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How many gallons are in a 4 foot by 12 foot by 18 foot round swimming pool?
Multiply all the numbers to get the volume of the pool in cubic feet. Then divide by 7.5. That assumes the water is filled to a height of four feet. Some above-ground pools have 52" walls, which allow for a water height of 48", which is four feet. The dimensions stated above in the reworded question are for an oval pool, not a round one. I suspect the original question was for a round pool with an 18' diameter and a 4.5' wall. (The slash in 4 1/2 did not show up in the question.) If that is the case, then the answer is 3.14 times 81 times 4.5 divided by 7.5.
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A 12-ft round pool with depth of 2 ft has a capacity of 1,692.2 gallons of water.
7,646 US gallons.
Use this formula: Diameter x Diameter x Average Depth x 5.9 = Total Gallons
845 gallons I come up with aprox 2500 gal Pi x r(sq) x depth x 7.48
About 2,550 gallons.
About 7,646.4 gallons.
Impossible to answer without knowing how deep the pool is. When you know the depth (in feet), plug it into this equation: 18 x 18 x (depth) x 5.9 = # of gallons in the pool.
There are 13,536 gallons in a 24 foot diameter pool that has 4 feet of water. Not true for a pool that is 4 feet in height. This would hold less than 4 feet of wat…er.
A 12-foot round pool filled to a depth of three feet contains about 2,548 gallons of water.
WolframAlpha, a new search engine gives a UK gallon of water at 0.1337 cu.ft so your pool should take 6,462 gallon to fill, give or take a cupful. Check it out!
This question illustrates why the standard units of measure are silly. This problem would be much easier if you had metric measures. It would be so much easier that I am… tempted to convert to metric units, solve the problem, then convert back. However, I assume that you wanted to see the calculations done in the units you gave so here is my answer. Assumptions: by 12 foot round, I assume you mean that the diameter is 12 feet. Volume = area of base * height Volume = Pi * radius * radius * height Volume = 3.14 * 6 * 6 * 3 ft 3 Volume = 339 ft3 Now you need to know how many cubic feet are in a gallon. I don't know this and probably nobody else in the state of AK knows this, but you can look it up. 1 gallon = 0.1337 ft3 Number of gallons = Number of cubic feet / number of cubic feet per gallon Number of gallons = 2,536 gallons.
A round swimming pool 12 feet across by 4 feet deep will hold 452 ft3 which converts to 3,381 gallons
21 foot what? Radius, diameter or circimference? Presumably 4 feet deep?
If that is 4 feet tall and 18 inches in diameter, it would be 16.83 gallons.
28 is the diameter of the pool and 4 is the height (depth). 1 cubic foot is approx. 7.48 gallons. A round swimming pool is a cylinder. So: pi x (28/2)2 x 4 = 2463 cubic feet, …multiply by 7.48 = 18423.24 gallons
If 16 ft = diameter, and 4 ft = height V = pi x r2 x h = 803.84 cubic feet; 1 cubic foot = 7.5 gallons, so multiply by 7.5 = 6028.8 gallons