The acre is a unit of area in a number of different systems, including the imperial and U.S. customary systems. Its international symbol is ac.

The most commonly used acres today are the international acre. In the United States both the international acre and the slightly different US survey acre are in use. The most common use of the acre is to measure tracts of land. One international acre is equal to 4046.8564224 square metres.

During the Middle Ages, an acre was the amount of land that could be plowed in one day with a yoke of oxen.

Read more about AcreDescription, Difference in Measurement, South Asia, Equivalence To Other Units of Area, Historical Origin, Other Acres

Other articles related to "acre, acres":

List Of Mesoregions Of Acre
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Acre Prison Break - Aftermath
... to take "in light of the events at Acre prison which had reduced British prestige to a nadir." The Acre Prison break, with other operations had a ... is marked by a monument on the Acre promenade ...
Acre, Lancashire
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Acre (Irish)
... An Irish acre is a unit of area historically used in Ireland, Yorkshire, and regions bordering the Solway Firth ... One Irish acre is equal to about 1.62 acres (6,600 m2) (196⁄121) acre, 7,840 square yards, or 70,560 square feet ... The difference between the Irish acre and the statute acre arises from the fact that the Irish mile is 14⁄11 miles (1.273 miles (2.049 km)) ...
Coomb (unit)
... Yields were referred to in coombs per acre ... a morning (Morgen), and is about one third of a hectare, which is similar to an acre ... It is easy to infer that the UK acre is derived from the same Germanic word base ...

Famous quotes containing the word acre:

    Only by himself, with one acre and a house, will a dunce be a dunce. Once he manages to gain power, he’ll turn into a scoundrel.
    Franz Grillparzer (1791–1872)

    ... a family I know ... bought an acre in the country on which to build a house. For many years, while they lacked the money to build, they visited the site regularly and picnicked on a knoll, the site’s most attractive feature. They liked so much to visualize themselves as always there, that when they finally built they put the house on the knoll. But then the knoll was gone. Somehow they had not realized they would destroy it and lose it by supplanting it with themselves.
    Jane Jacobs (b. 1916)

    And every acre good enough to eat,
    As fine as flour put through a baker’s sieve.
    Robert Frost (1874–1963)