If the pool is rectangular and 4 feet deep then around 19,000 US gal
4270 gallons. (3.23 ft x 1/12 in/ft x pi x 7.5ft x 7.5 ft = 570.8 cu. ft or 4270 g)
3697 Gallons @ 80% of wall height
About 2,550 gallons.
956 gallons.
5,677 gallons
6247.5 gallons I think!!
If filled to the top, there would be approx. 7400 gallons of water in your pool.
20 ft round diameter is 10 ft in radius. Volume = pi x radiuis squared x height (in feet) 3.1592654 x 10 x 10 x 42/12 = 1105.74 cubic feet. 7.48 gallons per cubic ft gives 8,271.53 gallons for 42" depth.
17,820 gallons. More pool questions answered at bridgecitypools.com
approximately 4,440 gallons.
11,600
359 gallons for every inch the water is deep.