Fill Dirt Calculator
Estimate how much fill dirt you need in cubic yards and tons for leveling, grading, and backfill.
Project prep: Confirm clean-fill requirements, compaction plan, drainage, grading tools, and delivery access before you buy.
How to calculate fill dirt
Volume = Length × Width × Depth. Divide cubic feet by 27 for cubic yards. Fill dirt weighs about 1.25 tons per cubic yard (heavier when wet or high in clay).
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Topsoil calculator · Gravel calculator · Sand calculator
FAQ
How much fill dirt do I need?
Area (sq ft) × depth (ft) ÷ 27. E.g. 400 sq ft at 6 in ≈ 7.4 cu yd.
How much does a yard of fill dirt weigh?
About 1.2–1.3 tons, heavier when wet or with clay.