Calculators can be used to convert measurements from one unit to another

Convert Square Feet to Square Miles

Convert from square feet to square miles with this simple formula:
square miles = square feet × 3.587E-8
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1 Square Foot = 3.587E-8 Square Miles

Learn How to Convert Square Feet to Square Miles Using our Conversion Formula

Converting a square foot area measurement to a square mile measurement involves multiplying your area by the conversion ratio to find the result. A square foot is equal to 3.587E-8 square miles, so to convert simply multiply by 3.587E-8.

For example, 5sq ft = (5 × 3.587E-8) = 1.7935E-7sq mi.

Learn more on how to find the square footage of your space using our square footage calculator.

Square feet and square miles are both units used to measure area. Learn more about area and find more area measurement conversion calculators. A square foot is an imperial measurement and can be abbreviated as sq ft, for example 1sq ft. A square mile is an imperial measurement and can be abbreviated as sq mi, for example 1sq mi.

square feet and square miles are units used to measure area
Convert Square Miles to Square Feet

More Area Conversions

Convert to Acres Area
1sq ft is equal to 2.2957E-5 acres
Convert to Square Yards Area
1sq ft is equal to 0.111111 square yards
Convert to Square Inches Area
1sq ft is equal to 144 square inches
Convert to Square Kilometers Area
1sq ft is equal to 9.2903E-8 square kilometers
Convert to Square Meters Area
1sq ft is equal to 0.092903 square meters
Convert to Square Centimeters Area
1sq ft is equal to 929.0304 square centimeters
Convert to Square Millimeters Area
1sq ft is equal to 92,903 square millimeters

Square Foot Measurements and Equivalent Square Mile Conversions

Common square foot values converted to the equivalent square mile value
Square Feet Square Miles Square Feet Square Miles Square Feet Square Miles
1 0.00000003587 21 0.00000075327 41 0.0000014707
2 0.00000007174 22 0.00000078914 42 0.0000015065
3 0.00000010761 23 0.00000082501 43 0.0000015424
4 0.00000014348 24 0.00000086088 44 0.0000015783
5 0.00000017935 25 0.00000089675 45 0.0000016142
6 0.00000021522 26 0.00000093262 46 0.00000165
7 0.00000025109 27 0.00000096849 47 0.0000016859
8 0.00000028696 28 0.0000010044 48 0.0000017218
9 0.00000032283 29 0.0000010402 49 0.0000017576
10 0.0000003587 30 0.0000010761 50 0.0000017935
11 0.00000039457 31 0.000001112 51 0.0000018294
12 0.00000043044 32 0.0000011478 52 0.0000018652
13 0.00000046631 33 0.0000011837 53 0.0000019011
14 0.00000050218 34 0.0000012196 54 0.000001937
15 0.00000053805 35 0.0000012555 55 0.0000019729
16 0.00000057392 36 0.0000012913 56 0.0000020087
17 0.00000060979 37 0.0000013272 57 0.0000020446
18 0.00000064566 38 0.0000013631 58 0.0000020805
19 0.00000068153 39 0.0000013989 59 0.0000021163
20 0.0000007174 40 0.0000014348 60 0.0000021522