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v Pool capacity

 

To calculate the capacity of a pool:

1. Determine average depth of pool (in feet): (the depth at the shallow end + the depth at the deep end) / 2 = average depth.

2. Determine pool capacity.

 
Rectangle / Square Formula
Length (ft) x Width (ft) x Average Depth (ft) x 7.5 = approximate amount of gallons in the pool (the pool's capacity)
Pool Size 14 x 28 16 x 32 18 x 36 20 x 40  
Approx. Gallons 13,230 17,230 24,300 30,000  
 
Oval / Round Formula
Long Diameter x Short Diameter x Average Depth x 5.9 = approximate amount of gallons in the pool (the pool's capacity)
Pool Size 26 x 24 15 x 30 16 x 32 18 x 33 16 x 40
Approx. Gallons 10,000 12,000 13,500 15,500 30,000
 
Round Pool 16 feet 18 feet 21 feet 24 feet 28 feet
Approx. Gallons 6,000 7,500 10,000 13,500 18,000
 
* Sloping sides? If your pool has sloping sides, multiply your final figure by .85