Mulch Calculator

Calculate how much mulch -- soil cover made of organic material -- you'll need.

Area to be covered sq. ft. Depth of coverage



Number of 3-cubic-foot bags of mulch needed 3-cubic foot bags     Number of 2-cubic-foot bags of mulch needed 2-cubic foot bags

Please note: For your convenience, this calculation has been rounded up slightly.

Important reminder: Every effort has been made to ensure the accuracy of this calculation. But before purchasing materials for any project, please check amounts with your suppliers or contractors.

Helpful Information

Lawn clippings, leaves and hay, for instance, all can be used as mulch. At a lawn center, you will find various types of commercially produced mulches, in bags that contain either 2 or 3 cubic feet of loose matter, such as cedar chips, cypress, or pine bark.

Tip: To ensure that weeds cannot grow in a flower bed, lay mulch 1 to 2 inches deep.


  1. I don't see one either. Quite disappointing. LindaAaron

    1. Please see new comment.

    2. I added the formula for you as I know and use it.

  2. I don't see a formula. This calculator is incomplete. :(

    1. Please see new comment.

  3. How to calculate how much mulch you will need
    Calculating Cubic Yards
    Measure the length and width of the area in feet. Multiply these figures together to find the area in square feet. ...
    Multiply your total area in feet by how deep you want your mulch in inches. ...
    Divide your answer by 324 (1 cubic yard of mulch will cover 324 square feet 1 inch deep). Then you can break it down into smaller areas as needed.

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