Soil Volume Calculator
Rectangular Raised Bed
Calculate soil volume for a rectangular raised bed
$
Circular / Round Bed
Calculate soil volume for a round raised bed
$
Formula
Volume (cu yd) = L × W × (Depth/12) / 27 | Round: π × r² × (Depth/12) / 27
Frequently Asked Questions
How much soil do I need for a 4x8 raised bed?
A 4×8 ft bed at 12 inches deep needs about 32 cu ft (1.2 cu yd) of soil. At 6 inches deep, you need about 16 cu ft (0.6 cu yd). Bulk delivery is cheapest for large orders.
What is the best soil mix for raised beds?
A 60/40 mix of topsoil and compost works well for most vegetables. Mel's Mix (equal parts compost, peat moss, and vermiculite) is popular for square foot gardening but more expensive.
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