1 acre = 43560 square feet 28 acres x 43560 square feet/acre =1219680 square feet you may try using the online converter linked below next time
300,000 ft² = 0.010761 square miles.
49 square miles X 52802 sq. ft./sq.mi. = 1,366,041,600 sq. ft.
9.5 square feet is 3.407656e-7 square miles.
Omaha, Nebraska has a total area of 257.67 square miles.
There are 5280 ft. in a mile. So if your question is how many square miles are in a mile, there aren't any.
287
473,932,800,000,000 sq ft
1.8 miles * 18 ft = 1.8*5280 ft * 18 ft = 171072 sq ft
There are 324 square miles of Memphis, Tennessee. So, there are 9,022,881,600 square feet.
2.5 million square feet = 0.09 square miles
Fort Sill, Oklahoma - 146.87 square miles.