Asphalt Calculator

Metres, or feet in imperial.
Used instead of length and width.
Millimetres, or inches in imperial.
kg/m³, or lb/ft³ in imperial. Ask the supplier; mixes differ.
Per tonne, or per short ton in imperial.
No standard prescribes a figure. Many contractors add 5 to 10 per cent.
Asphalt needed
4.320
Asphalt Calculator
Including the allowance
4.320
Weight in tonnes
4.320 t
Tonnes including the allowance
4.320 t
Cost
518.40
Cost including the allowance
518.40
Area
36.00
Volume
1.800
Short tons
4.762
Weight
9,523.970 lb
Worked out from Asphalt Institute, MS-22 Construction of Quality Asphalt Pavements and 2 other sources.
Density is the figure that moves the answer most, and it depends on the mix and on compaction. Use the supplier’s figure for the mix being laid rather than a general one.
No waste allowance is included. No standard prescribes one; contractors commonly add 5 to 10 per cent for compaction loss, edges and the last load.

How this is worked out

4 steps
  1. Area = 36 m²
  2. Volume = 36 × 0.05 m = 1.8 m³
  3. Weight = 1.8 × 2400 kg/m³ = 4320 kg
  4. = 4.32 tonnes at 120 each = 518.4

Results are general information, not financial, tax, legal, medical or engineering advice.