Mulch Calculator
Enter the area and depth to estimate mulch volume and weight for your landscaping project.
Typical bulk density: wood ~400, bark ~500, compost ~600 kg/m?.
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How mulch is calculated
Mulch volume is calculated by multiplying length ? width ? depth. Inputs are converted to meters for consistent volume output.
Weight is calculated by multiplying volume by bulk density. Typical bulk densities vary by mulch type and moisture.
Choose a mulch type or enter a custom density if your supplier provides a specific value.