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Pool Size Information

Knowing the proper number of gallons or liters in your swimming pool is very important for successful chemical care & treatment. And that goes along with first knowing the actual pool dimensions! Oh, we could tell you stories of 50,000 gallon aboveground pools... but here's what you're really after:

Aboveground Pools - based on 52" wall height pools, flat bottom (ACTUAL average approximate water depth of 44"; this is the true fill, not the capacity)

Pool Size	US Gallons	Liters	Surface Area (sq. ft.)
12 ft. Rnd	3,200	12,113	113
15 ft. Rnd	5,000	18,927	177
18 ft. Rnd	7,200	27,255	255
21 ft. Rnd	9,800	37,096	380
24 ft. Rnd	12,800	48,453	453
27 ft. Rnd	16,200	61,323	572
30 ft. Rnd	20,000	75,708	707
12 ft x 24 ft Oval	6,400	24,226	240
15 ft x 24 ft Oval	8,000	30,283	330
15 ft x 30 ft Oval	10,000	37,854	410
18 ft x 33 ft Oval	13,000	49,210	550

Inground Pools - based on a typical, rectangular (2 ft. radius corners), vinyl liner construction (ANSI / NSPI standard Type 1 Pool, 16x32 and larger; smaller pools are Type 0 with deep depth of 5'6") , with average wall height of 42", shallow end water fill of 36" depth and a deep end water fill depth of 7'6" (90"). Gallonage also takes typical piping & filtration system (100 lineal feet of pipe plus filter capacity) into consideration.

Pool Size	US Gallons	Liters	Surface Area (sq. ft.)
12 ft x 24 ft	8,900	33,690	288
14 ft x 28 ft	12,000	45,424	392
15 ft x 30 ft	13,800	52,239	450
16 ft x 32 ft	21,200	80,250	512
16 ft x 36 ft	23,900	90,471	576
18 ft x 36 ft	26,900	101,827	648
20 ft x 40 ft	33,000	124,918	800
20 ft x 44 ft	36,700	138,924	880

Gallonage Calculations (US gallons):
Rectangular Pools - length x width x average depth x 7.5
Round, Oval & Free-form Pools - aver. length x aver. width x aver. depth x 5.9

Convert to Liters: Gallons multiplied by 3.7854 = total liters

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