How many tons of gravel do I need for a driveway?

A standard single-car driveway (50×10 ft) at 4 inches deep needs about 6.2 cubic yards or roughly 8–9 tons of crushed stone. Gravel weighs approximately 1.35–1.5 tons per cubic yard depending on stone type.

How deep should a gravel driveway be?

A new gravel driveway should be 4–6 inches deep for residential use. Driveways receiving heavy vehicles should be 6–8 inches. For long-term durability, install 2–3 layers: a compacted base layer of larger crushed stone, a middle layer of processed gravel, and a top layer of fine gravel.

How much does a gravel driveway cost?

Bulk gravel costs $15–$40 per ton depending on type and region. A typical single-car driveway (50×10 ft, 4 inches deep) uses 8–9 tons — about $120–$360 in materials plus delivery. Pea gravel and decorative stones cost more; crushed limestone and road base are the most economical.

Gravel Driveway Calculator — Cubic Yards & Tons

Enter Driveway Details

Quick Presets

Length

Width

Depth

Gravel Type

Waste Factor

Currency

Price per Ton (your local price)

Price per Cubic Yard (your local price)

Prices vary by location. Enter your local supplier rates.

Your Gravel Estimate

You Need

—

cubic yards of gravel

Coverage Area

—

square feet

Weight

—

tons

Cubic Feet

—

cu ft (total)

Cost Estimate

By Weight (tons)

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By Volume (cu yd)

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Gravel prices vary by delivery distance. Contact local suppliers with your cubic yard total for accurate quotes.

Example Calculation

Here is a step-by-step walkthrough for a standard single-car driveway: 50 feet long, 10 feet wide, 4 inches deep with crushed limestone.

50 × 10 ft driveway, 4 inches deep — crushed stone

Step 1 — Area 50 × 10 = 500 sq ft
Step 2 — Volume 500 × (4 ÷ 12) = 166.67 cu ft
Step 3 — Add 10% Waste 166.67 × 1.10 = 183.33 cu ft
Step 4 — Cubic Yards 183.33 ÷ 27 = 6.79 cu yd
Step 5 — Tons 6.79 × 1.40 = 9.51 tons
Step 6 — Cost (at $28/ton) $266 in materials (before delivery)

How This Calculator Works

The calculator multiplies your driveway length × width × depth to get the total volume in cubic feet, then converts to cubic yards. A waste factor (typically 10%) is added to account for spreading variation and low spots.

Weight in tons is calculated by multiplying cubic yards by the density of your chosen gravel type. Crushed stone weighs around 1.40 tons/yd³; pea gravel is slightly lighter at 1.35 t/yd³; compacted road base is heavier at 1.50 t/yd³.

Pro tip: Most suppliers sell by the ton for delivery. Knowing your tonnage before you call will help you get accurate quotes and avoid over-ordering.

Practical Tips for Gravel Driveways

Use 3 layers for a durable driveway. A base layer of large crushed stone (3–4 in), a middle layer of processed gravel (2 in), and a top layer of finer stone (1–2 in). Each layer should be compacted before adding the next.
Install edging or borders. Gravel migrates outward without edging. Steel, plastic, or timber borders keep the gravel in place and reduce the amount you need to replace annually.
Compact each layer. A plate compactor (rentable at most equipment shops) compresses gravel for better load bearing and reduces ruts over time. Never skip this step for driveways with vehicle traffic.
Crown the center slightly. A slight rise down the center of the driveway (1–2 inches higher than the edges) channels water to the sides and reduces erosion.
Add geotextile fabric at the base. A layer of landscape fabric over native soil before laying the base rock prevents the gravel from sinking into soft ground over time — especially important in clay soils.
Top up annually. Gravel naturally migrates and compacts over time. Plan to add a thin top layer every 1–2 years to maintain depth and appearance.

Common Mistakes to Avoid

Using the wrong gravel type. Pea gravel looks attractive but rolls underfoot and under tires — it's poor for driveways. Crushed angular stone locks together when compacted; round smooth stones do not. Use crusher run, crushed limestone, or quarry process for functional driveways.

Not going deep enough. A 2-inch gravel layer will scatter and thin quickly under vehicle traffic. Four inches minimum for passenger cars; 6 inches for trucks and heavy vehicles.

Skipping compaction. Loose uncompacted gravel creates ruts, sinks unevenly, and requires frequent regrading. Rent a plate compactor for every layer — it takes an hour and saves years of maintenance.

Forgetting delivery minimums. Most bulk gravel suppliers have a 5–10 ton minimum for delivery. If your project is smaller, you may need to pick up in bags or combine orders with a neighbor.

Assumptions

◦Density values: Crushed stone 1.40 t/yd³, pea gravel 1.35 t/yd³, road base 1.50 t/yd³, river rock 1.30 t/yd³. These are industry averages — actual density varies by stone type and moisture content.
◦Waste factor: Default 10% covers spreading variation and low spots. Increase to 15% for irregular shapes or existing ruts.
◦Depth in inches: All depth inputs are in inches and converted to feet internally (divide by 12).
◦Prices vary significantly: Gravel prices depend heavily on region, supplier, and delivery distance. The cost estimate is a material-only figure before delivery fees.
◦Results are estimates: Confirm quantities with your local supplier — they can advise on local stone density and delivery minimums.

Frequently Asked Questions

A 100-foot driveway that is 12 feet wide and 4 inches deep needs about 14.8 cubic yards or roughly 21 tons of crushed stone (with 10% waste). At $28/ton, that's approximately $590 in materials before delivery. Use the calculator above to adjust for your exact width and depth.

Crusher run (also called quarry process or road base) is the best all-around choice — it contains a mix of crushed stone and stone dust that compacts into a firm, stable surface. Crushed limestone and crushed granite are also excellent. Avoid pea gravel, river rock, and smooth stones for vehicle areas — they don't compact and scatter badly.

Four inches is the minimum for residential driveways with regular car use. Six inches is better for long-term durability or if your soil is soft. Eight inches is recommended for trucks, RVs, and heavy equipment. For best results, split this into two or three compacted layers rather than a single deep pour of loose gravel.

A standard dump truck carries 10–14 tons of gravel per load. A tri-axle dump truck can carry up to 16 tons. Smaller "half-loads" may be available for 5–7 ton orders. Always confirm with your supplier — delivery capacity determines how many trips you need, which affects total delivery cost.

Bulk crushed stone runs $25–$50 per cubic yard depending on type and region. Pea gravel is typically $30–$55/yd³. Decorative river rock can reach $80–$120/yd³. Delivery fees add $50–$150 depending on distance. Buying in larger quantities (full truck loads) usually brings the per-yard price down significantly.

The most effective method is solid edging along both sides of the driveway — steel landscape edging, timber, concrete curb, or paver borders all work well. A 2-inch deep trench filled with the gravel edge helps contain it. Also, using angular crushed stone (not round pea gravel) reduces migration because the stones lock together when compacted.

Gravel Driveway Calculator