5.5
0.888
A 100-foot pipe with a 6-inch diameter has a volume of: 19.63 cubic feet.
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.
A 14-inch diameter by 20 foot long pipe has a volume of: 21.38 cubic feet.
Approx 21.2 cubic inches.
pi*12*12*1760*3 = 2,388,615.726 cubic feet.
Volume = pi1210 = 31.416 cubic feet rounded to 3 decimal places
A 1-foot length of a pipe with an 1-inch internal diameter will hold pi*r2*h cubic inches where r = 0.5, h = 12 So 9.42 cubic inches.
201.1 cubic inches for every inch long the piece of pipe is.
About 0.65 gallon per foot.
A 4-inch diameter pipe that is 3,000 feet long has a volume of: 261.8 cubic feet.
A 6-inch diameter pipe that is 16 feet long has a volume of: 3.14 cubic feet