Gravel Calculator
Calculate exactly how much gravel you need for driveways, paths, and landscaping projects. Get volume, weight, bag counts, and cost estimates -- free and private.
Gravel Calculator
Vehicle-bearing surface requiring 50mm depth minimum.
Versatile aggregate for driveways, paths, and general landscaping.
No results yet
Enter your details above and click Calculate to see your results.
How It Works
Enter Your Dimensions
Choose your project type and area shape, then enter length, width, and depth. The calculator supports rectangular, circular, and L-shaped areas in both metric and imperial units. Select your gravel type so the density calculation matches the material you plan to order.
Adjust Settings
Fine-tune with compaction density if your gravel will be rolled or tamped, and set the waste factor between 5% and 10% to account for spillage, uneven ground, and settling. Enter your supplier's price per tonne and delivery fee for a personalised cost estimate.
Get Your Results
Hit Calculate to see results in cubic metres, cubic yards, tonnes, and number of bags (25 kg and 850 kg bulk). The cost estimator shows both a market range and your custom price. Export a PDF for your records or to share with your supplier.
Why Use This Calculator
Accurate Estimates
Density-specific calculations for six gravel types with compaction factors and waste allowances.
Instant Results
Get volume, weight, bag counts, and cost estimates in seconds -- no sign-up required.
Private by Design
All calculations run in your browser. Nothing is sent to a server or stored remotely.
PDF Export
Download a clean summary of your results for ordering, quoting, or project records.
All results are estimates only. Always order 5-10% extra gravel to account for waste, uneven ground, and compaction. This calculator does not provide professional advice.