How to Estimate Asphalt Tonnage for Driveways, Lots, and Roads
Asphalt is ordered by the ton, but your measurements are in square feet and inches of depth - the conversion requires knowing the density of hot mix asphalt (approximately 145 lbs per cubic foot for standard HMA). Miss the tonnage and you either pay for a short load delivery or eat the cost of excess material that hardens in the truck. Either way, the margin disappears.
This guide walks through the complete sq ft → cubic ft → tons conversion chain, covers the density differences between asphalt mix types, and explains how lift thickness and compaction ratios affect your final order. To run the numbers instantly on any job, use the BidFlow Asphalt Calculator - it handles all four mix types and optional cost-per-ton pricing in one step.