Use our free gravel calculator to find exactly how much gravel you need for your driveway, pathway, landscaping, or sub-base project. Enter your dimensions below to get instant results in tons, cubic yards, and estimated cost — with 2026 pricing for crushed stone, pea gravel, river rock, and crusher run.
Gravel Driveway Installation Checklist
- ☐ Calculate total tons needed for all layers (add 15%)
- ☐ Order geotextile landscape fabric
- ☐ Purchase or rent plate compactor
- ☐ Install edging along all driveway borders
- ☐ Excavate 8-12 inches below finished grade
- ☐ Lay geotextile fabric on excavated surface
- ☐ Add and compact 4-6 inch base layer (#3 or #4 stone)
- ☐ Add and compact 2-3 inch middle layer (#57 stone)
- ☐ Add and compact 2-3 inch surface layer (crusher run)
- ☐ Grade surface for 2% drainage slope away from structures
Gravel Driveway Cost-Saving Tips
- Buy in bulk: Full truckloads (10-14 tons) cost 15-25% less per ton than partial
deliveries.
- Use crusher run for surface: Crusher run ($15-28/ton) compacts better and costs less
than decorative gravel.
- Install edging immediately: Edging prevents gravel spread, reducing annual top-up costs
by 50%.
- Source locally: Gravel from a nearby quarry costs $5-15/ton less than from distant
suppliers.
- DIY installation: Gravel driveways can be DIY-installed with a rented skid steer,
saving $1-2/sq ft in labor.
Gravel Driveway Installation Steps
- Mark boundaries: Use stakes and string to mark driveway edges. Consider width (minimum
10 ft, 12 ft preferred).
- Excavate: Remove 8-12 inches of topsoil and organic material. Grade for 2% drainage
slope.
- Install fabric: Lay geotextile landscape fabric to prevent weed growth and soil
migration.
- Install edging: Metal, plastic, or timber edging keeps gravel contained and reduces
maintenance.
- Add base layer: 4-6 inches of large stone (#3 or #4) for drainage and stability.
Compact with plate compactor.
- Add middle layer: 2-3 inches of #57 stone. Compact thoroughly.
- Add surface layer: 2-3 inches of crusher run. Grade and compact for a firm, smooth
surface.
Gravel Driveway Cost by Size
| Driveway Size |
Tons Needed |
Material Cost |
Installed Cost |
| Small (10x20 ft) |
3-5 tons |
$75-175 |
$200-500 |
| Medium (12x40 ft) |
8-12 tons |
$200-420 |
$480-1,200 |
| Large (20x50 ft) |
17-25 tons |
$425-875 |
$1,000-2,500 |
| Long rural (12x200 ft) |
40-60 tons |
$1,000-2,100 |
$2,400-6,000 |
Gravel and Aggregate Calculator
Our gravel calculator helps you determine the exact amount of gravel needed for driveways, walkways, patios,
drainage, and landscaping projects. Different gravel types serve different purposes — choosing the right size
and type ensures project success.
Gravel Types and Best Uses
- Pea Gravel (1/4–1/2 inch): Smooth, rounded stones ideal for walkways, patios, and
decorative landscaping. Comfortable to walk on but shifts under tires — not recommended for driveways. Cost:
$30-50 per ton.
- Crushed Stone #57 (3/4 inch): Angular, self-compacting aggregate — the most popular
choice for driveways and base layers. Excellent drainage and stability. Cost: $25-40 per ton.
- Crushed Stone #411 (3/4 inch with fines): A blend of stone and stone dust that compacts
tightly. Perfect for driveway top layers and road base. Cost: $20-35 per ton.
- River Rock (1–3 inches): Smooth, rounded stones for drainage channels, dry creek beds,
and decorative borders. Does not compact — not suitable for driveways. Cost: $50-100 per ton.
- Crusher Run (#21A): A mix of crushed stone and stone dust, 0-3/4 inch. The best base
material for driveways and under asphalt. Compacts to a very dense, stable surface. Cost: $20-30 per ton.
