The symbol is mi². Multiply the value in square miles by the conversion factor 27878400. Square Meters To Square Feet Conversion Sq M To Sq Ft There are 27878400 square feet in 1. . How many square feet are in an acre. Area is commonly represented in the form of a square with sides of a specific unit of length written as square followed by the chosen unit of length. There are 5280 feet in a mile and 27878400 square feet in a square mile. We assume you are converting between square foot and square mile. One square mile is equal to a square-shape area with one mile at every side. How many square mile in 1 square feet. There are 27878400 square feet in a square mile. It is 144 square inches 19 th of a square yard or approximately 0093 square meters. 1 sq mile 27878400 sq feet. 11 rows A square mile is a large area that is equal to 27878400 square feet 3097600 square. 147 rows It is the size o...