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
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The formula is feet=square root of sq.feet
Use this formula to convert from square inches to square feet, : square inches x 0.00694 = square feet
Use this formula: feet/5,280 = miles
They do not directly convert. Cubic feet is a measure of volume while square feet is a measure of area.
Use this formula: square meters x 10.764 = square feet