How many gallons of water does it take to fill a round 24 ft pool that is 4 feet deep?

Answer 1

Approximately 13-14,000 gallons

• Volume of cylinder = 3.1415 * r * r * h
• Radius (r) = 1/2 * Diameter.
• 24 ft pool has a radius of 12 ft,
• Volume of pool = 3.1415 * 12 * 12 * 4 = 1809.504 cubic feet
• Each cubic foot contains 7.48052 gallons
• So, 1809.504 cubic feet * 7.48052 gallons/cubic foot = 13,544 gallons

In general, for any circular pool, the number of gallons is...
(Diameter/2) * (Diameter/2) * Height * 23.5
where Diameter and height are expressed in feet