Garden Soil Calculator
Work out how much garden or topsoil you need to fill beds or level an area, by area and depth.
| Bulk garden soil (incl. 5% allowance) | 2.40 m³ | $139 |
| Or bagged (25L) | ≈97 bags | |
| Delivery | $90 |
How we estimate this
Soil is sold by the cubic metre or in bags. This calculator multiplies your area by the fill depth to give the volume you need.
Pricing reviewed: October 2026.
Pricing reviewed October 2026. Indicative Australian costs, not a quote.
Understanding garden soils in Australia
Soil is sold by the cubic metre or in bags. This calculator multiplies your area by the fill depth to give the volume you need.
Raised beds and lawns being levelled often need 100–200mm. Bulk delivery is cheaper than bags for anything more than a small top-up.
Frequently asked questions
How much soil do I need?
Multiply area by fill depth, e.g. 6×4m at 150mm needs about 3.6m³. The calculator works this out and converts to bags.
How deep should garden soil be?
Garden beds typically need 100–300mm; levelling a lawn usually needs 50–100mm. Deeper fills need more material.
Is bulk soil cheaper than bagged?
Yes, bulk delivery is much cheaper per cubic metre than bags for anything beyond a small top-up.
Are you a material supplier or hardware store?
Everyone on this page is working out what garden soil costs because they are ready to hire. Put your business right beneath the calculator, in your state, so you are who they find. From $50/mo.