Convert Square Feet to Square Miles

Enter your square foot value in the form below to get the value calculated in square miles.

Results in Square Miles:

1 sq ft = 3.587E-8 sq mi

How to Convert Square Feet to Square Miles Using an Easy Conversion Formula

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

Save Share Tweet

Convert square feet to square miles with this simple formula:

square miles = square feet × 3.587E-8

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

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

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 Hectares Area: 1sq ft is equal to 9.2903E-6 hectares
Convert to Ares Area: 1sq ft is equal to 0.000929 ares
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