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Calculate the cubic yards, tons, and cost of gravel for driveways, patios, walkways, and landscaping projects.
Gravel is loose aggregation of rock fragments used in construction and landscaping. It comes in various sizes, colors, and types, each suited for specific applications from driveways to drainage systems to decorative landscaping.
Cubic Yards = (Area in sq ft × Depth in inches) ÷ 324
Tons = Cubic Yards × Tons per Cubic Yard (typically 1.4)
For a 200 sq ft driveway with 4" gravel depth using crushed stone:
Cubic Yards = (200 × 4) ÷ 324 = 2.47 cu yd
Tons = 2.47 × 1.4 = 3.46 tons
| Application | Recommended Depth |
|---|---|
| Decorative beds | 1-2 inches |
| Walkways/paths | 2-3 inches |
| Driveways (light use) | 3-4 inches |
| Driveways (heavy use) | 4-6 inches |
| Drainage/French drain | 6-12 inches |
A typical 12×50 ft driveway (600 sq ft) at 4" depth requires about 3 tons of gravel. Use crushed stone for best stability.
One ton of gravel covers approximately 100 sq ft at 2" depth, 80 sq ft at 3" depth, or 50 sq ft at 4" depth.
Gravel is naturally rounded from water erosion, while crushed stone is mechanically broken with angular edges. Crushed stone compacts better for driveways.
Yes, landscape fabric prevents weeds and stops gravel from mixing with soil. It's especially important for decorative applications.