MasterTool

Asphalt Calculator

Estimate hot-mix asphalt tonnage for a driveway or patch from area, thickness and compacted density.

Loading calculator…

Currency: Amounts are calculated in the currency you select; this site does not convert between currencies and does not use live exchange rates.

What this tool does

Estimate hot-mix asphalt tonnage for a driveway or patch from area, thickness and compacted density. Compacted hot-mix asphalt density is typically 140–150 lb/cu ft; 145 is the standard planning value. Thickness is the compacted (finished) thickness, not the loose depth.

How to use the Asphalt Calculator

  1. Enter or select length in ft.
  2. Enter or select width in ft.
  3. Enter or select compacted thickness in in.
  4. Enter or select compacted asphalt density (lb/cu ft).
  5. Enter or select price per ton.
  6. Enter or select waste allowance (%).
  7. Read the calculated result; change any measurement to compare alternatives.

Formula

tons = L × W × (depth/12) × density / 2000 × (1 + waste/100); cost = tons × price
length
Length (ft, before metric conversion)
width
Width (ft, before metric conversion)
depth
Compacted thickness (in, before metric conversion)
density
Compacted asphalt density (lb/cu ft)
price
Price per ton
waste
Waste allowance (%)

Compacted hot-mix asphalt density is typically 140–150 lb/cu ft; 145 is the standard planning value. Thickness is the compacted (finished) thickness, not the loose depth.

Worked example

For asphalt calculator, the following measurements illustrate the exact method: Length: 20; Width: 10; Compacted thickness: 3; Compacted asphalt density (lb/cu ft): 145; Price per ton: 110; Waste allowance (%): 10.

Inputs

  • Length20 ft
  • Width10 ft
  • Compacted thickness3 in
  • Compacted asphalt density (lb/cu ft)145
  • Price per ton110
  • Waste allowance (%)10

Result

  • Asphalt needed3.99 US tons
  • Volume50 cu ft
  • Volume (cubic yards)1.85 cu yd
  • Estimated material cost$438.63

Results explained

Asphalt needed
Asphalt needed from the formula above, expressed in ton before metric conversion. Compacted hot-mix asphalt density is typically 140–150 lb/cu ft; 145 is the standard planning value. Thickness is the compacted (finished) thickness, not the loose depth.
Volume
Volume from the formula above, expressed in cuft before metric conversion. Compacted hot-mix asphalt density is typically 140–150 lb/cu ft; 145 is the standard planning value. Thickness is the compacted (finished) thickness, not the loose depth.
Volume (cubic yards)
Volume (cubic yards) from the formula above, expressed in yd3 before metric conversion. Compacted hot-mix asphalt density is typically 140–150 lb/cu ft; 145 is the standard planning value. Thickness is the compacted (finished) thickness, not the loose depth.
Estimated material cost
Estimated material cost from the formula above. Compacted hot-mix asphalt density is typically 140–150 lb/cu ft; 145 is the standard planning value. Thickness is the compacted (finished) thickness, not the loose depth.

Frequently asked questions

200 sq ft × 0.25 ft = 50 cu ft × 145 lb/cu ft ≈ 7,250 lb ≈ 3.6 tons before waste — about 4 tons with the default allowance.

Residential driveways are commonly 2–3 in of compacted surface asphalt over a compacted aggregate base; heavier vehicle use justifies 3–4 in. Local practice and soil rule.

Plants batch and weigh hot mix by the ton, and compacted volume converts cleanly through density (≈145 lb/cu ft, so one ton covers about 13.8 cu ft).

At 145 lb/cu ft, a ton is 13.8 cu ft: about 55 sq ft at 3 in compacted, or 83 sq ft at 2 in.

No — this is the asphalt layer only. Base aggregate is a separate material (see the gravel and paver base tools).