Cannot be answered with only these measurements. For a rectangular pool, the length, width and depth are needed. For a round pool, the diameter and depth are needed.
A round pool that is 12 feet across and three feet deep holds a maximum of 2,535.8 gallons.
about 7,600 Gallons
2,500 gallons.
4500 US Gallons
A 12' x 24' x 52' pool can hold up to about 112,028 gallons of water.
This pool can hold up to about 2,538 gallons of water.
About 2,550 gallons.
3,231.5844
A 12-foot round pool with 33-inches of water contains 2,336.4 gallons of water.
This pool can hold up to 1,689.7 gallons of water.
1690 gallons
Depends how deep it is. It is actually 3 ft deep. thus the question 12 foot by 3 foot. However, it will hold approximately 2,100 gallons or 10,000 litres of water
Three feet of water in a 12-foot round pool is about 2,550 gallons.
A 12-foot wide round pool with 3.3 feet of water contains 2,803.7 gallons of water.