Free OnlineCalculators & Converters
Mulch Calculator
Calculate cubic yards, cubic feet, and bags of mulch or topsoil for rectangular and circular garden beds.
mulch calculatorhow much mulch do i needtopsoil calculatorcubic yards mulchmulch bags calculator
Key Features — Mulch Calculator
Rectangular and circular shapes
Cubic yards, cubic feet, and bag counts
Imperial and metric units
2 cu ft and 3 cu ft bag options
Why Use This Tool — Mulch Calculator
Free Online Mulch calculatorHow much mulch do i need — for EveryoneFast & Easy Topsoil calculatorCubic yards mulch — 100% FreeFree Online Mulch bags calculator
Privacy First
All processing happens in your browser. Your data never leaves your device.
Lightning Fast
Get instant results with zero wait time. No server delays, no loading screens.
Works Everywhere
Use on any device — desktop, tablet, or phone. No downloads or plugins needed.
Frequently Asked Questions — Mulch Calculator
How deep should I apply mulch?
Apply 2–3 inches around trees and garden beds. Do not exceed 4 inches — keep mulch away from plant stems.
How many cubic yards of mulch do I need?
Area (sq ft) × depth (ft) / 27 = cubic yards. A 200 sq ft bed at 3" deep needs ~1.85 yd³.
How much does a cubic yard cover?
One cubic yard covers 108 sq ft at 3", 162 sq ft at 2", or 81 sq ft at 4".