Recommended Gravel Depths
- Driveway Base: 4-6 inches of crusher run or #57 stone
- Driveway Top Layer: 2-3 inches of #411 or #57 stone
- Walkway/Patio: 2-3 inches of pea gravel or crushed stone
- Drainage: 6-12 inches of river rock or #57 stone
- French Drain: 6-8 inches of washed #57 stone wrapped in filter fabric
- Under Asphalt: 6-8 inches of crusher run compacted in lifts
Gravel Quantities
Use these formulas and reference data to calculate exactly how much gravel you need:
Gravel Weight by Type
- Crushed Stone: ~1.4 tons per cubic yard (2,800 lbs)
- Pea Gravel: ~1.3 tons per cubic yard (2,600 lbs)
- River Rock: ~1.35 tons per cubic yard (2,700 lbs)
- Crusher Run: ~1.5 tons per cubic yard (3,000 lbs) — heavier due to fine particles
Quick Calculation Formula
Tons = (Length × Width × Depth in feet) ÷ 27 × Weight per cubic yard in tons
For standard crushed stone at 3 inches deep: Tons = Square Feet × 0.0156
Always add 10-15% extra for compaction and settling. Gravel compacts by 20-30% when first applied, so you
need more volume than the final depth suggests.
Typical Driveway Gravel Quantities
- Single car (10×20 ft): 1.5 cubic yards / 2.1 tons at 4" depth
- Two car (20×20 ft): 3.0 cubic yards / 4.2 tons at 4" depth
- Standard (12×40 ft): 3.6 cubic yards / 5.0 tons at 4" depth
- Large (20×50 ft): 7.4 cubic yards / 10.4 tons at 4" depth
How to Calculate Gravel Needed (Step-by-Step)
Calculating how much gravel you need is straightforward. Follow these steps to get an accurate estimate:
Step 1: Measure Your Area
Measure the length and width of the area to be covered in feet. For irregular shapes, break the area into rectangles and calculate each section separately.
Step 2: Determine Depth
Choose the appropriate gravel depth for your project:
- Gravel driveway: 46 inches total (base + surface layers)
- Walkway or path: 2–3 inches
- Landscaping cover: 2–3 inches
- French drain fill: 612 inches
- Under-slab base: 4–6 inches
Step 3: Calculate Volume
Cubic Yards = (Length ft × Width ft × Depth in.) ÷ (12 × 27)
Tons = Cubic Yards × 1.4 (for standard crushed stone)
Example gravel driveway calculator: A 12 50 ft driveway at 4 inches deep:
Cubic yards = (12 50 4) 324 = 7.4 yd
Tons = 7.4 × 1.4 = 10.4 tons
Cost at $25/ton = $260 (material only)
Step 4: Add Waste Factor
Always add 1015% to your calculated amount for compaction, settling, and waste. Gravel compacts by 2030% when first installed, so order more than the finished depth suggests.
Gravel Driveway Cost Calculator (2026 Prices)
A gravel driveway is one of the most affordable driveway options. Here are the complete costs for gravel driveway installation in 2026:
Gravel Driveway Material Costs
| Gravel Type |
Cost/Ton |
Cost/Cubic Yard |
Best Use |
| Crusher Run (#21A) |
$20$30 |
$28$45 |
Best driveway surface |
| Crushed Stone #57 |
$25$40 |
$35$56 |
Drainage, middle layer |
| Pea Gravel |
$25$50 |
$33$65 |
Decorative, walkways |
| River Rock |
$50$100 |
$68$135 |
Landscaping, drainage |
| Decomposed Granite |
$30$50 |
$42$68 |
Paths, patios |
| #3 / #4 Base Stone |
$18$28 |
$25$42 |
Base layer, fill |
Total Gravel Driveway Cost (Materials + Installation)
| Driveway Size |
Sq Ft |
Tons (6" total) |
Material Only |
DIY Cost |
Pro Installed |
| Single car (1020) |
200 |
4.5 |
$110$180 |
$200$400 |
$400$800 |
| Standard (1240) |
480 |
10.8 |
$270$430 |
$480$960 |
$960,920 |
| Two car (2020) |
400 |
9.0 |
$225$360 |
$400$800 |
$800,600 |
| Large (2050) |
1,000 |
22.5 |
$560$900 |
,000$2,000 |
$2,000$4,000 |
| Long rural (12200) |
2,400 |
54 |
,350$2,160 |
$2,400$4,800 |
$4,800$9,600 |
Costs include excavation, grading, geotextile fabric, base stone, surface gravel, and compaction. DIY saves 4050% by handling labor yourself.
