The calculation, explained.
Volume = area × depth/12 in US units. Divide cubic feet by 27 for cubic yards. Whole bags round up from volume ÷ entered bag volume.
Review the example assumptions and results
- Area
- 100 ft²
- Depth
- 3 in
- Bag volume
- 2 ft³
- Volume
- 25 ft³
- Cubic yards
- 0.9259 yd³
- Bags
- 13
How this tool works
Adjust the labeled inputs to see a new calculation. Units and assumptions are shown beside each field. Printed and copied results use the same calculation.
This is a planning estimate, not a structural design, permit document or binding quote. Check product specifications and actual site measurements.
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