Garden calculator
Mulch Calculator
Mulch Calculator. Use the actual product label and your measured quantities. Starting values are editable examples, not universal rates or product specifications. Keep the units beside each input.
Method and practical checks
- The supplier’s coverage rate assumes a particular depth. Do not add that depth a second time.
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Your measurements and assumptions
Use the actual product label and your measured quantities. Starting values are editable examples, not universal rates or product specifications. Keep the units beside each input.
| Measured area | 15 | m² |
|---|---|---|
| Volume per area | 50 | L/m² |
| Extra allowance | 10 | % |
| Pack size | 60 | L |
Method and assumptions
bags = ceil(area_m2 * depth_cm * 10 * (1+allowance/100)/bag_L)
Volume = area × depth. Keep mulch clear of stems and use a depth suitable for the chosen material and plants.
The supplier’s coverage rate assumes a particular depth. Do not add that depth a second time.
Example with the selected inputs
- Volume before allowance: 0.75 m³
- Required quantity: 825 L
- Packs to buy: 14
- Purchase quantity: 840 L
- Left over: 15 L
Change the inputs to match your own task. Whole packages are rounded up after allowances, so purchase quantity and actual requirement can differ. Apply each allowance once.