There is none. Because there is a hole! If you are asking how much dirt can fill the hole, then your answer is 27 cubic feet.
Depends on how deep you want to fill it...
It requires 73 gallons of water to fill a 6 inch x 50 foot hose
1 foot by 36 sq feet = 36 cubic feet of dirt is needed
if you mean a 30 foot diameter circle, then pi x 152 x 3 = 2119.5 cubic feet of dirt
a lot of dirt.
There's no dirt in a hole.
12 inch =1 foot
Approx 10.3 US gallons.
Since it is a hole, it doesn't have any dirt. But it has the capacity to hold 1 cubic inch.
300 cubic feet of dirt