Weight = Volume × Density
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This calculator helps determine the volume and weight of soil needed for raised garden beds. It's essential for planning garden projects and ensuring proper soil quantities.
The calculator uses the formula:
Where:
Explanation: The calculation first determines volume in cubic feet, then multiplies by density to estimate weight.
Details: Accurate soil calculations help with project planning, structural support requirements, and transportation logistics for garden beds.
Tips: Measure bed dimensions accurately. Typical soil densities range from 75-100 lbs/ft³ (moist garden soil). For potting mix, use 25-40 lbs/ft³.
Q1: How do I measure bed dimensions?
A: Measure length and width at the top of the bed. Depth should be the desired soil depth (typically 6-12 inches for most plants).
Q2: What's the average soil density?
A: Moist garden soil averages 75-100 lbs/ft³. Dry topsoil is about 75 lbs/ft³, while wet clay can be 100+ lbs/ft³.
Q3: How many bags of soil do I need?
A: Divide total cubic feet by bag size (typically 1-2 cubic feet per bag). Remember to account for settling over time.
Q4: Should I include amendments in calculations?
A: This calculator estimates base soil needs. Additional amendments (compost, perlite) may increase total volume needed.
Q5: How accurate are these estimates?
A: Estimates are within 10-15% of actual needs, depending on soil compaction and moisture content.