Gravel Driveway Calculator
How it Works
01Driveway Size
Length × width in feet. Typical single car 10 × 20, two-car 20 × 30, rural 12 × 100.
02Base + Top Layer
4" #411 crusher run base + 2–3" of 3/4" crushed stone top = the 20-year driveway.
03Single-Layer Budget
Quarry process alone works for light-use drives — cheaper but 5-yr lifespan.
04Tons & Cost
Full tons, yards, truck count, and delivered cost for each layer + total.
What is a Gravel Driveway Calculator?
The calculator answers every common search in one tool: gravel driveway cost, figuring gravel for driveway, cost to install gravel driveway, what size gravel for driveway, driveway gravel size chart, and diy gravel driveway. You get total cost, per-layer breakdown, truckload count, and a comparison of the cost by the ton vs. the cubic yard — priced for 2025 US averages.
How the Gravel Driveway Calculator Works
Gravel Driveway Formula
Per-layer volume: Length (ft) × Width (ft) × Depth (ft) = ft³
- Convert to cubic yards: ft³ ÷ 27
- Convert to tons: ft³ × density (lb/ft³) ÷ 2000
- #411 crusher run ≈ 110 lb/ft³
- 3/4" crushed stone ≈ 100 lb/ft³
For a classic two-layer driveway, calculate both layers separately and add. This calculator does it all — with a built-in 10% waste factor.
Example: 12 × 50 ft Rural Gravel Driveway
Area = 12 × 50 = 600 ft². Two-layer driveway with 4" of #411 crusher run base + 2" of 3/4" crushed stone top:
- Base layer (4" crusher run): 600 × 0.333 × 1.1 = 220 ft³ = 8.15 yd³ ≈ 12.1 tons @ $35/ton = $424
- Top layer (2" 3/4" crushed stone): 600 × 0.167 × 1.1 = 110 ft³ = 4.07 yd³ ≈ 5.5 tons @ $38/ton = $209
- Total: 17.6 tons ≈ $633 delivered, plus ~$100–$200 delivery fee
Driveway Gravel Size Chart (What to Buy)
Every quote has confusing numbers like "#411" and "#57" — here is what they actually mean for your driveway:
- #411 Crusher Run: 3/4" minus blend with stone dust. This is your BASE layer. Compacts like concrete.
- 3/4" Crushed Stone: 3/8"–3/4" angular rock, may include fines. This is your TOP layer. Rides smooth.
- #57 Stone: Clean 1" washed rock, no fines. Great for drainage, NOT for driveway surface (shifts).
- #2 Stone: 2–3" chunks. Use only for soft/muddy subgrade under a real driveway build.
- Quarry Process / Dense Grade: Works as a single-layer driveway for light use. 5-year lifespan.
How Much Does a Gravel Driveway Cost? (2025 US Pricing)
DIY gravel driveway material costs by size (two-layer build, 2025 averages):
| Driveway Size | Total Tons | Material Cost |
|---|---|---|
| 10 × 20 ft (single car, 200 ft²) | ~6 tons | ~$220 |
| 16 × 20 ft (two-car, 320 ft²) | ~9 tons | ~$340 |
| 20 × 30 ft (two-car long, 600 ft²) | ~17 tons | ~$630 |
| 12 × 50 ft (rural, 600 ft²) | ~17 tons | ~$630 |
| 12 × 100 ft (long country drive, 1200 ft²) | ~35 tons | ~$1,260 |
Add $75–$200 per truckload for delivery, and $500–$2,500 for professional installation if you are not spreading it yourself.
DIY Gravel Driveway — Step by Step
A DIY gravel driveway takes a weekend with two people:
- Grade the subgrade: Remove topsoil, level with a slight crown (1\" per 4 ft of width) to shed water.
- Lay weed-blocking fabric (optional): Blocks weeds growing up through the gravel. $0.50–$1/ft².
- Spread the base: Dump and rake 4\" of #411 crusher run. Most rakes work — a landscape rake is best.
- Compact: Rent a 200-lb plate compactor ($80/day). Go over the base 3 times in perpendicular passes.
- Spread the top layer: Dump and rake 2\" of 3/4\" crushed stone. Crown slightly for drainage.
- Compact again: One pass over the top layer. The driveway is ready to drive on immediately.
Why You Should Never Skip the Base Layer
The #1 reason DIY gravel driveways fail: skipping the #411 crusher run base. A single-layer driveway of just pea gravel or 3/4" crushed stone on raw dirt will:
- Rut under the first wet season
- Wash out of drainage paths
- Sink into soft spots
- Need resurfacing every 2–3 years
Spending an extra $200–$400 on crusher run base for a typical driveway adds 15+ years of life. It is the single highest-leverage upgrade in driveway construction.
Who uses a gravel driveway calculator?
Driveway Gravel Size Chart & Recommendations
| Layer | Recommended Material | Depth | Why |
|---|---|---|---|
| Base | #411 Crusher Run | 4–6" | Dense-graded with fines — compacts into a hard, stable foundation. |
| Base (budget) | Recycled Crushed Concrete | 4–6" | 70% the performance of #411 at 80% the cost. |
| Top | 3/4" Crushed Stone | 2–3" | Angular rock that locks together, sheds water, good ride surface. |
| Top (alt) | #57 Clean Stone | 2–3" | Cleaner look but shifts more than 3/4". |
| Avoid as driveway top | Pea Gravel | — | Smooth round stones shift under tires. Good for paths, not drives. |
Driveway depth guide: 6" total for residential car, 8" for truck/SUV, 10" for RV pads, 12"+ for farm/commercial lanes.
Key Takeaways
This free gravel driveway calculator answers every "how much gravel do I need for my driveway" question at once — tons, yards, dollar cost, and truck count. Enter your driveway dimensions now and get a contractor-grade estimate.
Gravel Driveway Calculator FAQs
How much gravel do I need for a driveway?
How much does a gravel driveway cost in 2025?
What size gravel is best for a driveway?
How deep should a gravel driveway be?
How do I figure out how many tons of gravel for a driveway?
Cost to install a gravel driveway per foot?
Can I install a gravel driveway myself?
How much does one truckload of gravel cover for a driveway?
How long does a gravel driveway last?
How do I fix a gravel driveway that has washed out?
Disclaimer
Estimates based on typical US pricing and standard aggregate densities. Actual costs vary significantly by region, quarry distance, delivery fees, and local labor rates. Always get at least three local quotes before committing.