This web site has a calculator to determine how many cu yards and tons one needs of limestone "traffic bond". http://www.rwmillerandsons.com/prod04.htm
Using that calculator (and changing numbers until I got 1 ton) the calculator says I would need .66 cu yards.
It depends on how deep it is.
5 cubic feet
0.619 cubic yards.
1 cubic meter is 1.308 cubic yards.
440,740.741 cubic yards.
There are approximately 1.30795 cubic yards in a cubic meter.
That is approximately 16.741 cubic yards
11 cubic yards
30,000 (cubic yards) = 22,936.6457 cubic meters
17.8 cubic yards in 480 cubic feet.
2,511 cubic feet = 93 cubic yards.
837 cubic feet = 31 cubic yards.