Gravel Volume Calculator
Cubic yards and tons of gravel for a driveway, base course, or landscape area.
Result
Gravel needed
4.44 yd³
6.22 tons (using 1.4 t/yd³).
- Cubic feet120.0
- Cubic yards4.444
- Tons6.22
- Area360 ft²
Step-by-step
- Volume = 30 × 12 × 0.333 ft = 120.00 ft³.
- Cubic yards = 120.00 ÷ 27 = 4.444 yd³.
- Tons = 4.444 × 1.4 = 6.22 tons.
How to use this calculator
- Enter the area dimensions and the desired depth in inches.
- Adjust tons-per-yard if you know the specific stone — pea gravel is on the lighter end.
- Read both the cubic-yard and ton totals so you can match the supplier's pricing unit.
About this calculator
Gravel is sold by both cubic yard and ton. Most stone yards use weight, so converting is essential. Density varies by stone type — pea gravel ≈ 1.35 t/yd³, crushed limestone ≈ 1.4, larger ¾" stone closer to 1.5. For a 4-inch driveway base, plan on roughly one yard per 80 ft².
Frequently asked
4 inches over a compacted sub-base for a residential driveway. Heavier traffic: 6-8 inches in two lifts.
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