Mulch Calculator
Calculate mulch volume in cubic yards, cubic feet and cubic meters, with an optional bag-count estimate.
Results
Material volume
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Estimated bags
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Use the calculated quantity as a planning estimate and check supplier pack sizes or delivery conventions before ordering.
How it works
The calculator finds the project area, multiplies it by depth, and then applies the selected extra/waste percentage. Estimated weight, where provided, equals calculated volume × bulk density.
volume = area × depth × (1 + waste %)Worked example
For a 20 ft × 10 ft bed at 3 in deep with 5% extra, the required mulch volume is about 1.94 yd³ (52.5 ft³).
Assumptions
- Volume includes the extra/waste percentage you enter.
Limitations
- Loose materials settle and compact, so delivered quantity can differ from calculated loose volume.