A worked example
5 × 2 m at 5 cm deep uses 500 L. Add 10% for 550 L, or 11 bags of 50 L.
Mulch coverage
Turn a rectangular area and layer depth into litres, cubic yards and whole bags of mulch.
YOUR LITTLE WORKBENCH
Mulch coverage
Start with the example, then make it your own. Results update as you type.
How this is calculated
Volume = length × width × layer depth. Buying volume = geometric volume × (1 + allowance).
YOUR PLAN / LIVE RESULT
Planned buying volume
550 L- Geometric volume
- 500 L
- Whole bags to buy
- 11
- Volume in whole bags
- 550 L
- Buying volume
- 19.4231 ft³
- Buying volume
- 0.7194 yd³
- Surface area
- 10 m²
Enter the area actually covered and your chosen depth. Settlement, terrain and material density vary. The calculator does not recommend a depth for a specific plant.
THE METHOD / 01
Know what goesinto your result.
Volume = length × width × layer depth. Buying volume = geometric volume × (1 + allowance).
Keep the assumptions clear
Enter the area actually covered and your chosen depth. Settlement, terrain and material density vary. The calculator does not recommend a depth for a specific plant.
A FEW USEFUL ANSWERS
Good to know.
Are my inputs uploaded?
No. Calculations run locally in your browser. The host still receives normal requests for website pages and assets.
Can I keep my result?
Export a CSV, or use Print / PDF and choose Save as PDF in your browser. Inputs are not saved between visits.
Do I need an account?
No sign-up, paid API or subscription is required. Both language versions use the same calculation logic.
GROWKIND / TOOLKIT
A little help for every step.
01
Raised bed soil
Calculate the soil volume and whole bags for rectangular raised beds, with your own extra allowance.
Open tool02
Planter soil
Estimate soil for a round, tapered planter using the diameters at the fill line and base.
Open tool03
Plant spacing
Lay out an aligned planting grid with equal border clearances. See how many rows and plants fit.
Open tool