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|  | | Area size conversion
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|  | | |  Uses conversion factors to change units of area, including metric, imperial, and agricultural measurements. Note that the definition of some agricultural units changes from country to country.
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| | |  For reference, a football field may range from 4,000 to 10,000 m², France is 675,000 km², and the area of the USA is almost 10 million km². | | ||||||
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© Andy & Steve Shipway 2008