HOW IT WORKS
The calculation
Length × width gives area. Multiply by depth in feet for cubic feet, divide by 27 for cubic yards, then apply waste.
Landscaping
Mulch Calculator
Estimate mulch in cubic feet and cubic yards from the bed dimensions and planned depth. Depth recommendations vary by material and use.
Keep in mind
Depth needs vary with material and intended use. Follow local horticultural guidance and keep mulch clear of plant stems and trunks.
COMMON QUESTIONS
About mulch estimates
What mulch depth should I use?
The appropriate depth depends on mulch type, plants, and the purpose of the layer. Follow local horticultural guidance and avoid piling mulch against stems or trunks.
How many bags are in a cubic yard?
Bag volumes vary. Divide the required cubic feet by the volume printed on the bag to estimate the number of bags, rounding up.
Want to understand the assumptions? Read the mulch estimating guide →