Here’s your mulch calculator, or simply imagine a 10 foot by 10 foot square box. Plug that box around your yard, count the number of boxes and that’s approximately how many yards you will need.
If you don’t know how to calculate the Total Area in square feet, all you have to do is draw your site on a piece of graph paper, using one square to represent each foot. If your site contains portions that are not square, divide the area into combinations of rectangles, triangles, and/or circles. Use the following formulas, and then add together all areas. Use this value in the Total Area box above.
- 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