Three acres three inches deep is 403.33 cubic yards.
1 acre = 4840 square yards, so 1 acre 20 yards deep = 4840*20 = 96,800 cubic yards.
806.66 Cubic Yards
4840 x 1/6 = 806.67
43,560 sq. ft. (1 acre) * 1 ft. deep /27 cubic ft. (1 cubic yd) = 1613.333 cubic yds.
0.92592592 cubic yards.
25 feet by 13 feet by 4 inches deep = 4.01 cubic yards
62/3 cubic yards for every 1-foot deep. 5 cubic yards for every 9-inches deep. 31/3 cubic yards for every 6-inches deep. 5/9 cubic yard for every 1-inch deep.
6 inches = 1/6 yards. So 70 sq yards * 6 inches = 70*1/6 cubic yards = 11.66... cubic yards.
If it is 4 inches deep/thick, 2 cubic yards. If it is 6 inches deep/thick, 3 cubic yards.
31/3 cubic yards.
24 cubic feet = 0.89 cubic yards