Gravel vs. Asphalt vs. Concrete Driveways
| Feature |
Gravel |
Asphalt |
Concrete |
| Cost/sq ft |
$3 |
$3$7 |
$6$12 |
| Lifespan |
Indefinite (with top-up) |
1525 years |
2540 years |
| Maintenance |
Annual top-up |
Sealcoat every 35 yrs |
Minimal |
| DIY-friendly |
|
|
|
| Drainage |
Excellent (permeable) |
Poor (runoff) |
Poor (runoff) |
| Install time |
12 days |
12 days |
37 days |
Gravel is the clear winner for budget-conscious homeowners, rural properties, and DIY projects. Use our Driveway Cost Calculator to compare materials for your specific project.
Gravel Coverage Chart (Tons Per Square Foot by Depth)
Use this quick-reference chart to estimate how much gravel you need based on area and depth:
| Depth |
Coverage (sq ft/ton) |
Tons per 100 sq ft |
Tons per 500 sq ft |
Tons per 1,000 sq ft |
| 2 inches |
~100 |
1.0 |
5.0 |
10.0 |
| 3 inches |
~67 |
1.5 |
7.5 |
15.0 |
| 4 inches |
~50 |
2.0 |
10.0 |
20.0 |
| 6 inches |
~33 |
3.0 |
15.0 |
30.0 |
| 12 inches |
~17 |
6.0 |
30.0 |
60.0 |
Based on average crushed stone density of 1.4 tons/cubic yard. Add 1015% for compaction and waste.
Gravel Delivery: What to Know Before You Order
- Minimum order: Most quarries require 13 ton minimum. Some require full truckloads (1014 tons).
- Delivery cost: $50$150 flat fee for local delivery (under 15 miles). Add $510/mile beyond that.
- Bulk vs. bags: Bulk gravel costs $20$50/ton. Bagged gravel from hardware stores costs $46 per 0.5 cu ft bag ($200$300/ton equivalent). Always buy bulk for projects over 1 ton.
- Where to dump: Trucks need at least 12 ft wide, 20 ft long access. Specify exactly where to dump moving dumped gravel by hand is backbreaking work.
- Best time to order: Late fall through early spring offers 1020% lower prices due to reduced demand.
Frequently Asked Questions About Gravel Calculation
How to calculate gravel needed?
To calculate gravel needed, multiply length × width × depth (in feet) to get cubic feet, then divide by 27
to get cubic yards. For tons, multiply cubic yards by 1.4 (gravel weighs approximately 2,800 lbs per cubic
yard). Our gravel calculator does this automatically.
How much gravel do I need for my driveway?
For a gravel driveway, you need 4-6 inches of gravel. A typical 800 sq ft driveway at 4 inches deep
requires about 10 cubic yards or 14 tons of gravel. Use 3/4-inch crushed stone for the top layer and larger
stone for the base.
How many tons of gravel per cubic yard?
There are approximately 1.4 tons of gravel per cubic yard. Gravel weighs 2,700-2,900 lbs per cubic yard
depending on type. Crushed stone is heavier (1.5 tons/yd³) while pea gravel is lighter (1.3 tons/yd³).
What is the cost of gravel per ton?
