Gravel Calculator
Calculate how many tons or cubic yards of gravel your project needs.
Estimate how many tons or cubic yards of gravel, crushed stone or road base you need for a driveway, path or drainage bed based on the area and depth of coverage.
Measurement System
Your Estimate
Total Area
200.0 ft²
Cubic Feet
33.3 ft³
Cubic Yards
1.23 yd³
Tons Needed
1.73 tons
Estimated Cost
$77.78
Based on an average density of 1.4 tons per cubic yard. Densities vary by material.
Results Actions
Common Depths and Thicknesses
Walkway2–3 inches
Patio base4 inches
Driveway4–6 inches
Drainage layer6–12 inches
Accuracy & Assumptions
- Results are estimates only.
- Gravel weight and coverage can vary by material type and supplier.
- Consider ordering an additional 5–10% for compaction and spillage.
- Verify all project measurements before purchasing materials.
- Check local building codes and manufacturer recommendations for base depth.
How This Calculator Works
- 1Measure the length and width of the area to be covered in feet.
- 2Choose a depth — 2" for a top dressing, 4-6" for a driveway base.
- 3We calculate cubic yards, then convert to tons using an average density of 1.4 tons per yard.
Helpful Tips
- Densities vary by material — pea gravel, crushed granite and limestone all pack differently.
- Order 10% extra for compaction loss once the gravel is spread and rolled.
- A geotextile fabric under the gravel reduces long-term rutting on driveways.
This calculator provides an estimate for planning purposes only. Material needs vary by site conditions, waste and supplier specifications — always confirm final quantities with your contractor or supplier before purchasing.