Gravel projects look simple—until you realize you ordered too much (or way too little). Whether you’re laying a new driveway, filling in a path, or prepping for a landscaping project, this guide will help you estimate gravel the right way.
1. Use This Gravel Formula
Gravel Needed (in cubic feet) = Length × Width × Depth
Example:
- Driveway: 20 ft × 10 ft
- Depth: 4 inches (0.33 feet)
20 × 10 × 0.33 = 66 cubic feet
2. Convert to Cubic Yards
Gravel is sold in cubic yards.
Cubic Yards = Cubic Feet ÷ 27
66 ÷ 27 = ~2.44 cubic yards
Always round up a little to account for settling and compaction → order 2.5 to 3 cubic yards
3. Convert to Tons (Optional)
Gravel weighs about 1.4 tons per cubic yard (varies by material)
2.5 yards × 1.4 = 3.5 tons
4. Use a Gravel Calculator
Want to skip the math? Use our [Gravel Calculator] and get instant results by just entering your dimensions and depth.
Common Depth Recommendations
- Walkways: 2–3 inches
- Driveways: 4–6 inches
- Drainage projects: 6–8 inches
Final Tip:
Always add 5–10% extra to your order for safe coverage.