1,597,000 liquid gallons (US)
13 US gallons = 1.73784722 cubic feet[Google "13 gallons into cubic feet"]
300,000 gallons is equivalent to 2,511.56 cubic feet.
2000 cubic feet is equal to approximately 14,965 liquid gallons.
280 gallons equals 37.43 cubic feet.
6.9 cubic feet equals 51.6 US gallons.
280 cubic feet = about 1,744 Imperial gallons OR 2,095 US gallons.
279 gallons = 37.3 cubic feet.
1,578,943 (cubic feet) = 11,811,313.9 US gallons
89.76 gallons.
5,000 US gallons equates to about 668.4(668.402778) cubic feet.
You need 200.4 cubic feet to contain 1500 gallons, provided your .1336 cf/g is correct.
27 US gallons = 3.609375 cubic feet, no matter what's in the gallons, and even if they're empty.