If you know gallons, multiply gallons by 0.133681 to get cubic feet.If you know cubic feet, multiply cubic feet by 7.48052 to get gallons.
30 gallons is 4.01 cubic feet.
Conversion: US gallons x 0.133681 = cubic feet
Five gallons is 0.668 cubic feet.
100 gallons = 13.37 cubic feet.
there are 8.9018181522225266627406905758232 gallons in 1.19 cubic feet
13 US gallons = 1.73784722 cubic feet[Google "13 gallons into cubic feet"]
5,400 gallons equates to 721.9 cubic feet.
5,000 US gallons equates to about 668.4(668.402778) cubic feet.
250 US gallons is 33.4201 cubic feet.
4,000 US gallons = 534.72 cubic feet.
3 (cubic feet) = 22.4415584 US gallons FYI: Google "convert 3 cubic feet to gallons"