Raised bed soil calculator
Calculate soil for rectangular beds, round planters and tapered pots. Convert inside dimensions and fill depth into cubic feet, liters, bags and cubic yards.
Choose a bed to start with
Measure the inside of the bed
Soil depth is the inside height minus the space you leave empty at the top.
Prepare the spot for this bedLeave space to work around it
Sides refer to the drawing. For round containers, select all four sides to check reach from the whole rim. Layout clearances use the enclosing outside rectangle, including for round beds.
Work out your soil order
Split into your own mix
Already have a two-part soil mix in mind? Enter the percentage of each ingredient. Read the soil and surface guidance before choosing a mix.
Compare your bag and bulk quotes
Private amounts stay on this page and are excluded from save, share and print. Enter 0 for a genuinely free delivery.
12 inches filled depth · 2 inches left empty at the top
The bed is within your entered 24-inch reach from both long sides.
Use the dimensions you actually plan to fill
All measurement fields change together between inches and centimeters. Leave the space above the soil empty. Extra soil starts at zero; add some only if you want more than the bed holds.
Round containers use a circular cross-section. The tapered-pot option uses the inside top and bottom diameters; a flexible bag may bulge, so a geometric estimate is approximate. For an L-shaped bed, enter non-overlapping rectangular sections as separate beds.
How to measure a raised bed for soil →