how many yards of fill dirt do i need
Calculate the volume of dirt needed to fill the area you measured by multiplying length (120 inches) by width (60 inches) by depth (30 inches). Total volume equals 216,000 cubic inches. Convert cubic inches to cubic yards by dividing by 46,656 cubic inches. So, 216,000 cubic inches divided by 46,656 cubic inches equals 4.63 cubic yards. To fill the rectangular area at a depth of 2 feet 6 inches, you will 4.63 cubic yards of fill dirt.