Answer:
25695.52 Gallons (filled to top, about 20,100 gallons filled to 5 foot)
Math:
Volume of a cylinder = radius2 X Pi X height
In the case of your pool, Radius = half of 27 = 13.5, height = 6 and Pi is about 3.1415
Volume = 13.5 X 13.5 X 3.1415 x 6 = 3435.23 cubic feet
1 cubic foot = 7.48 gal
3435.23 X 7.48 = 25695.52 Gallons
The pool holds 7,600 gallons of water
598 Imperial gallons, approx.
To give you an idea, a 36-foot by 18-foot by 5-foot deep pool takes about 24,000 gallons of water to fill.
Exactly 5264.1669 gallons
Twelve feet of water in a 10-foot round pool is approximately 7,080 gallons.
3961
Depends on the depth of the water. If you go to four feet deep the total would be about 13,594 gallons.
An 18-foot round pool with 3 feet of water contains 5,734.8 gallons of water. If you fill it to 4 feet deep it increases to 7,646 gallons of water.
That all depends on how deep the water has to be, which the question neglects to specify.
Roughly 81,120 gallons
(3.5 feet) * PI * ((9 feet)^2) = 6 662.46122 US gallons
10,800