The short answer is approximately 30,000 U.S. gallons is the capacity of a 20' x 40' pool.
Determine your pool volume by with these easy to use formulas:
Rectangular Pools: Length x Width x Average Depth x 7.5 = Gallons
Oval Pools: Length x Width x Average Depth x 5.9 = Gallons
Round Pools: Diameter x Diameter x Average Depth x 5.9 = Gallons
Gregg Dietz
<a href="http://www.dietzpools.com/">Dietz Pools &</a><a href="http://www.dietzpools.com/">Pool Supplies</a>
5284.62 gallons
7,646 gallons.
18,000
5300 Gal
How many gallons of water for a 15'x30' swimming pool?
It is 30.6 cubic feet = 190.3 Imperial gallons.
13,346 gallons per vertical foot.
One cubic foot of water is 7.4805 gallons.
There are 7.48052 US gallons per cubic foot.
There is NO way to calculate this without knowing how deep the pool is filled!
How many gallons will fit into a 24 foot diameter x 4 foot high round swimming pool
1 cubic foot of water is 7.48052 US gallons.