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Convert Square Miles to Acres

mi2\mathrm{mi}^{2}
=
ac\text{ac}

Square Mile (mi²)

An imperial unit of area equal to the area of a square with sides of 1 mile.

Acre (ac)

An imperial unit of area equal to 4,840 square yards or 43,560 square feet.

Square Miles to Acres Conversion Table

Square Miles (mi²)Acres (ac)
1639.99943
21279.99887
53199.99717
106399.99434
2012799.98868
5031999.97171
10063999.94341
250159999.85853
500319999.71706
1000639999.43413

How to Convert Square Miles to Acres

Conversion factor:

1 mi2=639.99943 ac1\,\mathrm{mi}^{2} = 639.99943\,\text{ac}

Inverse factor:

1 ac=0.00156 mi21\,\text{ac} = 0.00156\,\mathrm{mi}^{2}

Example

Convert 15 mi² to ac:

ac=mi2×639.99943\text{ac} = \mathrm{mi}^{2} \times 639.99943
ac=15×639.99943\text{ac} = 15 \times 639.99943
ac=9599.99151\text{ac} = 9599.99151
=9599.99151 ac= 9599.99151 \, \text{ac}

All conversions from Square Miles (mi²)