Gravel Driveway Cost Calculator
Estimate gravel driveway cost from your dimensions, planned depth, stone price, delivery and site-preparation assumptions. Get cubic yards, tons and a transparent planning total.
Driveway details
Use the compacted depth specified for the layer you are estimating. A new driveway may require separate base and surface calculations.
How the gravel driveway cost calculator works
The calculator multiplies driveway length by width to find square footage. It converts the selected compacted depth into cubic yards, adds the order allowance, and applies an approximate tons-per-cubic-yard factor. The planning total combines gravel material, delivery, and the site-preparation or labor allowance you enter.
Example: 100-foot gravel driveway
A driveway measuring 100 feet long by 12 feet wide covers 1,200 square feet. At a 4-inch depth with a 10% allowance, it requires about 16.3 cubic yards. Using a planning density of 1.5 tons per cubic yard produces roughly 24.4 tons. Your final budget then depends on the supplier's price, number of deliveries, site preparation and compaction.
Costs homeowners often miss
A material-only calculation does not include every installed cost. New driveways may need excavation, geotextile fabric, a larger base stone, a separate surface course, drainage improvements, culvert work, grading and mechanical compaction. Steep sites or restricted dump-truck access can also increase labor and equipment time.
Material density and compaction
Aggregate weight varies with stone size, moisture, quarry source and gradation. Treat the built-in density as a starting point and ask the supplier for the conversion used for the exact product. The driveway gravel quantity guide explains the measurement steps.
Price per square foot
Divide the full installed estimate by the driveway area—not only the stone invoice—to compare options consistently. See the gravel driveway cost per square foot guide for scope and quote comparisons.
Frequently asked questions
How much gravel do I need for a 100-foot driveway?
A 100 × 12-foot driveway at 4 inches deep is about 14.8 cubic yards before an order allowance, or about 16.3 cubic yards with 10% added. Estimated tons depend on the exact material density.
Does this calculator include installation?
It includes the site-preparation and labor rate you enter, plus material and delivery. Add separate allowances for excavation, fabric, drainage, culverts or multiple aggregate layers when those are part of the job.
Should I order gravel by the ton or cubic yard?
Use the unit your supplier sells. Provide your dimensions and planned compacted depth, then ask the supplier to confirm its product-specific density and practical order quantity.
What depth should a gravel driveway be?
The required structure depends on soil, drainage, vehicle loads and whether you are refreshing an existing surface or constructing a new driveway. Confirm the layer design locally before ordering.
Official references and related tools
Review aggregate background information from the U.S. Geological Survey and general unpaved-road maintenance guidance from the U.S. Environmental Protection Agency. Continue planning with the Cubic Yard Calculator, Contractor Quote Comparison and Project Contingency Calculator.