Construction Tools
Calculate how much gravel you need for your project. Enter length, width, and depth to find cubic yards and total weight.
Gravel Needed
2.47 cubic yards
Based on 1.40 tons per cubic yard average gravel density.
Gravel is loose aggregate material used for driveways, paths, landscaping, and fill. This calculator measures the volume of space you need to fill and converts it to cubic yards—the standard unit for ordering gravel. It also calculates the weight based on gravel density, helping you understand delivery requirements and costs.
Enter the length and width of your project area in feet and the depth in inches. The calculator converts these measurements to cubic yards and multiplies by gravel density (default 1.4 tons per cubic yard) to estimate total weight. Results include cubic feet, tons, and kilograms.
Volume (cubic yards) = (Length × Width × Depth in feet) ÷ 27; Weight (tons) = Volume × DensityFirst, convert depth from inches to feet by dividing by 12. Then multiply length × width × depth to get cubic feet. Divide by 27 to convert to cubic yards. Finally, multiply cubic yards by the gravel density (typically 1.4 tons per cubic yard) to find total weight. The calculator handles all conversions automatically.
| Input | Result | Notes |
|---|---|---|
| Driveway: 20 feet long, 10 feet wide, 4 inches deep, 1.4 tons/cu yd density | 2.47 cubic yards needed, 3.45 tons weight | Volume = (20 × 10 × 0.333 feet) ÷ 27 = 2.47 cubic yards; Weight = 2.47 × 1.4 = 3.45 tons |
| Pathway: 50 feet long, 3 feet wide, 2 inches deep | 0.93 cubic yards, 1.30 tons | Shallow pathways need less material; adjust depth for heavier traffic areas |
| Large driveway: 40 feet long, 20 feet wide, 4 inches deep | 9.88 cubic yards, 13.83 tons | Most driveways use 2–4 inches of gravel for durability and drainage |
Driveways typically need 2–4 inches for stability and drainage. Pathways work with 1–2 inches. Heavy-traffic areas benefit from 4–6 inches. Shallow layers compact quickly.
Crushed stone is angular and locks together well, ideal for driveways. Pea gravel is smooth and comfortable to walk on, better for pathways. River rock is decorative but poor for driveways. Density varies by type.
Most gravel weighs 1.2–1.6 tons per cubic yard. The calculator uses 1.4 tons by default. Crushed stone is heavier; pea gravel is lighter. Check with your supplier.
Yes. Gravel settles 10–15% after installation and rain. Order extra to maintain your target depth over time.
Break the area into rectangles, calculate each separately, and add the results. For circular areas, use length and width as diameter measurements.
One cubic yard is 27 cubic feet—a 3×3×3 foot cube. It covers roughly 100 square feet at 3 inches deep.