Gravel Calculator
Enter your project's length, width, and depth to calculate exactly how much gravel to order — in cubic yards and tons.
Results
- Cubic yards
- 0.93 yd³
- Cubic feet
- 25.0 ft³
- Weight
- 1.30 tons
Assumed density: 2800 lb/yd³ (Crushed Gravel)
How it works
Measure your area in feet and enter the desired depth in inches.
The calculator converts to cubic feet, then to cubic yards (÷ 27).
Tons are estimated using gravel's density of ~2,800 lb/yd³ for crushed gravel.
Reference chart
Crushed gravel coverage at common depths (1 ton ≈ 0.71 yd³)
| Depth (in) | Coverage per ton (sq ft) |
|---|---|
| 1 | 231 |
| 2 | 115 |
| 3 | 77 |
| 4 | 58 |
| 6 | 38 |
Frequently asked questions
How many tons of gravel do I need for a 10×20 ft driveway at 4 inches?
10 × 20 × (4/12) = 66.7 cu ft ÷ 27 = 2.47 yd³ × 2,800 lb/yd³ = 6,914 lb ÷ 2,000 = 3.5 tons.
How deep should a gravel driveway be?
4 inches is the minimum for light traffic; 6 inches is recommended for vehicles and winter climates.
What is the difference between crushed gravel and pea gravel?
Crushed gravel has angular edges that compact and interlock — ideal for driveways. Pea gravel is smooth and rounded, better for paths and decorative beds.