Mulch Calculator
Calculate cubic yards, cubic feet, and bags of mulch needed for any garden shape. Add multiple beds, choose a mulch type, and get a cost estimate instantly.
1.85
Cubic Yards
25
Bags (2 cu ft)
$113
Est. Cost
Rectangle / Square Bed
For straight-edged garden beds, planting strips, or paths.
Quick Depth Presets
Cost & Bag Settings
Cubic Yards
1.85
cubic yards
20×10 ft × 3"
Cubic Feet
50.00 ft³
Bags Needed
25 bags
1.852 yd³
Cubic Yards
50.00 ft³
Cubic Feet
25 × 2ft³
Bags
$112.50
Cost (Bags)
Volume Visual
20×10 ft
3" depth
Mulch Estimate
200.0 ft²
Area
3"
Depth
50.000
Volume (ft³)
1.8519
Volume (yd³)
25 bags
Bags (2ft³)
$112.50
Bag Cost
$64.81
Bulk Cost
$47.69
Savings (Bulk)
1×(20×10 ft)
Beds
Bags vs Bulk Cost Comparison
Bagged (25 × $4.50)
$112.50
2.25/ft³
Bulk (1.85 yd³ @ $35.00)
$64.81
1.30/ft³
✓ Bulk saves $47.69 (42% cheaper)
Reference: 1 cubic yard ≈ 13.5 bags of 2 cu ft mulch.
How to Calculate Mulch Needed
To find mulch volume, calculate the area of your garden bed, multiply by the depth in feet, then convert to cubic yards (divide by 27). A standard recommendation is 2-4 inches of mulch for most garden beds.
🧮 Key Formulas
Volume (ft³) = Area (ft²) × Depth (ft) [depth in inches ÷ 12]
Volume (yd³) = Volume (ft³) ÷ 27
Bags needed = Volume (ft³) ÷ bag size (ft³)
Circle/Ring: Area = π × (outer_r² − inner_r²)
1 cubic yard = 27 cubic feet
1 cubic yard bulk ≈ 13.5 bags of 2 cu ft
Recommended depth: 2-3 in maintenance, 3-4 in new beds
— FAQ