1 cubic yard = 27 cubic feet
1 cubic foot = 1,728 cubic inches
1 gallon = 231 cubic inches
(0.5 cubic yard) x (27 cu-ft/cu-yd) x (1,728 cu-in/cu-ft) / (231 cu-in/gal) = 100.987 gallons (rounded)
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One acre is equivalent to 43,560 square feet. If it rains half an inch on this area, it would be 1,089 cubic feet of water. Given that 1 cubic foot is about 7.48 gallons, the total amount of water produced would be approximately 8,148 gallons.
To calculate the volume of water in the column, use the formula for the volume of a cylinder: pi * radius^2 * height. Convert the measurements: the radius is half of the diameter (6 inches), so 3 inches, convert height to feet (400 feet), and convert the result to gallons (1 cubic foot = 7.48 gallons).
Do you mean a fixed length of 5 inch pipe or are you asking to the amount of laminar flow through a 5 inch pipe? There is not enough info here to answer. Need length of pipe and what you are asking.
You can use the volumetric equations. To break them down simply: Volume = Width * Height * Depth Width * Height = Area Area of a circle = Pi * radius2 Okay, so now that we have remembered the formulas, we can plug in the numbers: Radius = 15/2 or 7.5 feet so Area = 3.14159265 (Pi) * 7.52 which equals 176.715 sqare feet Now, Volume = Area * Depth, so 176.7145868 (the area) * 4 = 706.858347 cubic feet. 1 gallon = 0.13368 cubic feet, so take 706.858347/0.13368 to get the answer: A 15 foot round above ground swimming pool that is 4 feet deep will hold 5,287.6676 gallons of water.
There are 8 pints in one gallon so 36 pints equals 36/8 gallons, which is 4.5 (four and a half) gallons.