Turn a total bed volume into an easy three-part soil blend with editable percentages.
Use this as a planning estimate. Verify product labels, local conditions and supplier packaging before buying or applying materials.
Compost and aeration volumes equal total volume × their percentages. The remaining percentage is assigned to topsoil or base mix.
SproutScale preserves full precision while calculating and rounds only the displayed result or the final purchasable unit.
The calculator caps the remaining base mix at zero and flags the blend so you can reduce one of the added components.
No. Drainage, water retention, pH and nutrient needs vary, so use the ratio as a planning starting point.