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The Authority Suite
Sprout Authority

Sprout Authority

Raised bed soil calculator

Full tool

Step 1

Enter the bed dimensions

Length and width are in feet. Enter the soil depth you plan to fill in inches.

Step 2

Choose a buying plan

A source-backed starting option for a new bed over existing ground.

Your result

Soil to fill this bed

32

cubic feet to order

1.19

cubic yards

22

1.5 cu ft bags

32

square feet of bed

Topsoil
21.3 cu ft
Finished compost
10.7 cu ft

Volume is length x width x depth x number of beds. Mix options come from University of Maryland Extension, Soil to Fill Raised Beds. The source treats these as options based on the site beneath the bed, not one universal recipe.