An area with these dimensions has a volume of 3.03 cubic yards.
In order to answer the question it is necessary to know the area of the circle, not just the depth. This can be in the form of the radius, diameter or circumference of the circle.
1,000,000 cubic yards.
Three acres three inches deep is 403.33 cubic yards.
3,495.6 cubic yards.
13.1 cubic yards, approx.
1.851852 cubic yards
It takes 5.0926 cubic yards or 137.5 cubic feet.
5.6 acres*3.5ft = 27104 sq yards*1.166... yards = 31621.33... cubic yards.
You would need approximately 2.5 cubic yards of gravel to cover a 12' by 15' area at a depth of 2 inches.
162 cubic feet.
You will need 0.56 cubic yards of concrete.
40.1 cubic yards
3,456 cubic yd.