Soil
Fill Dirt Calculator
Calculate fill dirt for regrading, leveling low spots, and structural fill projects.
Inputs
Live estimate
Material needed
11.67 cu yd
- Area
- 500 sq ft
- Cubic feet
- 250
- Cubic yards
- 9.26
- Estimated tons
- 15.17
- Estimated truckloads
- 0.83
- Material cost
- $175
- Total cost
- $175
Diagram
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How it's calculated
Area is derived from your shape inputs and converted to sq ft.
Depth is converted to feet; cubic feet = area × depth.
Cubic yards = cubic feet ÷ 27, then × (1 + waste %) × (1 + compaction %).
Estimated tons = cubic yards (with waste) × 1.3.
Truckloads = cubic yards (with waste) ÷ truck capacity.
Total cost = cubic yards (with waste) × price per cubic yard + delivery.
Professional guidance
When to use fill dirt
Filling low spots, raising grade, backfilling around foundations, and structural fill.
Recommended compaction
Fill in 6-inch lifts and compact each pass. Loose fill will settle for years.
Pro tip
For structural fill under slabs or footings, use engineered fill (crushed rock) — not clean fill dirt.
Common mistakes
Using fill dirt where you plan to grow anything. It doesn't drain well and won't support plant roots.
Material assumptions
- Fill dirt density: about 1.3 tons per cubic yard.
- Fill dirt is subsoil — it lacks the organic matter needed to grow plants.
- Compacts 15–25%. Order extra to account for it.
Frequently asked questions
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Related calculators
These results are estimates only. Confirm quantities, compaction, waste, and delivery requirements with your supplier or project professional before ordering materials.