Calculator
Gravel Driveway Calculator
Estimate the volume and weight of gravel needed for any driveway.
This gravel calculator estimates the volume and weight of gravel needed for a driveway, path, or base course. Enter length, width, and depth to get cubic yards (or cubic meters) and approximate tonnage.
Result
Enter your values and tap "Calculate gravel" to see your result.
How to use this calculator
Measure the area's length and width, then choose a depth — typically 4 inches (10 cm) for a base layer and another 2 inches (5 cm) for a top coat. The calculator converts dimensions into volume and weight.
How it works
This gravel calculator estimates the volume and weight of gravel needed for a driveway, path, or base course. Enter length, width, and depth to get cubic yards (or cubic meters) and approximate tonnage.
Frequently asked questions
How deep should a gravel driveway be?
A typical residential gravel driveway uses 4–6 inches of compacted base, with a 2-inch top coat. Heavy-vehicle driveways may need 8 inches or more.
How much does a cubic yard of gravel weigh?
Roughly 1.4 to 1.7 tons depending on stone size, moisture, and material. Crushed stone is heavier than rounded river gravel.
What size gravel works best for driveways?
A base layer of #3 or #4 stone with a top coat of #57 or 3/4-inch crushed stone is a common combination. Smaller stones compact better at the surface.
Do I need landscape fabric underneath?
Yes for most driveways. Fabric prevents the gravel from mixing into the soil and sinking, which extends the life of the driveway.
How do I account for compaction?
Loose gravel compresses about 10–15% once compacted. Order slightly more than the calculator's volume to allow for this.
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How to use the Gravel Driveway Calculator
Estimate the tonnes or cubic yards of gravel needed for a driveway, path, or garden area; calculate material cost before ordering; plan delivery requirements.
Example workflow
Enter the driveway length, width, and desired depth (typically 4–6 inches for driveways). The calculator returns cubic yards and approximate tonnes based on gravel density.
Common search topics
- gravel quantity
- driveway cubic yards
- tons of gravel
- crushed stone estimate
Regional use
Rates, costs, codes, and measurement standards vary by location. This calculator supports common use cases in:
- Gravel Driveway Calculator — United States
- Gravel Driveway Calculator — Texas
- Gravel Driveway Calculator — California
- Gravel Driveway Calculator — Florida
- Gravel Driveway Calculator — Georgia
- Gravel Driveway Calculator — Arizona
- Gravel Driveway Calculator — Canada
- Gravel Driveway Calculator — United Kingdom
- Gravel Driveway Calculator — Australia
Frequently asked questions
How deep should a gravel driveway be?
A typical residential driveway uses 4 inches (10 cm) of compacted gravel as a minimum. High-traffic or heavy-vehicle driveways benefit from 6 inches. A base layer of larger crushed stone beneath a finer top layer improves durability.
What type of gravel should I use for a driveway?
Crushed stone (¾-inch or #57 stone) compacts well and resists displacement. Pea gravel is attractive but tends to scatter. Recycled concrete is a cost-effective and sustainable alternative.
How many tons of gravel are in a cubic yard?
Gravel weighs approximately 1.4 tonnes (1.5 US tons) per cubic yard, depending on moisture content and stone type. The calculator uses a standard density for the conversion.
Can I use this for paths and garden areas?
Yes. Enter any rectangular area dimensions. For irregular shapes, break the area into rectangles and run the calculation for each section separately.
Do I need a permit to install a gravel driveway?
Permit requirements vary by municipality. Some areas regulate drainage and surface water runoff from driveways. Check with your local planning or building department before starting.
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People also ask
How much does a gravel driveway cost per square foot?
Material costs typically run $0.50–$1.50 per square foot for the gravel itself, depending on stone type and local market. Crushed limestone and recycled concrete are usually cheapest; decorative river rock or pea gravel is more expensive. Delivery and spreading add $50–$200 depending on distance and quantity. Professional installation including grading, edging, and compaction typically runs $1.25–$3.00 per square foot total installed.
How often does a gravel driveway need to be replenished?
Gravel settles and displaces through use and weather — most residential driveways need a 1–2 inch replenishment layer every 3–5 years. Driveways with heavy vehicles, steep grades, or poor drainage need more frequent top-ups. Edging (plastic, metal, or concrete borders) significantly reduces lateral gravel loss and extends the interval between replenishments.
What is the difference between crushed stone and gravel?
Crushed stone is mechanically broken rock with angular edges that interlock and compact well — preferred for driveways. Natural gravel is rounded river or pit stone that does not compact as tightly and tends to scatter under vehicle tires. For driveway use, #57 crushed stone (¾ inch) or crusher run (mixed fines and stone) outperforms rounded pea gravel in both stability and longevity.
Real-world scenarios
Installing a two-layer driveway system
Run the calculator twice: once for a 4-inch base layer of #3 or #4 large crushed stone, then again for a 2-inch surface layer of #57 or ¾-inch crushed stone. The base layer stabilizes the ground and allows drainage; the surface layer provides the finished driving surface. Adding the two outputs gives your total material order. Order the base layer first and let it settle before applying the surface coat.
Comparing bulk delivery vs. bagged gravel
Bulk delivery (by the ton) is cost-effective for anything over about 2 tons — roughly 1.4 cubic yards. Below that threshold, bagged ½ cubic foot bags from a home center may be cheaper when delivery fees are included. The calculator output in cubic yards and tons lets you compare quotes from bulk suppliers directly against bagged equivalents at per-bag prices.
Gravel for a parking pad or RV storage area
A 12×24-foot parking pad at 6-inch depth needs roughly 1.78 cubic yards (about 2.7 tons). For RV or boat storage, use 6–8 inches of compacted base material to handle the weight. Some municipalities require a permit for impervious surface additions — confirm before installation, as gravel is often classified differently from concrete or asphalt for drainage compliance purposes.