1 cubic yard = 27 cubic ft. 1 cubic ft = 7.5 gallons (water) (7.5 x 27 = 202.5 gal / cy)
202.5gal / 5 = 40.5 (5 gal buckets = 1 cubic yard)
202.5gal / 5 = 40.5 (5 gal buckets = 1 cubic yard)