Free Online Tool
Gravel Calculator — Estimate Volume & Weight
Calculate gravel volume in cubic yards, tons, and truckloads for driveways, walkways, and landscaping projects.
4
Gravel Types
3
Shapes
2
Systems
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Gravel Volume Formula
Volume = Area × Depth. For a rectangle: V = L × W × D. For a circle: V = π × (D/2)² × Depth. For a triangle: V = (B × H / 2) × Depth.
Gravel Driveway Example
Inputs
length30
width10
depth4
Calculation Steps
1
Area (sq ft)
30 × 10 = 300 sq ft
2
Depth (ft)
4 ÷ 12 = 0.333 ft
3
Volume (cu ft)
300 × 0.333 = 100 cu ft
4
Volume (cu yd)
100 ÷ 27 = 3.7 cu yd
Final Answer
You need approximately 3.7 cubic yards of gravel (about 5.2 tons). Order 1 truck.
Frequently Asked Questions
For a standard driveway, you need 4-6 inches of gravel depth. Measure length × width × depth (in feet) and divide by 27 to get cubic yards.
Most gravel weighs 1.3-1.7 tons per cubic yard. Pea gravel is about 1.4 tons/yard, crushed stone is about 1.5 tons/yard.
Multiply your cubic yards by the gravel density (typically 1.4 tons per cubic yard for pea gravel). Our calculator does this automatically.
Pea gravel is smooth, rounded stones ideal for pathways and decorative areas. Crushed stone has angular edges that lock together, making it better for driveways and base layers.
For a gravel patio, we recommend 3-4 inches of compacted gravel. For driveways, use 4-6 inches. For walkways, 2-3 inches is sufficient.