How many gallons in a pipe?

Answer 1

First find the area of round part of the pipe. That's pi x d x d / 4.

So 3.14 * 4 * 4 / 4 = 12.56 square feet.

Then multiply by the length to get volume.

12.56 sq ft x 13 ft = 163.26 cubic feet.

There are 7.48 gallons in a cubic foot so,

Volume of your pipe is 7.48 * 163.28 = 1,221.33 gallons.

Answer 2

All depends on how big across the pipe is, and how long it is.

Like ... a lot more of them in a 6-foot piece of 4-inch pipe

than there are in a soda straw.