# Convert 1 Acre to Square Miles

How big is 1 acre? What is 1 acre in square miles? 1 acres to sq mi conversion.
1 Acre =
0.0015625 Square Miles
(exact result)
An acre is a unit of area equal to 1/640th of a square mile. It is about the size of an American football field.
A square mile is a unit of area. It is the size of a square that is one mile on a side. It is equal to 640 acres or approximately 2.59 square kilometers.
Acres to Square Miles Conversions
(some results rounded)
acres sq mi
1.00 0.0015625
1.01 0.0015781
1.02 0.0015938
1.03 0.0016094
1.04 0.001625
1.05 0.0016406
1.06 0.0016563
1.07 0.0016719
1.08 0.0016875
1.09 0.0017031
1.10 0.0017188
1.11 0.0017344
1.12 0.00175
1.13 0.0017656
1.14 0.0017813
1.15 0.0017969
1.16 0.0018125
1.17 0.0018281
1.18 0.0018438
1.19 0.0018594
1.20 0.001875
1.21 0.0018906
1.22 0.0019063
1.23 0.0019219
1.24 0.0019375
acres sq mi
1.25 0.0019531
1.26 0.0019688
1.27 0.0019844
1.28 0.002
1.29 0.0020156
1.30 0.0020313
1.31 0.0020469
1.32 0.0020625
1.33 0.0020781
1.34 0.0020938
1.35 0.0021094
1.36 0.002125
1.37 0.0021406
1.38 0.0021563
1.39 0.0021719
1.40 0.0021875
1.41 0.0022031
1.42 0.0022188
1.43 0.0022344
1.44 0.00225
1.45 0.0022656
1.46 0.0022813
1.47 0.0022969
1.48 0.0023125
1.49 0.0023281
acres sq mi
1.50 0.0023438
1.51 0.0023594
1.52 0.002375
1.53 0.0023906
1.54 0.0024063
1.55 0.0024219
1.56 0.0024375
1.57 0.0024531
1.58 0.0024688
1.59 0.0024844
1.60 0.0025
1.61 0.0025156
1.62 0.0025313
1.63 0.0025469
1.64 0.0025625
1.65 0.0025781
1.66 0.0025938
1.67 0.0026094
1.68 0.002625
1.69 0.0026406
1.70 0.0026563
1.71 0.0026719
1.72 0.0026875
1.73 0.0027031
1.74 0.0027188
acres sq mi
1.75 0.0027344
1.76 0.00275
1.77 0.0027656
1.78 0.0027813
1.79 0.0027969
1.80 0.0028125
1.81 0.0028281
1.82 0.0028438
1.83 0.0028594
1.84 0.002875
1.85 0.0028906
1.86 0.0029063
1.87 0.0029219
1.88 0.0029375
1.89 0.0029531
1.90 0.0029688
1.91 0.0029844
1.92 0.003
1.93 0.0030156
1.94 0.0030313
1.95 0.0030469
1.96 0.0030625
1.97 0.0030781
1.98 0.0030938
1.99 0.0031094