Simply enter the values (numbers
only) and press the CALCULATE button

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
To determine topsoil requirements for areas of
varying grade, use a transit to indicate exact fill requirements...or
estimate an average fill depth. 