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Square mile (British/American), area
A square mile is an Imperial unit of area equal the area of a square of one statute mile (≈1,609 m) in length on each side. It is not a metric unit. The other major Imperial unit of area is the acre, of which there are 640 in a square mile.
1 Square mile
is equal to
3,097,599.55 yr²
Metric
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2.59
-
259
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25,899.88
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2,589,987.83
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258,998,783.22
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2.59×1010
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2.59×1012
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2.59×1018
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2.59×1024
British/American
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0.03
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1
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4
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640
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2,560
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102,400.01
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278,783.96
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3,097,599.55
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27,878,395.93
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4.01×109
Other
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2,589.99
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1,936
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1,036
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362.74
Brazilian
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107.02
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53.51
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26.73
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95.22