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How big is 1 Square Miles? What is 1 Square Miles in Acres? This area calculator will allow you to easily convert 1 sq mi to ac.


Result

1 Square Miles = 639.99943412918 Acres

or

1 Square Miles is equal to 639.99943412918 Acres

Square Miles

(Abbreviations: sq mi, mi²,mi^2)

A square mile is equal to the area of a square with sides of one mile (mi) in length. Square miles are used to measure large land areas, such as the size of states, counties, or national parks.


Acres

(Abbreviations: ac)

An acre is a unit of area commonly used in the United States, United Kingdom, and other countries for measuring land. It is equivalent to 43,560 square feet, or about 4,047 square meters. Historically, an acre was defined as the area of land a yoke of oxen could plow in a single day.One acre is approximately 0.405 hectares or 1/640 of a square mile.

Square Miles to Acres Conversions

Square Miles Acres
1 639.99943412918
2 1279.9988682584
3 1919.9983023875
4 2559.9977365167
5 3199.9971706459
6 3839.9966047751
7 4479.9960389042
8 5119.9954730334
9 5759.9949071626
10 6399.9943412918
11 7039.9937754209
12 7679.9932095501
13 8319.9926436793
14 8959.9920778085
15 9599.9915119376
16 10239.990946067
17 10879.990380196
18 11519.989814325
19 12159.989248454
20 12799.988682584
21 13439.988116713
22 14079.987550842
23 14719.986984971
24 15359.9864191
25 15999.985853229
26 16639.985287359
27 17279.984721488
28 17919.984155617
29 18559.983589746
30 19199.983023875
Square Miles Acres
31 19839.982458004
32 20479.981892134
33 21119.981326263
34 21759.980760392
35 22399.980194521
36 23039.97962865
37 23679.97906278
38 24319.978496909
39 24959.977931038
40 25599.977365167
41 26239.976799296
42 26879.976233425
43 27519.975667555
44 28159.975101684
45 28799.974535813
46 29439.973969942
47 30079.973404071
48 30719.9728382
49 31359.97227233
50 31999.971706459
51 32639.971140588
52 33279.970574717
53 33919.970008846
54 34559.969442976
55 35199.968877105
56 35839.968311234
57 36479.967745363
58 37119.967179492
59 37759.966613621
60 38399.966047751

Most Frequently Used Area Unit Conversions:


Metric:

Square Meters (m²) to Square Centimeters (cm²)
Square Meters (m²) to Square Millimeters (mm²)
Square Kilometers (km²) to Hectares (ha)
Hectares (ha) to Square Meters (m²)
Square Meters (m²) to Square Decimeters (dm²)

Imperial/US Customary:

Square Feet (ft²) to Square Inches (in²)
Square Yards (yd²) to Square Feet (ft²)
Acres (ac) to Square Feet (ft²)
Acres (ac) to Square Yards (yd²)
Square Miles (mi²) to Acres (ac)

Common Metric-Imperial Conversions:

Square Meters (m²) to Square Feet (ft²)
Square Feet (ft²) to Square Meters (m²)
Acres (ac) to Hectares (ha)
Hectares (ha) to Acres (ac)

Less Common but Useful:

Square Miles (mi²) to Square Kilometers (km²)
Square Kilometers (km²) to Square Miles (mi²)
Square Yards (yd²) to Square Meters (m²)

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