How many gallons of water in a 4 inch pipe 100 feet long?

Answer 1

The answer is pretty straight forward. You need to calculate the area of the pipe and multiply it by the length of the pipe to determine the pipe's volume. The area can be found by multiplying Pi (3.14) times the radius squared (1/2 of 1.25, or .625 times .625 = .39). Now multiply the length 100' (or 1200 inches to keep common units) to find volume. 3.14 X .39 X 1200 = 1469.5 cubic inches. Now, all you need to do is to convert cubic inches to gallons. There are 231 cubic inches in a gallon, so divide 1469.5 by 231 and you get 6.36 gallons of water in your pipe.

Answer 2

1 foot = 12 inches

area of a cylinder= pi x radius^2 x height

area of this pipe = pi x (1/2 inch)^2 x 1200 inches

this gives an answer in cubic inches.

Then take that and divide your answer by 231 (cubic inches in 1 US Gallon of water)

so, (3.14 x .5^2 x 1200)/231 ~ 4.078 Gallons

Answer 3

If the pipe is standard and is 100 feet long, it contains just under 4.5 American gallons. A standard 1 inch steel pipe has an actual inner diameter of 1.05 inches. To determine the volume of the pipe, take the radius of .525 (half the diameter), square it (.275625) and multiply by pi (3.141592), and then by the length of the pipe in inches (12 times 100); the result is 1039.08 cubic inches. Divide by 231 cubic inches per gallon to get 4.4981 gallons.

Answer 4

A 4-inch pipe 100 feet long can hold up to 65.3 US gallons of water.

Answer 5

2.3 gallons of water.