Asphalt Calculator

Asphalt Calculator

Calculate asphalt quantities for your paving project.

Dimensions

ft
ft
in

Mix Properties

%
lb/ft³

Cost Estimation (Optional)

$/tonne

Calculation Results

Ready to Calculate

Enter your project dimensions and click "Calculate" to see results.

How the Asphalt Calculator Works

The Asphalt Calculator uses your project dimensions and mix design data to estimate total mix volume, total weight, bitumen quantity, aggregate quantity, and optional project cost, using consistent engineering units for accurate results.

1
Standardize Units

All inputs are converted into base units to avoid errors: length & width to meters (m), thickness to meters (m) from mm, cm, or inches, and density to kilograms per cubic meter (kg/m³), including conversion from lb/ft³.

This ensures consistent calculations regardless of your preferred unit system (US Imperial or Metric).

2
Calculate Mix Volume (m³)

The tool calculates the asphalt mix volume based on your inputs:

Volume = Length (m) × Width (m) × Thickness (m)
3
Calculate Total Mix Weight

Using the selected mix density, the calculator finds the total weight of the asphalt mix:

Total Mix Weight (kg) = Volume (m³) × Mix Density (kg/m³) Total Mix Weight (tonnes) = Total Mix Weight (kg) ÷ 1000
4
Bitumen Content Breakdown

Based on your entered bitumen percentage, the tool isolates the binder (bitumen) weight from the total mix:

Bitumen Weight (kg) = Total Mix Weight (kg) × (Bitumen % ÷ 100) Bitumen Weight (tonnes) = Bitumen Weight (kg) ÷ 1000

Typical bitumen content ranges from 4% to 7% depending on the mix design and application.

5
Aggregate Quantity

The remaining weight is assigned to aggregates (stone, sand, and filler materials):

Aggregate Weight (kg) = Total Mix Weight (kg) − Bitumen Weight (kg) Aggregate Weight (tonnes) = Aggregate Weight (kg) ÷ 1000
6
Cost Estimation (Optional)

When you provide a price per tonne, the calculator estimates the overall material cost:

Estimated Total Cost = Total Mix Weight (tonnes) × Price per Tonne

This helps you quickly plan budgets, compare mix options, and avoid under- or over-ordering material. Note: Cost estimates typically exclude taxes, freight, and installation labor.