Gravel Calculators
Gravel Cost Calculator
Turn your project size into a dollar estimate using your supplier's actual rate. For quantities first, the free gravel calculator works out volume and tonnage in one pass. One tool for every job: a single layer for paths, patios, and beds, or switch to Driveway mode to price a compacted base and top layer separately.
About this calculator
Accuracy and limitations
Delivery, minimum-load fees, taxes and labor are not included. Prices vary enormously by region, which is why the rate is always your input.
When this calculator may not be appropriate
This tool is for project planning only. It is not intended for engineering design, official or legal documentation, regulatory filings, or contractor bids without quantities verified with a supplier or qualified professional.
Why trust this tool?
- The formula and the density figure are shown with every result, so you can check the math yourself.
- Built and reviewed by ianwelkins, who maintains every tool on this site.
- The full method is published on the methodology page.
How the cost estimate works
The tool computes your project's volume (length × width × depth), converts it to tons using the selected material's density, then multiplies by your price. The formula line in the result shows every step so you can check it:
Cost = Tons × Price per ton — or Cost = Yards × Price per yard, depending on which rate your supplier quoted. In Driveway mode both layers are computed independently — volume, density, and price each — and summed.
Worked example (single layer): a 20×10 ft area at 3 inches deep is 1.85 yd³ ≈ 2.62 tons of gravel. At $45 per ton, that's about $118 of material. Driveway example: a 12×50 ft drive with a 4-inch crusher-run base ($40/ton) plus a 3-inch #57 top ($45/ton) works out to roughly $475 + $338 ≈ $813.
Bag vs bulk (pea gravel): that same walkway is about 50 bags — at $6 a bag roughly $300, while bulk at $60/ton is around $84. Past roughly 20–30 bags, bulk wins almost everywhere; the bag count is shown by the pea gravel calculator.
Related tools & guides
Gravel Driveway Calculator
The quantity-focused two-layer tool — volumes without pricing.
Yards to Tons Gravel Calculator
Just the tonnage, without the pricing — with a yards-to-tons density table.
Gravel Calculator
The general tool with shapes, materials, grading codes, and cost.
Pea Gravel Calculator
Quantities and bag counts at pea gravel depths.
Gravel cost FAQ
How much does gravel cost?
It depends almost entirely on where you live and what you're buying — which is why this calculator has no built-in price. Ask a local quarry or landscape supply for their per-ton or per-yard rate, enter it above, and you'll get a real estimate instead of a misleading national average.
Should a driveway's base and top layers be priced separately?
Usually yes. The base layer (typically crusher run) and the top layer (typically a clean stone like #57) are often different products at different prices. Switch the calculator to Driveway mode to price each layer at its own rate and see the combined total.
Is it cheaper to buy gravel in bags or bulk?
Bulk is almost always cheaper per volume past roughly 20–30 bags (about half a cubic yard). The result shows your bag count — multiply it by the per-bag price and compare against the bulk estimate plus any delivery minimum.
Does the estimate include delivery?
No. The estimate covers material only, at the rate you enter. Delivery charges, fuel surcharges, and minimum-load fees are set per supplier — ask for the delivered price per ton and enter that if you want those included.
What costs does the estimate not include?
Delivery, site preparation and grading, edging, geotextile fabric, drainage work, and labor if you hire it out. For many projects those items together rival the material cost, so get full quotes before budgeting.
Why doesn't the calculator use a national average price?
Because gravel pricing swings wildly by region — sometimes doubling between two counties — a national average would produce misleading budgets. Your supplier's quoted rate is the only number worth calculating with.