Fill depth · cubic feet · whole bags
Raised Bed Soil Calculator
Enter the inside dimensions and fill depth of your garden bed to estimate soil by cubic foot, cubic yard, or the bag size you plan to buy.
Worked example
- Bed area
- 32 sq ft
- Fill depth
- 12 in
- Bulk volume
- 1.19 cu yd
Example only. Your result uses your measurements and product details.
Your result
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How it works
What the result means
Cubic feet = inside length (ft) × inside width (ft) × fill depth (in) ÷ 12 × number of beds. Cubic yards = cubic feet ÷ 27. Whole bags = round up(cubic feet ÷ volume per bag).
Measure the inside of the frame, then choose the soil depth you actually want to fill. Bags are rounded up to whole packages.
How to build a raised garden bed →Reference
Source behind this calculator
Use the guidance as a starting point and confirm dimensions against your chosen product or supplier.