3.9
Assuming that 18 inches refers to the diameter, it will hold 55036 Imperial gallons.
In a pipe with diameter 8 ft, there will be just over 376 US gallons per foot.
There need not be any water in the pipe! The volume of the pipe is 1044 Imperial gallons
U tell me
10.4448, assuming 16" inside diameter. 16" outside diameter would be slightly less.
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A 12 inch diameter round pipe will hold 4.89 UK gallons or 5.88 US gallons per foot.
Over 9,000.
A three-inch diameter pipe one foot long holds 0.367 gallon.
15.29 Gals
The volume is 31.809 cubic feet.
A 4-ft diameter pipe holds approx 78.3 US gallons.
Assuming that 18 inches refers to the diameter, it will hold 55036 Imperial gallons.
This pipe will hold 706.9 cubic meters of water or 186,700 US gallons.
A four-foot diameter pipe that is five feet long has a volume of 470 gallons.
This pipe will hold 23,500.7 gallons of water.
For a 3 foot diameter pipe, 52.9 US gallons per foot of length.