Garden Bed Soil Calculator

Calculate how much soil you need to fill a garden bed or raised bed.

Soil Volume
cubic yards
For the bed.

Usage Tip

Fill a new bed a little proud of the top; fresh soil and compost settle by an inch or two in the first season.

THE MATH
cubic yards = (length × width × depth ÷ 12) ÷ 27
Soil fill for a bed is its length times width times depth, converted to cubic yards. One cubic yard equals 27 cubic feet.
Enter the bed length, width, and the soil depth you want to fill.
For a raised bed, use the inside dimensions and the fill height.
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The calculators and tools on Formula Factory are provided for general guidance and informational purposes only. Results are estimates based on standard formulas and the values you enter — they do not constitute professional engineering, electrical, or architectural advice. Always verify calculations with a qualified professional before making decisions for any safety-critical, code-compliance, or commercial application. Formula Factory makes no representations or warranties as to the accuracy or completeness of any result, and accepts no liability for errors, omissions, or any outcomes arising from reliance on this information.