A 100-foot pipe with a 6-inch diameter has a volume of: 19.63 cubic feet.
0.888
This pipe can hold up to 0.5 cubic foot or 3.7 gallons of water.
A 14-inch diameter by 20 foot long pipe has a volume of: 21.38 cubic feet.
pi*12*12*1760*3 = 2,388,615.726 cubic feet.
Volume = pi1210 = 31.416 cubic feet rounded to 3 decimal places
The volume is 0.7854 cubic feet.
Let's calculate cubic feet first, then convert to gallons. Volume=pir2h=3.14159x0.252x3=0.59 cubic feet 0.59 cubic feetx7.48 gallons/cubic foot=4.4 gallons
pi/2
Pipe is generally cylindrical and the dimension refers to the inside diameter. One cubic foot contains 7.48 gallons. The volume of a one foot long 20" diameter pipe is: pi(1.667/2)^2 = 2.18 cubic feet. At 7.48 gallons per cubic foot the total volume is 16.3 gallons.
Answering "How many Cubic feet are in a 5.5 inch pipe inside 50 feet long?"
The volume of a 5,000-foot long pipe with a 6-inch diameter is: 981.75 cubic feet.