How many gallons is a 21 ft round pool
Formula for pool volume (cylinder)
sort of, a round pool can be considered a cylinder. sort of, the formula for the volume of cylinder is: π radius² height. — more or less
Assuming a standard pool depth, we need to know the average depth of the pool. — I mean
Let's assume an average depth of 5 feet.
Enter the diameter and depth of your round pool to efficiently determine the number of gallons it can hold. This calculation is crucial for maintaining the right chemical balance and ensuring proper water circulation. In order to figure out proper doses of chemicals for your pool, you need to accurately determine how many gallons of water it holds. To do that, you need to know four different numbers: the length, width, average depth, and a multiplier for your type of pool.
Converting to gallons
by the way, now we need to convert cubic feet to gallons. There are approximately 7.48 gallons per cubic foot.
Gallons ≈ 1731 cubic feet 7.48 gallons/cubic foot ≈ 12,960 gallons
Therefore, a 21-foot round pool with an average depth of 5 feet is approximately 12,960 gallons.
Understanding pool volume
Determining the volume of a round pool, expressed in gallons, is crucial for tasks like estimating water needs, calculating the right pump size, and understanding its capacity.