Free tool

Soil Mix Calculator

Enter your bed size for the exact fill volume, a compost, vermiculite, and peat mix, and how many bags to buy.

Your soil mix

16 cu ft total · 8 bags

Compost: 5.3 cu ftVermiculite: 5.3 cu ftPeat / coir: 5.3 cu ft

Mel's Mix is equal thirds by volume. Buy about 8 bags of 2 cu ft each to cover 16 cu ft.

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