mine is the same size as long as its 3 feet deep to 8 feet deep then the exactly 26730 gallons i figured that out today because we over shocked our pool by 4 times
Assuming you are referring to an 18 foot by 3 foot (36 inches) circular pool, the formula would be PIE x radius x radius x depth = cubic feet, then cubic feet x gallons per cubic foot. So here is the answer.... 3.14 x 9 x 9 x 3 = 763.02 cubic feet, then 763.02 x 7.48 (gallons per cubic foot), = 5707.39 gallons.
Diameter = total length across
Radius = half of diameter
Cubic foot = 1' x 1' x 1'
7.48 = gallons per cubic foot
That all depends on the depth, and if it is deeper on one end. Sorry, you need more information to answer this correctly.
Do the math yourself when you find out how deep it is, start off with 18 * 36 * x ("x" being the depth.)
If the pool were to be 5ft deep throughout the whole pool exactly it would be 3240 Square feet of water. As for gallons, You would need to convert that number.
There is not enough information. What is the height of the pool? The pool area is 648 square feet.
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.
It holds 702 cubic feet.
Diameter x Diamater X Depth X 5.2
To fill a round pool that is 18 feet in diameter and 5 feet deep, you would need approximately 14 cubic yards of earth.
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.
3.35 feet 18 x 18 x 3.35 x 5.9 = 6403 gallons
1,902 gallons 15,877 pounds Correct answer: 5700 gal. 18'x18'x5.9x3' check backyardpools.com
4ft. by 18 ft.
10800
10000
About 7,600 gallons