Driveway tons = area × compacted depth × supplier density after consistent unit conversion. Calculate each aggregate layer separately when base and surface courses use different materials.
For each driveway layer, calculate compacted cubic yards from area and depth, multiply by the supplier's verified tons-per-yard conversion, then add explicit placement allowance and delivered-price components.
Published: September 28, 2026
Last reviewed: September 28, 2026
Published by BuildYard. The guide reflects BuildYard's calculation methodology and editorial standards and does not replace project-specific professional advice.
Area × compacted depth gives compacted volume for that layer.
Do not average different base and surface depths into one material line.
Tons = cubic yards × verified tons per cubic yard, or volume × density with consistent units.
Supplier aggregate density varies by source, gradation, and moisture.
Separate geometric need from compaction, grading loss, and contingency.
Avoid hiding every uncertainty inside one unexplained waste percentage.
Material cost = ordered tons × quoted price per ton, plus freight and minimum-load charges where applicable.
Confirm truck capacity and delivery access with the supplier.
Gravel Calculator estimates gravel cubic yards, tons, and truck loads for paths, pads, drainage zones, and general aggregate placement.
Open calculator →EarthworkExcavation Calculator estimates bank volume, loose volume, weight, and truck loads for general rectangular excavations and haul planning.
Open calculator →Estimate drainage gravel from trench dimensions, pipe displacement, installed stone depth, density, and delivery rounding.
Read guide →EarthworkEstimate trench backfill from excavation volume minus pipe or structure displacement, bedding, imported fill, and compaction allowance.
Read guide →Gravel & stoneUnderstand gravel volume, bulk density, tons, compacted depth, waste, and supplier conversions before estimating aggregate for a driveway, pad, or path.
Read guide →Tonnage uses an illustrative 1.4 tons/yd³ input; replace it with the actual quarry/supplier conversion.
| Step | Calculation | Result |
|---|---|---|
| Volume | 1200×(4÷12) | 400 cu ft |
| Cubic yards | 400÷27 | 14.81 yd³ |
| Illustrative tons | 14.81×1.4 | 20.73 tons |
| Cost | Ordered tons×quote | Supplier-specific |
Current manufacturer data, supplier specifications, drawings, field measurements, applicable codes, permit requirements, and qualified professional guidance can take priority over a general-purpose planning estimate.