Asphalt Calculator
Enter dimensions and thickness to estimate asphalt requirements.
$
Volume (ft3) = Length * Width * Thickness(ft)
Tons ~= Volume * Density(lb/ft3) / 2000
Cubic Yards = Volume / 27
Driveway 40*12 ft, 3 in -> ~8.7 tons (at 145 lb/ft3).
What density should I use?
Compacted asphalt is often ~145 lb/ft³. Your supplier may specify a different value—use that for better accuracy.
How do I convert inches to feet for thickness?
Thickness (ft) = Thickness (in) ÷ 12. The calculator handles this automatically.
Can I include waste/overage?
Yes. Add a contingency (e.g., 5–10%) to the final tons or cost as needed.
How accurate is the cost?
This multiplies tons by your unit price. Actual price may vary by delivery, region, and supplier policies.
How do you estimate tons?
Volume × density. Typical compacted asphalt density ≈ 145 lb/ft³. Convert to tons.
📐 Formula
Volume (ft3) = Length * Width * Thickness(ft)
Tons ~= Volume * Density(lb/ft3) / 2000
Cubic Yards = Volume / 27
📝 Example Calculation
Driveway 40*12 ft, 3 in -> ~8.7 tons (at 145 lb/ft3).
❓ Frequently Asked Questions
What density should I use?▼
Compacted asphalt is often ~145 lb/ft³. Your supplier may specify a different value—use that for better accuracy.
How do I convert inches to feet for thickness?▼
Thickness (ft) = Thickness (in) ÷ 12. The calculator handles this automatically.
Can I include waste/overage?▼
Yes. Add a contingency (e.g., 5–10%) to the final tons or cost as needed.
How accurate is the cost?▼
This multiplies tons by your unit price. Actual price may vary by delivery, region, and supplier policies.
How do you estimate tons?▼
Volume × density. Typical compacted asphalt density ≈ 145 lb/ft³. Convert to tons.