15,499,969 m2 = 4046.8726098 m2.
The area of one acre (red) overlaid on an American football field
One acre comprises 4,840
square yards or 43,560
square feet[1] (which can be easily remembered as 44,000 square feet, less 1%). Because of alternative definitions of a yard or a foot, the exact size of an acre also varies slightly. Originally, an acre was a
selion of land one
furlong (660 ft) long and one
chain (66 ft) wide; the measure appears to have begun as an approximation of the amount of land an
ox could plow in one day. However, an acre is a measure of area, and has no particular width, length or shape.
The acre is often used to express areas of land. In the
metric system, the
hectare is commonly used for the same purpose. An acre is approximately 40% of a hectare.
One acre is 90.75 yards of a 53.33-yard-wide
American football field. The full field, including the end zones, covers approximately 1.32 acres.