To estimate gravel for a driveway, you need the driveway area and the planned material depth. From there, volume can be converted to cubic yards and then to approximate tons.
Measure length and width
For a rectangular driveway, multiply length by width to get square feet. For irregular areas, break the driveway into simpler shapes and add their areas.
Choose the planned depth
Depth depends on whether you are refreshing the surface or building a larger section of the driveway structure. Confirm the appropriate layer design for the site before ordering.
Calculate cubic yards and tons
Enter area, depth and material into the Gravel Calculator. The tool estimates cubic yards first and then applies an approximate material-density factor to estimate tons.
Add a practical allowance
Compaction, uneven subgrade and field measurements can create differences between calculated and delivered volume. Use the calculator's waste setting as a planning buffer, then verify with the supplier.
Confirm supplier density
Real aggregate density changes with gradation and moisture. The calculator is a planning tool; the supplier's conversion for the exact product should control the final order.
Connect quantity to cost
Once you know the likely tons or yards, read Gravel Driveway Cost and compare delivery and preparation costs in addition to material.
Frequently asked questions
What measurements do I need for driveway gravel?
You need the surface area and the planned material depth.
Why does the calculator show both yards and tons?
Dimensions produce volume, while many aggregate suppliers sell by weight.
Should I order exactly the calculated tonnage?
Verify the field measurements, design depth, compaction needs and supplier conversion before placing the final order.