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

A blend of about two-thirds topsoil to one-third compost gives a good base for most raised vegetable beds.

THE MATH
cubic yards = (length × width × depth ÷ 12) ÷ 27
Soil fill is the bed length times width times depth, converted to cubic yards. One cubic yard equals 27 cubic feet.
Enter the bed length, width, and fill depth.
For raised beds, measure the inside dimensions and the fill height you actually want.
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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.