The volume of a cylinder is [ (pi) x (radius)2 x (length) ].
V = (pi) x (0.25 inch)2 (360 inches) = 70.686 cubic inches = 0.306 gallon
That's the volume of the pipe. We have no way to know how much water
is in it. It could even be empty.
Approximately 977,553 gallons of water.
About 4,490 gallons of water.
About 2,794 gallons of water.
half a pint
First, determine the number of cubic feet. Pipe is 4 feet in diameter- so radius is half that- 2 feet. Area is pi (3.14) times radius squared. 2x2=4, x 3.14 = 12.56 SQUARE feet of area. Multiply that by the length in feet- 5,280, and you get a VOLUME of 66,316.8 CUBIC feet. one cubic foot holds 7.48 gallons- so your pipe can hold 496,084.115 gallons of water- almost a half million gallons.
3.5 cubic feet = about 26.18 US liquid gallons or 22.5 US dry gallons.
It depends on the depth of the water. Assuming the water in one inch deep, there would be about 13,577 gallons of water in the half acre.
15228.5 US gallons 12680.4 Imperial gallons when it is filled to 4 and a half feet.
There are approx thirty and a half centimetres to a foot.
Inches Feet Fluid Ounces Quarts Half-Gallons Gallons Miles Yards
An acre is 43,560 sq ft, so half an acre is 21,780 sq ft. Th edepth is 16 feet so volume is 16 x 21780 = 348,480 cu ft. Ther is 7.48 gallons in a cu ft so 7.48 x 348,480 = 2,606,630 gallons
About 326 and a half imperial gallons, which would be around 436 US gallons.