OUTDOOR PROJECTS
Mulch Calculator
Estimate mulch volume, purchase quantities, and material costs from your area and depth.
Preparing your calculator…
How this calculator works
Volume in cubic feet = square footage × depth in inches ÷ 12. Divide by 27 for cubic yards, then apply the selected waste percentage. Whole bags are rounded up using the selected bag volume; bag and bulk costs use their respective quantities.
Use current quotes, local rates, and measured dimensions to make this estimate useful for your situation.
Frequently asked questions
How many cubic yards of mulch do I need?+
Multiply area in square feet by depth in inches, then divide by 324. Include an allowance for losses if needed.
Should I buy bags or bulk?+
Compare both displayed costs and add delivery or transport charges. One cubic yard is 27 cubic feet, or 13.5 two-cubic-foot bags before rounding.