Gravel Driveway Cost Calculator
Estimate materials, cost, and build time for your gravel driveway project.
Driveway Dimensions
Gravel Type & Pricing
Additional Options
Cost Breakdown
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⏱ Time Estimate
🛒 Materials Shopping List
*Prices are US averages. Always get 2–3 local quotes for bulk materials.
How to Use This Gravel Driveway Cost Calculator
Enter your driveway's length and width in feet, choose your gravel depth using the slider, and select your gravel type. Hit Calculate to see your estimated material quantities, total cost, and a ready-to-use shopping list. Adjust delivery fees and optional labor costs to match your local situation.
Why This Matters
A properly installed gravel driveway is one of the best value improvements a homeowner can make. At $1–$3 per square foot for DIY vs. $3–$7 professionally installed, a standard 12×100 ft driveway (1,200 sq ft) might cost $1,200–$3,600 in materials alone. Without calculating ahead of time, most people either order too little — causing delays and extra delivery fees — or order far too much, wasting hundreds of dollars on gravel they haul away for years.
Common scenarios where this tool saves money: a rural homeowner extending a 200-foot lane to a new garage, a suburban family redoing an aging asphalt patch with lower-maintenance crushed stone, or a contractor quickly quoting a client before the site visit. Knowing you need 18 tons vs. 32 tons changes both your material budget and the truck rental you need to schedule.
How It's Calculated
The core formula is:
- Volume (cu ft) = Length × Width × (Depth ÷ 12)
- Volume (cu yards) = Volume ÷ 27
- Tons needed = Cubic yards × 1.4 (gravel averages ~1.4 tons/cu yd)
- Add 10% for compaction and waste
- Total cost = Tons × price/ton + delivery + fabric + optional labor
Multiple layers (base + top coat) are calculated independently and combined. Landscape fabric is priced at $0.15/sq ft — typical for commercial-grade weed barrier.
Tips & Common Mistakes
- Don't skip the base layer. A 4-inch compacted base of #57 stone or road base gravel is what prevents rutting. Many DIYers skip this and regret it after the first winter.
- Measure twice. Driveway width varies — measure at the widest point if it flares near the street or garage.
- Call before you dig. Use 811 (US) to mark utilities before any excavation, even shallow grading.
- Compact between layers. Renting a plate compactor ($80–$120/day) pays for itself in longevity. Don't pour top gravel on loose base.
- Account for crown pitch. A slight center-high crown (2–3%) improves drainage and extends driveway life significantly.
Frequently Asked Questions
How deep should a gravel driveway be?
For a new driveway with no existing base, plan for 8–10 inches total: 4–6 inches of compacted base material (like #21A or road base) topped with 2–4 inches of finish gravel. If you already have a gravel base in decent shape, 2–3 inches of top dressing is often enough to refresh it.
How many tons of gravel do I need per square foot?
A good rule of thumb: 1 ton of gravel covers about 80–100 sq ft at 4 inches deep, or 160–200 sq ft at 2 inches deep. For precision, use this calculator — it factors in compaction waste and converts cubic yards to tons automatically.
What's the cheapest type of gravel for a driveway?
Recycled concrete or crushed asphalt is typically the most affordable at $18–$25/ton and actually performs very well as a base material. Caliche and road base gravel come in second at $25–$35/ton. Avoid decorative options like river rock for high-traffic driveways — they shift and scatter easily.
Do I need landscape fabric under gravel?
Landscape fabric helps suppress weeds and prevents gravel from sinking into soft soil — especially useful in clay-heavy areas. It's not always necessary if your drainage is good and you're using a coarse base layer, but for most residential driveways it's a worthwhile $150–$300 addition that saves ongoing maintenance.