CROCODILIAN
Dirt calculator

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.

Area shape
ft
ft
in
$

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.

Area
100 ft²
Volume
50.0 ft³
You need
1.85cubic yards
Order (rounded up)2.00 yd³
Weight (approx.)1.94 tonsrange 1.76–2.41 t (moisture)
Estimates for planning — confirm quantities with your supplier.
Real-world quantities vary with moisture, compaction, cuts, and site conditions. These calculators use standard formulas and published constants (see the About page for sources); order with a sensible allowance and confirm with your supplier or contractor.

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.

Quick reference

Published weights of earth per cubic yard
Statelb per yd³tons per yd³
Dry, loose1,8900.95
Damp, loose2,1061.05
Damp, packed2,5921.30

From the classic construction-materials weight chart; the LA County table lists soil at 2,025 (dry) and 2,106 (wet). Sources on the About page.

Frequently asked questions