There is a foot, a square foot, and a cubic foot, but there is no such thing
as a square cubic foot.
A foot and a square foot have no volume, so they're not related to gallons
in any way.
One cubic foot is the same volume as 7.48052 gallons. (rounded)
28,000 US gallons equates to 3,743.1 cubic feet.
1 Imperial gallon = 0.1605 cu ft (to 4 dp) 1 US gallon = 0.133681 cubic feet
1 cubic ft = 1 ft * 1 ft * 1ft 1 cubic ft = 12 in * 12 in * 12 in 1 cubic ft = 1728 cubic inches
7.481 gal - 1 cu ft; 17,000 gal = 2,272.42 cu ft
1 cu ft ≈ 6.22884 imp gal → 72 million cu ft ≈ 72 million × 6.22884 imp gal ≈ 448.5 imperial gallons 1 cu ft ≈ 7.48052 US gal → 72 million cu ft ≈ 72 million × 7.48052 U gal ≈ 538.6 US gallons
7 ft x 2 ft x 2 ft = 28 cu ft 1 cu ft = 7.48052 gal 1 cu ft = 28.3168 L So, the volume of the aquarium is: 209.455 gal = 792.872 L
1 cubic ft of water = 1728 cubic in of water
7.48 gallons = 1 cubic ft.
(229 and 1/3) cubic ft.
1 Cubic Foot = 7.48051948 Gallons
(3,600 square ft) x (1 ft) = 3,600 cubic ft.1 cubic yard = 27 cubic ft3,600 cubic ft = 3,600/27 = (133 and 1/3) cubic yards
1 US gallon = 0.134 cubic ft (approx)