Mulch Calculator
Calculate how much mulch you need for flower beds, gardens, tree rings, playgrounds, and other landscaping projects.
1. Choose Your Project Shape
2. Enter Mulch Depth
3. Add Extra Mulch
Your Mulch Estimate
You need approximately:
This estimate includes the waste and settling allowance you selected. Actual requirements can vary depending on mulch type, depth, moisture, and site conditions.
Helpful Mulch Project Supplies
Planning a mulching project? These supplies can make installation easier and help you get the finished result you're looking for.
How much mulch do I need?
To calculate the amount of mulch you need, the calculator determines the area you're covering and multiplies it by the desired depth. Because depth is normally measured in inches while length and width are measured in feet, the calculator converts the depth to feet before calculating the volume.
The result is shown in cubic yards, which is a common unit used when buying bulk mulch.
Adding a small allowance can help account for waste, uneven areas, and settling.
Buying Mulch: Bags vs. Bulk
Mulch is commonly sold in bags or by the cubic yard. Bag sizes can vary, so check the volume listed on the bag when determining how many bags you’ll need. Our calculator gives you the amount of mulch needed in cubic yards based on your project’s dimensions and desired depth.
For larger landscaping projects, buying mulch in bulk is often more convenient and economical. For smaller areas, bagged mulch can be easier to transport and spread.
Consider ordering a little extra to account for waste and areas that may require additional coverage.