Asphalt Tonnage Calculator

Tons of hot-mix asphalt for a driveway or parking area, given dimensions and lift thickness.

Inputs

2 in for residential overlay, 3 in new driveway, 4+ in for parking lots.

145 lb/ft³ is standard hot-mix asphalt.

Result

Asphalt needed
5.80 tons
480 ft² at 2 in thickness.
  • Volume80.0 ft³
  • Weight11,600 lb
  • Tons5.800
  • Density145 lb/ft³

Step-by-step

  1. Volume = 40 × 12 × 0.167 = 80.00 ft³.
  2. Weight = 80.00 × 145 = 11,600 lb.
  3. Tons = 11,600 ÷ 2000 = 5.800 tons.

How to use this calculator

  • Enter the paved area and thickness.
  • Use density 145 lb/ft³ for standard hot-mix; adjust if your supplier specifies a different density.
  • Check the breakdown for total weight if your supplier prices in tons or short tons.

About this calculator

Asphalt is sold by the ton, and 1 cubic foot of compacted hot-mix weighs about 145 lb. A residential driveway typically uses 2-3 inches of asphalt over a properly prepared 4-6 inch gravel base. Always order at least 5% extra to cover edge spread and roller compaction.

Frequently asked

2 inches for an overlay on existing pavement. 3 inches for a new driveway over a gravel base. 4+ inches for parking lots and high-traffic surfaces.

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