You need three dimensions to get a volume. 12 feet x 30 inches is an area.
If you have a round pool you have only diameter and height!
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There are about 67.3 US gallons in that volume.
The volume is 36*68*31 = 75,888 cubic inches = 75,888 / (12*12*12) = 43.91667 cubic feet.
There are 12 inches in a foot, 12 inches X 12 feet = 144 inches.There are 12 inches in a foot, 12 inches X 12 feet = 144 inches.There are 12 inches in a foot, 12 inches X 12 feet = 144 inches.There are 12 inches in a foot, 12 inches X 12 feet = 144 inches.There are 12 inches in a foot, 12 inches X 12 feet = 144 inches.There are 12 inches in a foot, 12 inches X 12 feet = 144 inches.
Convert everything to feet, then use the formula for the volume of a cylinder. Since the answer will be in cubic feet, you'll then have to convert it to gallons.
A pipe that is 30 inches in diameter and 12 feet long has a volume of: 440.6 US gallons of water.
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Volume: 30*15*12 = 5,400 cubic feet
A 100-foot pipe with an inside diameter of 12 inches has a maximum volume of about 78.54 gallons of water.
A hole 40 inches deep by 12 inches wide has a volume of: 2.62 cubic feet.
There are about 67.3 US gallons in that volume.
12
The volume is 36*68*31 = 75,888 cubic inches = 75,888 / (12*12*12) = 43.91667 cubic feet.
There are 12 inches in a foot, 12 inches X 12 feet = 144 inches.There are 12 inches in a foot, 12 inches X 12 feet = 144 inches.There are 12 inches in a foot, 12 inches X 12 feet = 144 inches.There are 12 inches in a foot, 12 inches X 12 feet = 144 inches.There are 12 inches in a foot, 12 inches X 12 feet = 144 inches.There are 12 inches in a foot, 12 inches X 12 feet = 144 inches.
Convert everything to feet, then use the formula for the volume of a cylinder. Since the answer will be in cubic feet, you'll then have to convert it to gallons.
If a volume is measured in cubic feet but the answer is required in cubic inches then a conversion process is needed. 1 foot = 12 inches 1 sq ft = 12 x 12 = 144 sq inches 1 cu ft = 12 x 12 x 12 = 1728 cu inches. So, to convert cubic feet to cubic inches, multiply the answer by 1728. Conversely, to convert cubic inches to cubic feet, divide the answer by 1728.
A box that measures 1 foot by 1 foot by 1 foot has a volume of 1 cubic foot.The same box measures 12 inches by 12 inches by 12 inches. So, its volume in cubic inches is 12 X 12 X 12 = 1728.