♻️ Soil Amendment
Enter your bed area and desired depth to find exactly how many cubic feet, cubic yards, and bags to buy.
Related Calculators
Compost is decomposed organic matter applied to improve soil nutrition and structure. Work it into the top few inches of soil or use as a top dressing.
Mulch is applied on top of soil to suppress weeds, retain moisture, and regulate temperature. It can be wood chips, straw, bark, or leaves.
| Purpose | Depth |
|---|---|
| Compost top dressing | 1–2 in |
| Soil amendment (tilled in) | 2–4 in |
| Mulch – weed suppression | 3–4 in |
| Mulch – pathway | 4–6 in |
| Winter insulation | 4–6 in |
Cu ft = (Area sq ft × Depth in inches) ÷ 12
Cu yards = Cu ft ÷ 27