Mulch Calculator
Use this free mulch calculator to determine exactly how much mulch to buy for your garden beds and landscaping. Enter your area dimensions and desired depth to get results in cubic yards and bag counts.
How to Use This Calculator
- 1
Measure your area
Enter the length and width of the area you want to mulch.
- 2
Choose depth
Select 2–3 inches for beds or 3–4 inches for weed control.
- 3
Select mulch type
Choose hardwood, cedar, rubber, or pine bark mulch.
- 4
Get your estimate
See cubic yards, bag counts, and cost estimates for bulk and bagged mulch.
Frequently Asked Questions
Measure the length and width of your beds in feet, then choose your desired depth (2–4 inches). Our calculator converts this to cubic yards for bulk delivery or the number of standard 2 cu ft bags you need.
2–3 inches is ideal for most garden beds. Use 3–4 inches for weed suppression in areas without plants. Avoid piling mulch deeper than 4 inches as it can suffocate plant roots and trap excess moisture.
Bulk mulch delivered by the cubic yard is almost always cheaper than bagged — often 50% less per unit volume. Bagged mulch is more convenient for small jobs under 2 cubic yards.
Organic mulch (hardwood, cedar, pine) should be refreshed annually and fully replaced every 2–3 years. Rubber mulch lasts 10+ years without replacement.