Asphalt Calculator
Estimate how many tons of hot mix asphalt you need for a driveway, parking lot, road, or overlay. Enter the area dimensions and pavement thickness to get tonnage, volume, and optional cost estimates based on standard asphalt density.
Paving Dimensions
Full Breakdown
Paving Area
Thickness
Volume
Volume
Density
Net Weight
With Waste/Compaction
Estimated Cost
How to Use This Calculator
- Enter the length and width of the paving area in feet.
- Select the asphalt thickness (2″ is standard for residential driveways).
- Choose the asphalt type (hot mix is most common).
- Set a waste/compaction factor (5% is typical).
- Optionally enter a price per ton for cost estimates.
- Click "Calculate Asphalt" for tonnage and cost.
The Formula
Volume (cu ft) = Length × Width × (Thickness ÷ 12)
Weight (lbs) = Volume × Density (lb/cu ft)
Tons = Weight ÷ 2000
With Waste = Tons × (1 + Waste%)
Weight (lbs) = Volume × Density (lb/cu ft)
Tons = Weight ÷ 2000
With Waste = Tons × (1 + Waste%)
Hot mix asphalt (HMA) typically weighs 145 lbs per cubic foot compacted. One ton of HMA covers approximately 80 sq ft at 2″ thick. Actual density varies by mix design — confirm with your asphalt supplier.