Mulch Calculator
mulch calculator. Get instant, accurate results. Enter values for instant results with step-by-step formulas.
Reviewed by Abdullah, Technical Content Specialist
Formula
Volume(yd³) = Length(ft) × Width(ft) × Depth(in) / 324
Calculate mulch needed for landscaping beds.
Worked Examples
Example 1: Garden bed
Problem:20ft × 10ft × 3\" deep
Solution:20×10×3/324 = 1.85 cu yd
Result:1.85 cubic yards
Frequently Asked Questions
How do I calculate mulch coverage?
Calculate area in square feet, multiply by desired depth in feet (typically 2-4 inches or 0.17-0.33 feet), then divide by 27 for cubic yards. A 200 square foot bed with 3 inches of mulch needs 200 * 0.25 / 27 = 1.85 cubic yards. One cubic yard covers about 108 square feet at 3 inches deep.
Reviewed by Abdullah, Technical Content Specialist · Editorial policy