Soil Amendment Converter
Calculate volume and weight of soil amendments for gardening and landscaping
Volume & Weight Conversions
Cubic Yards
0.37
Cubic Meters
0.28
Weight (lbs)
400
Weight (kg)
181.44
* Compost: ~40 lbs per cubic foot
Coverage Calculator
Volume Needed
25 cu ft
Cubic Yards
0.93 cu yd
Weight
1,000 lbs
Amendment Density Reference
| Amendment | lbs/cu ft | lbs/cu yd | kg/m³ |
|---|---|---|---|
| Compost | 40 | 1080 | 640 |
| Peat Moss | 8 | 216 | 128 |
| Perlite | 5 | 135 | 80 |
| Vermiculite | 6 | 162 | 96 |
| Sand | 100 | 2700 | 1600 |
| Garden Soil | 75 | 2025 | 1200 |
| Mulch (Wood) | 20 | 540 | 320 |
| Bark Chips | 15 | 405 | 240 |
| Manure (Composted) | 45 | 1215 | 720 |
| Lime (powdered) | 80 | 2160 | 1280 |
| Gypsum | 70 | 1890 | 1120 |
| Sulfur | 60 | 1620 | 960 |
Application Rate Guidelines
| Amendment | Rate | Notes |
|---|---|---|
| Compost (general) | 1-3 inches | Work into top 6-8 inches |
| Compost (raised beds) | 3-6 inches | For new beds |
| Peat Moss | 1-2 inches | Acidifying, moisture retention |
| Lime | 50-100 lbs/1000 sq ft | To raise pH |
| Sulfur | 10-15 lbs/1000 sq ft | To lower pH |
| Mulch | 2-4 inches | Around plants, not touching stems |
| Manure | 1-2 inches | Must be well composted |