Gravel costs $15-75 per ton depending on type. Crushed stone is $20-30/ton, pea gravel $25-40/ton, river
rock $40-75/ton, and decomposed granite $30-50/ton. Delivery adds $50-150 depending on distance and order
size.
How accurate is this calculator?
Our calculator uses industry-standard formulas and typical material densities to provide estimates accurate
within 5-10%. For precise project planning, always consult with a licensed contractor who can assess your
specific site conditions, local material costs, and project requirements. Add a 10-15% buffer to all
material estimates to account for waste, spillage, and irregular surfaces.
What should I look for when hiring an asphalt contractor?
When hiring an asphalt contractor, verify they are licensed and insured in your state, check references and
online reviews, get at least 3 written quotes, ask about the mix type and thickness they will use, confirm
they will properly prepare the base, ask about warranty terms (typically 1-5 years), and never pay more than
30% upfront. Avoid contractors who only accept cash or pressure you to decide immediately.
How do weather conditions affect asphalt projects?
Weather significantly impacts asphalt installation quality. Ideal conditions are temperatures above 50°F
with no rain forecast for 24 hours. Cold temperatures cause asphalt to cool too quickly, preventing proper
compaction. Rain can wash away fresh asphalt and weaken the base. High humidity can affect adhesion. Most
contractors will not work in rain or when temperatures are below 40°F. Always check the weather forecast
before scheduling your project.
What permits are required for asphalt projects?
Permit requirements vary by location and project type. New driveway installations connecting to public
roads typically require permits. Major repairs or resurfacing may also need permits. Commercial projects
almost always require permits and inspections. Contact your local building department to determine
requirements for your specific project. Unpermitted work can result in fines and complications when selling
your property.
How many tons of gravel do I need for my driveway?
To calculate gravel needed: multiply length (ft) × width (ft) × depth (inches) ÷ 12 to get cubic feet, then
multiply by the gravel density (approximately 100 lbs/ft³) and divide by 2,000 for tons. Example: 100 ft ×
12 ft × 4 inches ÷ 12 = 400 cubic feet × 100 ÷ 2,000 = 20 tons. Add 15% for compaction and waste = 23 tons.
A typical 2-car driveway (20x40 ft) at 4 inches deep needs approximately 27 tons of gravel.
What is the best gravel for a driveway surface?
The best gravel for driveway surfaces is crusher run (also called #21A or road base) — a mix of crushed
stone and stone dust that compacts into a firm, stable surface. Other good options include: #57 stone (3/4
inch clean stone, good drainage), pea gravel (decorative but shifts underfoot), and recycled concrete
(affordable, compacts well). Avoid large round river rock — it shifts and is difficult to walk on. The ideal
surface gravel has angular edges that interlock when compacted.
How often do I need to add gravel to my driveway?
Most gravel driveways need a fresh top layer every 1-3 years. Gravel is lost through: displacement from
vehicle tires (especially during turning), washing away during heavy rain, sinking into the soil below, and
spreading to the edges. Adding 1-2 inches of fresh surface gravel annually keeps the driveway in good
condition. Using edging (metal, plastic, or timber) significantly reduces gravel loss. A well-maintained
gravel driveway can last indefinitely with regular top-ups.
How do I stop gravel from washing away?
To prevent gravel washout: install proper drainage (French drains, swales) to redirect water flow, use
geotextile fabric under the gravel to prevent migration, install edging on all sides to contain gravel,
ensure proper slope (2% grade) to direct water off the driveway rather than down it, use angular crushed
stone rather than round gravel (it compacts better), and add a layer of larger base stone under the surface
gravel to improve stability.
How much does a gravel driveway cost?
A gravel driveway costs
–$3 per square foot installed, or $200–$6,000+ depending on size. A typical 12×40 ft driveway costs $480–
,920 installed with a 6-inch gravel base. Material costs are $25–$40 per ton for crushed stone, and a standard driveway needs 815 tons. Gravel is the most affordable driveway material 6080% cheaper than asphalt and 8090% cheaper than concrete. DIY installation can save 4050% on labor costs.
