1 square mile = 27,878,400 square feet.
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To calculate square feet you need both a length and a width.1 mile is equal to 5,280 linear feet. One square mile (1 mile x 1 mile) is equal to 27,878,400 square feet.
1 square mile = 27,878,400 square feet.
1 mile = 5280 ft
1 mile = 5280 feet 1 square mile = 5280 x 5280 = 27878400 square feet Therefore 1 square feet = (1/27878400) = 0.00000003587006428 square mile Multiply square feet by 0.00000003587006428 to get the value converted to square miles
1 mile * 1 mile = 5280*5280 sq ft = 27878400 sq ft