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Asphalt Tonnage Calculator

Work out asphalt tonnage instantly with clear inputs, formula shown and shareable results.

About Asphalt Tonnage Calculator

For a linear job it is quicker to work from length and width than from a measured area. Tonnage is length times width times thickness times compacted density. The tonnes per kilometre figure is useful for programme planning because it converts directly into daily paving output.

Formula

Tonnage

Tonnes = length x width x thickness m x density / 1000

Worked example

With the default values below, Asphalt Tonnage Calculator returns Asphalt tonnage of 134.40. Change any input above and every figure here is recalculated in your browser.

Inputs used

Road lengthminimum 0.1 m
200 m
Road widthminimum 0.1 m
7 m
Layer thicknessminimum 5 mm
40 mm
Compacted densityminimum 500 kg/m³
2,400 kg/m³

Results

Asphalt tonnage
134.40 t
Paved area
1,400.0 m²
Compacted volume
56.00 m³
Tonnage per kilometre
672.00 t/km

Step by step

  1. 1Values used
  2. 2Tonnage
  3. 3Asphalt tonnage= 134.40 t
  4. 4Paved area= 1,400.0 m²
  5. 5Compacted volume= 56.00 m³
  6. 6Tonnage per kilometre= 672.00 t/km

Assumptions and limits

  • The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

How is the Asphalt Tonnage figure worked out?

Tonnes = length x width x thickness m x density / 1000. For a linear job it is quicker to work from length and width than from a measured area.

Should the tonnage include the tack coat?

No, tack coat is measured separately in litres per square metre, typically 0.2-0.4 L/m² of emulsion, and is ordered as a distinct item.

What values do I need to enter?

This calculator takes 4 inputs: Road length, Road width, Layer thickness, Compacted density. The pre-filled defaults are a realistic worked example — replace them with your own site or project figures.

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