Fill dirt calculator
Area and depth to cubic yards and tons of fill — with the loose-versus-packed math that keeps holes from coming up short.
Pre-filled example: a 10 × 10 ft area raised 6 inches. Tons use a typical 2,100 lb/yd³ within the published 1,900–2,600 range.
Loose vs packed — the allowance that matters
Dirt arrives loose and ends up compacted. The published chart figures put dry loose earth at 1,890 lb/yd³ and damp packed earth at 2,592 lb/yd³ — the same material, about 27% less volume once packed. Practical upshot: to end up with one compacted cubic yard in the ground, plan on roughly 1.3–1.4 loose yards delivered.
The calculator reports the geometric volume of your area. For structural fills, grading against foundations, or anything load-bearing, compaction spec and lift depths come from your contractor or engineer — not from a web calculator.