Construction & Home
Gravel & Fill Dirt Calculator
Convert area and depth into cubic yards and tons of gravel, fill dirt, sand, or topsoil. Handles density per material.
ft
ft
in
Cubic yards
2.47
Cubic feet
66.7
Tons
3.33
Pounds
6,667
How this is calculated
Volume = length × width × depth. Tonnage depends on material density:
- Crushed stone (¾"): ~100 lb/ft³ → 1.35 tons/yd³
- Pea gravel: ~105 lb/ft³ → 1.42 tons/yd³
- River rock: ~95 lb/ft³ → 1.28 tons/yd³
- Fill dirt: ~95 lb/ft³ → 1.28 tons/yd³
- Topsoil: ~75 lb/ft³ → 1.0 ton/yd³
Common depths
- Driveway base: 4–6 in crushed stone
- Drainage layer: 4 in pea gravel
- Garden topsoil: 6–12 in
Frequently asked
- About 1.4 tons for dry crushed stone, 1.5 tons for pea gravel, 1.6 tons for road base. Wet material is heavier — see the density picker above.