How many gallons of water does it take to cover 7200 sq. ft. with a half inch of water?

Answer 1

First, 1/2 inch is 1/24 of a foot (1/2 x 1/12).

Figure out the volume of water by multiplying area times depth:
7200 sq. ft x 1/24 foot = 300 cu. ft.

1 cu. ft. is about 7.48 gallons, so multiply:

300 x 7.48 = 2,244 gallons

Answer 2

First define the volume = 7200(ft^2)*(1/24)(ft) = 300 ft^3 [0.5 inches = 1/24 ft]

Use the conversion 1 gal = 0.133680547094751 ft^3 to solve

Thus, # gallons = 300/0.134 = 2244.16 gallons

Answer 3

1/2"=1/24'
7200ft^2*1/24ft=300ft^3
1 ft^3=7.48gal so
300ft^3*7.48gal/ft^3=2244gal