Buying by bed area
Length and width are not enough. Depth decides most of the soil order.
Layout Tool · 2 min
Raised Bed Soil Calculator
Convert bed dimensions into bags, bulk volume, and a mix plan before you buy soil.
Calculate cubic feet, cubic yards, bag count, and mix volumes for raised beds.
What this tool decides
Decides how much bed fill to buy and how the mix breaks down before soil settles.
- 1Set your inputs
- 2Calculate the number
- 3Read the plan
Bed Soil
Change any field and the result updates immediately.
Calculated resultEnter your measurements
The practical plan will appear here.
Read the Plan
How to use this result
What it means
Cubic feet is useful for bags. Cubic yards is useful for bulk delivery.
Next action
Round up for settling, then balance topsoil, compost, and an aeration component.
Check these before using the number
Making compost the whole bed
Too much compost can settle, stay wet, and stress young roots.
Buy soil by volume, then adjust drainage
Raised beds fail when the volume is guessed too low or the mix stays dense after watering.
A bag estimate should include room for settling without turning compost into the entire root zone.