400 sq. miles = 27,878,400 sq. ft. x 100 = 2,787,840,000 sq. ft.
If you're talking about length and not area, 52.8 football fields (end-zones excluded) will have a length of 3 miles.
I guess you mean American football fields (base on use of "Fields" as opposed to "Pitches"). Assuming you mean the playing area including end zones, then: The field is 360ft long x 160ft wide meaning the area of 2 of them is area = 2 x 360ft x 160ft = 115,200ft2 1 mile = 5280ft, so 1 sq mile = 5280ft x 5280ft = 278,784,000ft2 So for 2 football fields area = 115,200ft2 = 115200 ÷ 278784000 sq miles ~=0.0041 square miles.
12 square km is equal to 4.63323 square miles.
8.2 sq km = 3.166 sq miles.
173,732 square miles.
4,832 miles = 85,043.2 American football fields.
187,475.2 American football fields.
1000
Well, a football field is 50 yards by 100 yards, so that is 5000 square yards.3.5 million square miles (5280 feet/1 mile)(1 yard/3 feet)= 6,160,000,000 yards square-------------------------------------------so,6,160,000,000 yrd2/5000 yrds2= 1,232,000 football fields====================
The Sahara is 9,000,000+ square kilometers or 3,300,000+ square miles which is millions of time greater than 30 football fields.
Before calculating, it is easier to convert sizes to similar units, in this case, feet. 1 sq. mile = 5280 feet x 5280 feet = 27,878,400 sq.ft. 100 sq. miles = 27,878,400 sq. ft. x 100 = 2,787,840,000 sq. ft. 1 football field (including end zones) = 360 ft. long by 160 ft. wide = 57,600 sq.ft. 100 sq. miles divided by 1 football field = x x = how many football fields fit into 100 square miles 2,787,840,000 sq. ft. divided by 57,600 sq. ft. = 48,400 football fields Therefore, 100 square miles = 48,400 football fields However . . . If endzones are not included in the calculation, then the size of one field = 300 ft. x 160 ft. = 48,000 sq. ft. 2,787,840,000 sq. ft. divided by 48,000 sq. ft. = 58,080 football fields Therefore, 100 square miles = 58,080 football fields
4,132,187 US, NFL fields would fit in that area.
15 miles = 264 American football fields.
56 American football fields is about 3.18 miles.
7,417 miles = 130,539.2 American football fields.
483,682,810 miles = 8,512,817,456 American football fields.
528 American football fields.