The volume is 3,848 cubic inches per linear inch of 70-inch diameter pipe. In terms of liquid volume, this pipe would contain 16.66 gallons of liquid per linear inch.
The volume of water in a 4-inch diameter, 1-foot section of pipe is 0.6528 gallons of water.
Approx 21.2 cubic inches.
A pipe with an inside diameter of 2 inches has 37.7 cubic inches (rounded) of interior volume per foot. That means about 6feet 1.5inches per gallon.
A 100-foot pipe with an inside diameter of 12 inches has a maximum volume of about 78.54 gallons of water.
Assuming that 0.75 inch refers to the diameter, the volume is pi*(0.75/2)2*12 = 5.3 cubic inches, approx.
I'm assuming that "4 inch" is the inside diameter of your pipe.Then its volume is roughly-- 0.6528 gallon per foot-- 1.9584 gallon per yard-- 3.264 gallons per 5 feet.etc.
The pipe's volume is the product of its cross-sectional area and its length. The area of a circle is pi*(radius)^2, so in this case pi*9sq.in. or about 28.3 square inches. Multiply this area by the length of pipe you are using to obtain a volume. A 10 foot length of 6 inch pipe will have 3393 cubic inches of volume or 1.96 cubic feet, or 14.7 US Gallons.
.25 per inch per foot
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.
Pipe Diameter = 3 Inches = .25 Ft Area of Circle = Pi X D X D / 4 - where D is Diameter and Pi is 3.14159 Volume of Pipe = Length X Area = or= 1 Foot X Area Volume = [1 Ft] X [ Pi X .25 X .25 ] / 4 Volume = 0.049087 Ft3 If the 3-inch Pipe flows at 1 Foot per second, then it will carry 0.049087 Cubic Feet per second.
Depends on the diameter of the pipe and the speed at which the water travels through it.
Increase pitch or increade piping diameter