Raised Bed Soil Calculator
Calculate raised-bed soil from one or more simple bed shapes, fill depth and an optional bag size.
Results
Bed area
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Soil volume
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Bags
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Use the result as a planning estimate and verify project-specific measurements, product information and site conditions where relevant.
How it works
The calculator totals the bed plan area, multiplies it by soil depth, and optionally rounds up to whole bags.
soil volume = bed area × depth × (1 + extra %)Worked example
An 8 ft × 4 ft bed filled 12 in deep requires 32 ft³, or about 1.19 yd³.
Assumptions
- Depth is assumed uniform across the measured bed.
Limitations
- Fresh soil can settle after filling; bag yields and delivered bulk volumes vary.