Assume the "3 inch" is the pipe's inside diameter.
Capacity = (pi x R2 x L) = (pi x 1.52 x 120) cubic inches.
1 gallon = 231 cubic inches.
Gallons capacity = (pi x 2.25 x 120 / 231) = 3.672 gallons (rounded)
That's the capacity of the pipe. We have no way of knowing how much water is in it.
We only know that it's no more than 3.672 gallons.
12.2 US gallons.
This pipe will hold 1,468.8 gallons of water.
12.5
8,258.494 gallons.
That completely depends on the length of the pipe.
The volume of a cylinder is (pi ) R2 L.R = 1/2 diameter = 15 inchesL = 25 feet = 300 inches1 gallon = 231 cubic inchesVolume in gallons = (pi) R2 L / 231 = 917.998gallons (rounded)
A 72-inch pipe 16 feet long holds up to 3,384.1 US gallons of water.
14.7 gallons of water.
111 gallons of water.
12,239.9 gallons of water per 3,000 feet.
5.5 gallons per 15 feet of 3-inch pipe.
1.6 gallons of water.
Up to 1,795.2 gallons of water.
6.5 US gallons of water.
65.3 gallons or 8.7 cubic feet.
40.8 gallons of water per 10 feet of length.
This pipe will hold 1,468.8 gallons of water.
45.9 US gallons.