That depends on what depth you want to fill the pool to !
4hr.
1 gallons = 4 quarts ⇒ 12 quarts = 12 ÷ 4 gallons = 3 gallons
12 gallons exactly.
12 quarts = 12/4 gallons = 3 gallons
Three feet of water in a 12-foot round pool is about 2,550 gallons.
3371 Gallons
Your pool has a volume of 452.4 cu ft and maximum capacity of 3,384.3 gallons.
12 x 12 x 3 x 5.9 = 2548 gallons
12 x 24 x 4 = 1,152 cubic feet1,152 cubic feet = 8,617.55841 US gallons
What are your depths in the deep and shallow end and what shape is the pool? Rectangular, kidney, oval or irregular?
2,500 gallons.
Go to http://www.havuz.org/pool-calculators.htm
4500 US Gallons
A 12' x 24' x 52' pool can hold up to about 112,028 gallons of water.
There are about 7.481 gallons per cubic foot. So if your 12 foot by 8 foot pool is filled 4 feet deep you will need 12 x 8 x 4 x 7.481 = 2,873 gallons of water.
To fill up a 12 foot swimming pool, you would need approximately 6,900 gallons of water.