| How to convert Square Feet to Square Miles: 1 square foot is approximately equal to 3.59e-8 square miles. 1 ft2 ≈ (3.59 * 10-8) ≈ 3.59e-8 mi2 The areaQ(mi2) in square miles is approximately equal to the area Q(ft2) in square feet multiplied by 3.59e-8. | 
| Formula: Q(mi2) ≈ Q(ft2) * 3.59e-8 | 
| Square Feet to Square Miles conversion table 
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