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