Raised Bed Soil Calculator
Calculate the amount of soil needed to fill your raised garden beds. Enter the dimensions of your bed to get the volume in cubic feet, cubic yards, or liters, along with recommendations for soil mix.
Published by:
isCalculator Editorial Team
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How to use this tool?
How to Use the Raised Bed Soil Calculator
- Enter Bed Dimensions – Input the Length and Width of your raised bed in feet (e.g., 8 ft). Then enter the Depth in inches (e.g., 12 in). All values must be positive numbers.
- Choose Output Unit – Select your preferred volume unit: Cubic Feet, Cubic Yards, or Liters.
- Calculate – Click the “Calculate Soil Needed” button. The result shows the exact soil volume you need.
- Read the Results – The volume is displayed prominently. Below, you’ll see the step-by-step formula and a recommended soil mix (50% topsoil, 30% compost, 20% organic matter).
Note: All inputs are in imperial units (feet and inches). The calculator automatically converts depth from inches to feet for the volume calculation.
Previous Results
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Frequently Asked Questions
Measure the length and width of the bed in feet, and the depth in inches. Use a tape measure for accuracy. Our calculator uses these dimensions to compute the volume.
A common mix is 50% topsoil, 30% compost, and 20% other organic matter like peat moss or coconut coir. Adjust based on what you're growing.
Yes, this calculator is designed for rectangular raised beds. For other shapes, you may need a different formula.