1Backyard Grading (30 × 20 ft, 6 inches deep)
Inputs
Result
Volume = 30 × 20 × (6/12) = 300 cu ft = 11.11 yd³. With 20% compaction = 13.33 yd³. Weight = (300 × 1.2 × 100) / 2000 = 18.00 tons. 2 truckloads. Material $200 + delivery $150 = $350.
Fill Dirt Needed
13.33 yd³
Weight
18.00 tons
Truck Loads
2
Total Cost
$350
13.33
18.00 tons
2
$350
Inputs
Result
Volume = 30 × 20 × (6/12) = 300 cu ft = 11.11 yd³. With 20% compaction = 13.33 yd³. Weight = (300 × 1.2 × 100) / 2000 = 18.00 tons. 2 truckloads. Material $200 + delivery $150 = $350.
Inputs
Result
Volume = 15 × 15 × (12/12) = 225 cu ft = 8.33 yd³. With 20% compaction = 10.00 yd³. Weight = (225 × 1.2 × 110) / 2000 = 14.85 tons. 1 truckload. Material $150 + delivery $75 = $225.
Measure the area length, width, and fill depth. Volume = Length × Width × (Depth / 12) in cubic feet, then divide by 27 for cubic yards. Add 20% for compaction since fill dirt settles after placement.
Fill dirt weighs 2,000-3,000 lbs per cubic yard depending on type. Clean fill averages 2,700 lbs/yd³, topsoil about 2,025 lbs/yd³, and clay about 2,970 lbs/yd³.
| Fill Type | Density (lbs/ft³) | Weight per yd³ | Primary Use |
|---|---|---|---|
| Topsoil | 75 | ~2,025 lbs | Gardens, lawns, planting beds |
| Sandy Loam | 90 | ~2,430 lbs | General landscaping, good drainage |
| Clean Fill | 100 | ~2,700 lbs | Grading, foundations, structural fill |
| Clay | 110 | ~2,970 lbs | Drainage barriers, dam construction |
Clean fill is subsoil free of organic matter, debris, and contaminants, used for grading and filling. Topsoil is the nutrient-rich top layer used for gardens and lawns. Clean fill compacts better for structural support.
| Property | Clean Fill | Topsoil |
|---|---|---|
| Organic matter | None—inert subsoil | 5–10% organic content |
| Compaction | Compacts well, stable | Settles unevenly, not structural |
| Drainage | Good to moderate | Variable, can retain water |
| Cost per yd³ | $10–$20 | $20–$50 |
| Best use | Grading, foundations, fill | Gardens, lawns, planting |
A standard dump truck holds 10-12 cubic yards of fill dirt. Divide your total cubic yards (including compaction factor) by the truck capacity. For example, 25 cubic yards requires 3 truckloads at 10 yd³ per truck.
| Truck Type | Capacity (yd³) | Weight Limit | Best For |
|---|---|---|---|
| Pickup truck | 1–1.5 | ~2,000 lbs | Small garden projects |
| Single-axle dump | 5–6 | ~13,000 lbs | Small to mid-size jobs |
| Tandem-axle dump | 10–12 | ~26,000 lbs | Most residential projects |
| Tri-axle dump | 14–18 | ~40,000 lbs | Large excavation/grading |
Fill dirt compresses 15-25% when compacted with heavy equipment. Adding a compaction factor (typically 20%) ensures you order enough material to reach the desired final grade after settling.
Read our guide
Read our guide
Read our guide
Calculate gravel needed
Calculate excavation volume
Calculate soil needed
Calculate concrete needed
Calculate materials for your building projects
Last Updated: Mar 11, 2026
This calculator is provided for informational and educational purposes only. Results are estimates and should not be considered professional financial, medical, legal, or other advice. Always consult a qualified professional before making important decisions. UseCalcPro is not responsible for any actions taken based on calculator results.