There are different formulae depending on whether the shape is a sphere, a cylinder or something else.
The volume in cubic feet of a cylinder with a diameter of 2 feet and a height of 6 feet is 18.85 cubic feet.
The volume in cubic feet of a cylinder a diameter of 1.9166 feet and height of 2.6666 feet is: 7.6933 cubic feet.
Use the formula for a cylinder to calculate the volume. This volume will be in cubic feet; you can then convert that to gallons.
There are 1.77 cubic feet of volume per foot of length at 1.5' in diameter.
1,845.63 cubic feet.
A 14-inch diameter by 20 foot long pipe has a volume of: 21.38 cubic feet.
35 cubic feet
6,084*pi cubic feet or about 21,364.56 cubic feet.
1,000.6 cubic feet of volume.
The diameter would be 7.816 feet.
The volume of a cylinder with a 2 diameter that is 12 feet long is 37.7 cubic feet.
A 4-inch diameter pipe that is 3,000 feet long has a volume of: 261.8 cubic feet.