A foot is a measure of length or distance in 1-dimensional space while a kilometre squared is a measure of area in 2-dimensional space. The two measure different things and, according to basic principles of dimensional analysis, conversion from one to the other is not valid.
7 billion square feet = 251.09045 square miles.
Lots! About 446 billion square feet of total area. (446,054,400,000 square feet)
1.615 billion square feet.
1 billion feet = 189,393.94 miles.
Planet Saturn has a surface area of 16.49 billion square miles.
Answer: 1 billion acres = 1,562.5 mi²
2.2 billion square feet equates to 78.91 square miles.
1.672704 × 1017 square feet.
About 294.2 billion square feet. (294,256,512,000)
1,567.5218 (rounded)
Lots! About 446 billion square feet of total area. (446,054,400,000 square feet)
About 2.2 billion square feet. (2,230,272,000)
There are about189, 393miles in 1 billion feet
0.77 square miles = 21,470,000 square feet.
Two square miles is 55,756,800 square feet.
27,133 square miles is 756,420,000,000 square feet.
Almost 300 billion square feet. (298,689,177,600)
5.28 × 1012 feet