21 inches of water in a round pool that is 27 feet 3 inches across is about 7,667 gallons.
A P R 2376 gallons
A pool that is 15 feet x 30 feet with the average depth of 6 feet is approximately 25,000 gallons.
28,913 US gallons.
About 6,691 US gallons.
Depends on the shape of the pool.
If you fill it with 4 feet of water (48 inches), the pool will contain about 5,310 gallons of water.
8249 US gallons, approx.
Go to http://www.havuz.org/pool-calculators.htm
192 inches (16 feet) of water in a 27-foot round pool is about 68,820 gallons.
Volume = pi*272*54/12 cubic feet = 19,274 US gallons, approx.
If this is a round pool that is 27 feet across by 52 inches tall and you fill it with 4 feet (48 inches) of water, the total volume would be 17,204 gallons of water.