★Every benchmark cites a public source — explore the Benchmarks hub.
NumberBench
Home › Home & Projects › Asphalt Calculator

Asphalt Calculator

Updated June 2026 · By the NumberBench editorial team · How we calculate

Estimate the tons of hot-mix asphalt for a driveway or lot — with cubic yards and a material-cost estimate. Drag the 3D view to picture the pour.

ft
ft
in
$
Asphalt needed—
Cubic yards—
Estimated material cost—
Cost per sq ft—

3D fill · drag to rotate

🛠️ Find paving & asphalt suppliers

Check it out

From area to tons

Asphalt is ordered by the ton, but you measure a job by area and depth, so the conversion trips people up. Hot-mix asphalt weighs roughly 145 lb per cubic foot — about 2 tons per cubic yard — so a thin layer over a wide area adds up fast. Enter your dimensions for tonnage and cubic yards, and an optional price per ton for a quick material-cost estimate. Order a little extra for compaction and edges.

How it’s calculated

Volume = length × width × depth. Tons = volume (cu ft) × 145 lb ÷ 2,000. Cubic yards = volume ÷ 27. Material cost = tons × price per ton; cost per sq ft = cost ÷ area.

Results update as you type and are estimates, not professional advice — verify important decisions with a qualified professional.

Worked example

A 50 × 20 ft driveway at 3 inches is about 9.3 cubic yards — roughly 18 tons, or about $2,175 in material at $120/ton.

Common mistakes

  • Confusing tons with cubic yards — weight depends on density.
  • Forgetting the compacted aggregate base under the asphalt.
  • Not adding 5–10% for compaction and waste.

Where it is used

  • Ordering hot-mix asphalt for a driveway or lot.
  • Turning a contractor’s area into a delivery tonnage.
  • Ballparking material cost before quotes.

Frequently asked questions

How many tons of asphalt do I need?

Multiply area by depth to get volume, then convert with hot-mix asphalt's density of about 145 lb per cubic foot (roughly 2 tons per cubic yard). This tool does it for you and adds a cost estimate.

How thick should an asphalt driveway be?

Residential driveways are commonly 2–3 inches of asphalt over a 4–8 inch compacted aggregate base. Heavier use calls for more.

Should I order extra?

Yes — add about 5–10% for compaction, edges, and uneven grade so you don't run short mid-pour.