HOW TO DETERMINE THE AMOUNT OF WATER IN YOUR POOL

Knowing the volume of water (in gallons) in your swimming pool is important in all areas of swimming pool maintenance and chemical applications.

The volume of your pool is a calculation of your swimming pool’s dimensions multiplied by your pool’s average depth. The following chart is designed to help you estimate the number of gallons in your swimming pool.

We have listed below many of the most common dimensions with their calculated gallons.

Average Depth = depth at the deep end + the depth at the shallow end / 2.

Rectangular Pools – Multiply length x width x average depth x 7.5 = gallons

Round Pools– Multiply diameter x diameter x average depth x 5.9 = gallons

Oval Pools – Multiply full width x full length x average depth x 6.7 = gallons

* Irregular shapes and size pools capacity should be determined by your pool builder or specialist.

* If your pool has sloping sides, multiply your final figure of gallons by 0.85 for correct gallons.

Common Pool Sizes and Its Capacity In Gallons

Inground Pools (Average Depth 5 Feet)
Pool Size	US Gallons
12 ft x 24 ft	10,800
14 ft x 28 ft	14,700
15 ft x 30 ft	16,875
16 ft x 32 ft	19,200
16 ft x 34 ft	20,400
16 ft x 36 ft	21,600
18 ft x 36 ft	24,300
20 ft x 40 ft	30,000
20 ft x 44 ft	33,000
24 ft x 44 ft	39,600

 

Above Ground Pools (4 feet deep)
Pool Size	US Gallons
12 ft. Rnd	3,200
15 ft. Rnd	5310
18 ft. Rnd	7646
21 ft. Rnd	10,407
24 ft. Rnd	13,593
27 ft. Rnd	17,204
28 ft. Rnd	18,502
30 ft. Rnd	21,240
12 ft x24 ft Oval	6,400
15 ft x24 ft Oval	8,000
15 ft x 30 ft Oval	10,000
18 ft x 33 ft Oval	13,000