How to Calculate Soil for a Raised Bed
Multiply bed length by bed width, then multiply by soil depth in feet. This calculator converts inches to feet and multiplies by the number of beds.
Common Raised Bed Soil Depths
Six inches can work for shallow greens, 10 to 12 inches is common for many vegetables, and deeper beds help crops with larger root systems.
Should You Buy Bags or Bulk Soil?
Bags are simple for small beds and tight spaces. Bulk soil is usually better for several beds, but confirm delivery fees, soil mix quality, and where the pile can be dropped.
Why You Should Round Up Slightly
Fresh soil settles after watering and planting. Buying a little extra gives you material for topping off low spots without making another trip.
Raised Bed Soil Calculator FAQs
Does this include compost?
The total volume can include your full soil blend, including compost, topsoil, and other amendments.
Should I fill the whole bed with bagged soil?
For deep beds, many gardeners use logs, branches, compost, or native soil in the lower layers, then reserve higher-quality soil for the root zone.