How much water do I need to fill my pool?

Aqua-Duck Water Transport provides the following water calculators to estimate the total gallons required to fill your swimming pool. These estimates are an approximation only.

Different variables can affect the volume of water needed to fill your pool, which include the pool manufacturer, the amount of sand used on the floor, and the slope transition in a multi-depth pool.

Call Aqua-Duck Water Transport and we’ll gladly quack-ulate (more duck humor) the estimated total amount for you.

Circular Pools

Round all dimensions to the nearest foot.

Rectangular Pools w/Flat Depth Floor

For pools with constant depth floors. Round all dimensions to the nearest foot.

Rectangular Pools w/Variable Depth Floor

For pools with multi-depth floors. Round all dimensions to the nearest foot.

Kidney & Irregular Shape Pools

Round all dimensions to the nearest foot.

Above Ground Pools – Round

Size & Shape	Gallons per inch	Gallons to Fill 48″ Wall	Gallons to Fill 52″ Wall
12′ Round	72	3,500	3,500
15′ Round	112	5,000	5,400
18′ Round	160	7,000	7,700
20′ Round	200	9,000	9,600
21′ Round	220	9,700	10,500
24′ Round	285	12,500	13,500
27′ Round	365	16,000	17,500
28′ Round	390	17,500	19,000
30′ Round	450	20,000	21,500
33′ Round	540	24,000	26,000

Above Ground Pools – Oval

Size & Shape	Gallons per inch	Gallons to Fill 48″ Wall	Gallons to Fill 52″ Wall
12′ x 24′ Oval	162	7,000	7,800
15′ x 30′ Oval	255	11,000	12,000
16′ x 32′ Oval	290	12,500	14,000
18′ x 33′ Oval	335	14,750	16,000
18′ x 36′ Oval	365	16,000	17,500
20′ x 40′ Oval	455	20,000	22,000
21′ x 41′ Oval	500	22,000	24,000

Inground Pools

Size	Gallons per inch
16′ x 28′	285
16′ x 32′	323
16′ x 36′	365
17′ x 33′	354
17′ x 35′	375
17′ x 37′	400
18′ x 36′	410
18′ x 40′	455
20′ x 36′	454
20′ x 40′	500