How many gallons of water in a 21 foot by 4foot 6inches deep round pool?

Answer 1

A 21' pool that is 48" high should have 10,407 gallons of water (approx). To calculate the gallons in a round swimming pool use this formula: Length x length x average depth x 5.9 = gallons of pool So in your case 21 x 21 x 4 x 5.9 = 10,407 gallons

Answer 2

Assuming 21 feet is the diameter, the volume of your pool is pir2h 3.14159 x (10.5)2 x 4 3.14159 x 110.25 x 4 1385.4424 feet3 Now we must convert feet cubed to gallons. 1385.4424 cubic feet = 10,636.828 gallons. That will fill your pool!

Answer 3

Pi x r squared x depth x 7.481 (gallons per cubic foot) 3.14 x 10.5 x 10.5 x 4 x 7.481 = 10,359 gallons

Answer 4

The volume of the pool is 1385.45 cu ft for a maximum capacity of 10,364.5 gallons of water.

Answer 5

This pool can hold a maximum of 9,400 gallons of water.

Answer 6

10,408 gallons.

Answer 7

11,709 US gallons of water.

Answer 8

1.74 gallons