Approximately 4,400 gallons.
If 20' is the circumference, then the answer is 833.4 gallons.
It is 30.6 cubic feet = 190.3 Imperial gallons.
A round swimming pool 12 feet across by 4 feet deep will hold 452 ft3 which converts to 3,381 gallons
'bout 1500 to 2000
There is NO way to calculate this without knowing how deep the pool is filled!
It depends. How deep is the pool?
About 28,913 gallons of water.
13,594 US gallons of water.
The volume of the pool is 1385.45 cu ft for a maximum capacity of 10,364.5 gallons of water.
About 755 gallons of water.
489.76 gallons of water.
A 15-foot round pool with 52 inches of water is holding about 5,750 gallons. If the water is only 48" deep, the pool would be holding around 5,310 gallons.
A round, 16' diameter 4' deep pool has a capacity of about 6,016 gallons of water.
Use this formula: Diameter x Diameter x Average Depth x 5.9 = Total Gallons
4,531 US gallons.