cylinder 18 feet diameter x 1.5 feet deep volume = 381 cubic feet
1 foot by 36 sq feet = 36 cubic feet of dirt is needed
You are mixing volume (square yard) and area (length x width). How deep do you want the dirt? One foot deep you need about 80 square yards of dirt.
There is NO dirt, it is a hole! If you want to fill it with dirt, that is 4x6x12=288 cubic feet, weighing about 28,800 pounds
6,400 ft3
36 cubic feet of dirt=)
cylinder 18 feet diameter x 1.5 feet deep volume = 381 cubic feet
1 foot by 36 sq feet = 36 cubic feet of dirt is needed
8.333 cubic feet
if you mean a 30 foot diameter circle, then pi x 152 x 3 = 2119.5 cubic feet of dirt
You are mixing volume (square yard) and area (length x width). How deep do you want the dirt? One foot deep you need about 80 square yards of dirt.
about 5 min. if it's only 1" deep, depending on water pressure.
There is NO dirt, it is a hole! If you want to fill it with dirt, that is 4x6x12=288 cubic feet, weighing about 28,800 pounds
39,600 cubic feet. 1,466 cubic yards or about 122 truckloads if it were non-compacted fill.
There is no dirt in a hole because a hole is defined by the absence of material, in this case dirt. If you were to fill the hole with dirt, it would require 24 cubic feet of dirt to completely fill it.
6,400 ft3
To fill a hole 2 feet long, 4 feet wide, and 6 feet deep would take 48 (2 x 4 x 6) cubic feet of dirt.