Interactive planning tool

Driveway Cost Estimator

Create an itemized gravel-driveway planning estimate with local prices and site-work allowances.

Planning use only. Results depend on your measurements, local material properties and site conditions. They are not engineering approval or a contractor quote.

Method and assumptions

The tool applies the gravel volume formula, multiplies adjusted tons by your unit price, adds delivery and site allowances, then applies contingency to the subtotal. It is a planning estimate—not a bid, quote or promise of final cost.

Example and limitations

Use measured dimensions and replace defaults with supplier or local information. Density, material names, truck payloads, prices and requirements vary. Round ordering quantities only after confirming how the supplier sells and delivers material.

Sources and related guidance

Methods follow basic volume arithmetic and general unpaved-road principles. Review FHWA maintenance resources, local road-authority requirements and manufacturer data. See our sources methodology, drainage guide and printable project brief.