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🪨 Gravel Calculator
Estimate how many tons and cubic yards of gravel you need for driveways, paths, patios, and landscaping.
📐 Enter Your Dimensions
in
💡 Driveway: 4–6" · Patio base: 4" · Decorative path: 2–3"
$/t
📊 Your Results
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Tons of Gravel
Cubic Yards—
Cubic Feet—
Weight (lbs)—
Area Covered—
Estimated Cost
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Gravel: $25–$55/ton bulk. Delivery: $50–$150 extra.
How to Calculate How Much Gravel You Need
Gravel is one of the most versatile landscaping and construction materials — used for driveways, garden paths, drainage layers under patios, and decorative beds. Getting the right quantity saves you from expensive second deliveries or wasted material.
The Gravel Formula
Tons = (L × W × D in inches ÷ 324) × Density
Example: A 200 sq ft driveway at 4" deep with #57 crushed stone:
200 × 4 ÷ 324 = 2.47 yd³ × 1.4 = 3.45 tons
Gravel Types and Uses
- #57 Crushed Stone: Best for driveways and patio bases — compacts well
- #411 / Crush and Run: Self-compacting, ideal for base layers
- Pea Gravel: Smooth, decorative, great for paths and fire pits
- River Rock: Smooth large stones for decorative beds and drainage
- Lava Rock: Lightweight, great for garden beds, very striking look
🚗 Driveway Depth
A new gravel driveway needs 4–6 inches total depth. Apply in two 2-3" lifts and compact between layers. Use a compactable base stone for the first layer and pea gravel on top for appearance.
📦 Delivery
Gravel is sold by the ton or cubic yard. Most suppliers deliver 10+ ton minimum economically. For small projects, buy bags at a hardware store (typically 50 lb = 0.5 cu ft).
Frequently Asked Questions
For a standard 100 ft × 10 ft driveway at 4 inches deep, you need approximately 12–15 tons of gravel depending on stone type. Use our calculator above for exact dimensions.
One ton of #57 crushed stone covers approximately 65 sq ft at 4 inches deep, or 100 sq ft at 2.5 inches. Coverage varies by stone density.
#57 crushed stone or #411 crush and run are the most popular choices for driveways. They compact well, drain effectively, and provide a stable surface. Avoid round pea gravel for driveways — it doesn't lock in place and spreads under tires.
For a paver or concrete patio, lay a 4-inch compacted gravel base (use #57 or #411 stone) over a compacted subgrade. Top with 1 inch of sand before setting pavers. This provides drainage and prevents frost heaving.