Gravel Calculator
Estimate gravel for driveways, walkways, garden beds and base layers. Enter the area dimensions, depth, bulk density and price to estimate volume, weight and cost.
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How the gravel calculator works
Estimate gravel for driveways, walkways, garden beds and base layers. Enter the area dimensions, depth, bulk density and price to estimate volume, weight and cost.
Volume = length × width × depth. Estimated weight = volume × bulk density. Actual delivered weight can vary with moisture and aggregate type. The calculator is designed to give a useful first-pass material estimate while keeping the assumptions visible. For a purchase, compare the result with the product packaging or supplier quotation.
Common search terms for this tool include gravel calculator, gravel volume calculator, how much gravel do I need, gravel tonnage calculator. The wording is included naturally so the page answers the same questions people ask when planning a project.
Frequently asked questions
How deep should gravel be?
Use the depth specified by your project or build-up. Different applications need different depths.
What density should I use?
Use the supplier's stated bulk density when possible. Gravel type, moisture and compaction can change the actual weight.
Can I estimate driveway gravel?
Yes. Use the full driveway area and planned layer depth.
Why does gravel weight vary?
Aggregate size, moisture, source material and compaction can affect bulk density.