Asphalt Volume Calculator
Calculate the exact volume of finished asphalt mix your project requires in cubic metres — the starting figure behind every tonnage and cost calculation.
Asphalt Volume Calculator
Dimensions
Mix Properties
Typical Bitumen Content by Mix Type
| Mix Type | Bitumen |
|---|---|
| General Asphalt | 5.0% - 5.5% |
| High Traffic Roads | 6.0% - 7.0% |
| Rigid Pavements | 4.0% - 4.5% |
| Binder Courses | 4.5% - 5.5% |
| Wearing Courses | 5.5% - 6.5% |
| Stone Mastic Asphalt | 6.5% - 7.5% |
Volume is the geometric starting point for any asphalt job: length times width times thickness, before density and mix percentages come into it at all. This calculator gets you that cubic-metre figure directly, and carries it through to weight and cost once you add density and price.
Volume calculation
Volume (m³) = Length (m) × Width (m) × Thickness (m)
Thickness is almost always specified in millimeters — this calculator converts automatically, so you can enter 40 (mm) directly without doing the conversion yourself.
Why asphalt volume looks different from bitumen volume
The volume figure here represents the full finished asphalt mix — aggregate and bitumen binder together — occupying that space. It is not the volume of bitumen alone, which is a much smaller figure once you apply the bitumen content percentage. If you specifically need the binder-only volume for a spray application rather than a paved layer, use the tack coat, prime coat, or seal coat calculators instead, which work on area × spray rate rather than volume × density.
| Area | Thickness | Volume |
|---|---|---|
| 200 m² | 40mm (0.04m) | 8.0 m³ |
| 500 m² | 50mm (0.05m) | 25.0 m³ |
| 1,000 m² | 75mm (0.075m) | 75.0 m³ |
| 5,000 m² | 100mm (0.1m) | 500.0 m³ |
From volume to a full order
Volume by itself isn’t what you order — asphalt is bought by weight. Once you have your volume figure, add your mix’s density (typically 2,300–2,400 kg/m³ for dense-graded hot mix) to convert it to tonnage, and a price per tonne if you want a cost estimate alongside it. This calculator does both steps automatically from the same inputs.
Cubic yards instead of cubic metres
If your project specification uses cubic yards, multiply this calculator’s cubic-metre result by approximately 1.308, or use the [unit converter](/unit-converter/) for a quick conversion in either direction.
Volume for stockpiling and delivery planning
Beyond a single day’s pour, volume matters for planning storage and delivery logistics on larger jobs — asphalt plants and haul trucks work in volume-equivalent capacity terms even though the final invoice is by weight. If your project spans multiple delivery days, calculate the volume needed per day rather than the whole project total, so you can confirm each day’s truck capacity and plant output can actually keep pace with your paving crew.
Convert this volume into weight and cost