8"18" oversized rock 1: ... #1 Crushed limestone 1: cubic yard = 1 1/2 tons #2 Crusher run limestone 1:21 cubic yard = 2 tons . Gravel; Top Soil; Crushed Aggregates; Map; Calculator; Contact Us; A cubic yard is equal to 27 cubic feet. You can use the online calculator to determine how many cubic yards of material are required ...