Calculating Fill Dirt Volume: Simple Formula for Leveling a Yard

Math for Soil Fill: Length × Width × Depth

To raise a lawn area by a specific depth:

Cubic feet = Length (ft) × Width (ft) × Depth (ft)

Example: 1-inch fill = 1/12 ft depth. For a 5,000 sq ft area: 5,000 × (1/12) = 417 cubic feet ≈ 15.4 cubic yards.

Practical Steps

1. Measure length and width of the lawn (break irregular shapes into rectangles).
2. Determine desired fill depth (inches → feet).
3. Calculate cubic yards (cubic feet ÷ 27).
4. Order 10–15% extra for compaction.

Always compact fill in 6-inch lifts. Top with 4–6 inches of quality topsoil/compost blend before sodding/seeding.