Use formula for volume of cylinder, V=pi x radius squared x depth. Where Pi=3.14, radius= 13.5 feet,and depth= 4 feet. The answer will be in cubic feet. I calculate it to be 2299.06 cubic feet but I'm half asleep. Use various conversion factors to get other volume measures.
For a round above ground pool, the calculation is:
Diameter x Diameter x Depth X 5.9 = Number of Gallons
Please note that the depth is the ACTUAL water depth NOT the height of the pool wall (the water is usually around 6 inchs lower than the wall height).
For your example:
For a 27-foot round pool with a actual water depth of 3.5 ft: 27x27x3.5x5.9 = 15,054 or around 15,000 gallons.
Hope this helps ...
How deep is the pool. It matters.
About 4,490 gallons of water.
About 2,794 gallons of water.
It holds up to 10,408 gallons of water.
About 5,730 gallons.
About 7,645 gallons.
to calculate the content of the pool go to this link
Approx 3437 Imperial gallons.
Approximatly 7647 gallons of water, according to my pool records.