Total Area in square feet (see below for area calculations)
Desired Thickness of Topsoil or Mulch in Inches
calculate
Total Cubic Yards Needed:

Area Calculations: Draw your site as accurately as possible – graph paper works well. For odd or complex shapes, divide the area into combinations of rectangles, triangles, and/or circles. Use the following formulas to determine area:

Rectangle: Area = length x width

Circle: Area = 3.1416 x the square of the radius

Triangle: Area = 1/2 x length of base x length of height