Best Answer

Length x Width x Average Depth = volume for a rectangular pool

Average depth x 0.5 diameter x 0.5 diameter x 3.1416 = volume of circular pool

A swimming pool that measures 12 feet by 30 feet and has an average depth of 6 feet contains approximately 16,157 gallons of water.

12 x 30 x 6 = 2,160 cubic feet

1 cubic foot = approximately 7.48 gallons

2160 x 7.48 = 16,156.8 gallons

A circular pool that has a diameter that measures 20 feet and an average depth of 6 feet contains approximately 14,100 gallons of water.

6 x 0.5 x 20 x 0.5 x 20 x 3.1416 = 1885 cubic feet

1885 x 7.48 = 14,099.5 gallons

See related link for unit of measure conversion tool.

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Q: How many gallons are in a swimming pool?

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Related questions

it depends on the size of the swimming pool. The average olympic pool contains up to 1,000 gallons of water and 300 gallons of chlorine.

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A round swimming pool 12 feet across by 4 feet deep will hold 452 ft3 which converts to 3,381 gallons

The area of the pool would be 1440 cubic feet. There are 7.4805 gallons per cubic foot. Doing the math, there would be 10771.92 gallons of water in your 15 X 24 X 4 foot swimming pool.

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A 12-ft round pool with depth of 2 ft has a capacity of 1,692.2 gallons of water.