Gallon is a unit of volume so I assume you meant how many gallons per cubic foot. The answer is 7.48 gallons per cubic foot.
7,480.52 gallons for every inch of depth
A square foot has no volume. if you are asking how many gallons are in a cubic foot the answer id 7.4805195.
There are no gallons of water in a square foot. Gallons is a unit of volume, and square feet is a unit of area, not volume. If you are asking about cubic feet, however, the answer is there are about 7.5 gallons in a cubic foot.
One cubic foot of water is 7.4805 gallons.
A gallon is a measure of volume whereas a square foot is a measure of area. So there are no gallons in a square foot and no square feet in a gallon.
1 gallon
== 478.79 gallons, there are 7.481 gallons in a square foot. So that is 64 x 7.481== 478.79.==http://dictionary.reference.com/writing/styleguide/weights.html
There are 7.48052 US gallons per cubic foot.
7.5
1 cubic foot of water is 7.48052 US gallons.
A square foot equals an area 12"Wide x 12"Long x 1"Deep. A cubic foot equals an area 12"W x 12"L x 12"D. Therefore, a cubic foot contains 12 square feet. A cubic foot contains 7.48 gallons of water (trust me). You divide a cubic foot by 12 to get 12 square feet, therefore you would divide 7.48 by 12 to get the amount of water contained in 1 square foot. 7.48 divided by 12 equals .623 gallons. For every inch of rainfall there will be .623 gallons of water falling on every square foot.
One cubic foot of water is about 7.48 (7.48052) US gallons.