Gravel Driveway Cost Calculator
Turn driveway length, width and chosen gravel layer depth into cubic yards, and keep delivery, placement and preparation costs independently editable.
Continue your project estimate
Calculate gravel quantity first →Connect driveway volume with the supplier billing unit
A gravel driveway is usually planned from area and compacted depth, while suppliers may sell aggregate by ton or by cubic yard. Delivery distance, minimum loads, grading and base preparation can also be separate costs.
Start with the quantity from the gravel calculator, then convert it only with supplier-provided density or load information when your quote uses a different unit. Put delivery, grading or geotextile into fixed extras if those items are priced outside the aggregate rate.
- Use the planned compacted depth, not a generic driveway thickness.
- Match the calculator unit to the supplier quote before multiplying rates.
- Keep delivery and grading visible if they are not included in the aggregate price.
Gravel driveway volume depends on layer depth
A driveway's surface square footage is not enough to determine how many cubic yards of aggregate you need. Volume depends on the chosen layer depth. Calculate square feet from length times width, convert depth in inches into feet and divide the resulting cubic feet by 27 for cubic yards. The tool shows both the measured-area quantity and an adjusted volume if you enter an additional material allowance.
Depth is a project specification, not a universal setting. A finished gravel driveway may use multiple graded layers, separate subbase material and compaction requirements. This one-layer estimator applies to the selected gravel layer only. Ask your supplier whether their quantity is delivered loose, spread or compacted, since these may not be interchangeable measurements. We do not silently turn cubic yards into tons using an unverified density.
Worked gravel driveway example
For a 30-by-20-foot driveway, the area is 600 square feet. At a selected 4-inch layer depth, the geometric volume is approximately 7.41 cubic yards. With 10 percent additional material, the ordering estimate is approximately 8.15 cubic yards. An example supplier rate of $50 per cubic yard gives $407.41 of gravel. With illustrative labor of $1.50 per square foot, plus $150 delivery, $200 excavation and $75 edging, the project estimate becomes $1,732.41. These are hypothetical inputs, not local price claims.
How to compare supplier quotes
Ask which aggregate size and grading are supplied, whether the delivery fee includes unloading, what quantity is included, whether a minimum-load charge applies and how site access affects placement. If your supplier quotes by ton instead, verify a product-specific bulk density and use the Gravel Calculator to estimate weight; do not assume one density for all gravel. Compaction, drainage and any geotextile or prepared base should be addressed separately where relevant.
If the proposed driveway uses concrete or asphalt instead of gravel, compare the scope using the Concrete Driveway Calculator or Asphalt Driveway Calculator. Those surfaces need different quantities and construction methods.