Mulch & Topsoil Calculator — Free Online Calculator & Formula Guide
Calculate cubic yards of mulch, topsoil, compost, gravel, or sand needed for any landscaping project. Shows bulk yards and equivalent bagged quantities.
✓ Formula verified: May 2026
Mulch Calculator
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Mulch — Cubic Yards
3.06 cu yd
Cubic Feet
82.5 cu ft
2 Cu Ft Bags (if bagged)
42 bags
Coverage Area
300 sq ft
What if your area length changes? 27 ft → 2.75 cu yd · 30 ft → 3.06 cu yd · 33 ft → 3.36 cu yd
Scenario Comparison
Conservative (5%)
$16,470.09
$6,470.09 interest
Your scenario (7%)
$20,096.61
$10,096.61 interest
Aggressive (10%)
$27,070.41
$17,070.41 interest
High-risk (14%)
$40,224.71
$30,224.71 interest
Best return
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Material Volume
Cubic Yards
3.06 cu yd
Cubic Feet
82.5 ft
2 cu ft Bags
42.0 bags
Area300 sq ft
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