Calculate Your Volume

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Calculate Your Pool Volume

There is a fairly simple formula to determine how many gallons of water your pool holds:

Length x Width x Avg. Depth x Multiplier= Gallons

Multipliers: Rectangle, Square, or Free-form: 7.5 multiplier

Round or Oval: 5.9 multiplier

Average Depth: To calculate the average depth simply find the depth of the shallow end and the depth of the deep end, add the two numbers, and divide by two.

Common Pool Volume Chart

Pool Size

Avg. Depth @ 3.5'

Avg. Depth @ 4'

Avg. Depth @ 4.5'

Avg. Depth @ 5'

Avg. Depth @ 5.5'

12' x 24'

7,600 gal
8,600 gal
9,700 gal
10,800 gal

11,900 gal

14' x 28'

10,300 gal
11,800 gal
13,200 gal
14,700 gal

16,200 gal

15' x 30'

11,800 gal
13,500 gal
15,200 gal
16,900 gal

18,600 gal

16' x 32'

13,400 gal
15,400 gal
17,300 gal
19,200 gal

21,100 gal

18' x 36'

17,000 gal
19,400 gal
21,900 gal
24,300 gal

26,700 gal

19' x 38'

19,000 gal
21,700 gal
24,400 gal
27,100 gal

29,800 gal

20' x 40'

21,000 gal
24,000 gal
27,000 gal
30,000 gal

33,000 gal

22' x 44'

25,400 gal
29,000 gal
32,700 gal
36,300 gal

39,900 gal

25' x 45'

29,531 gal
33,750 gal
37,968 gal
42,187 gal

46,406 gal

25' x 50'

32,800 gal
37,500 gal
42,200 gal
46,900 gal

51,600 gal

30' x 50'

39,375 gal
45,000 gal
50,525 gal
56,250 gal

61,875 gal