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Asphalt Calculator

Calculate the amount of asphalt needed for your project based on area and thickness. Get instant results and helpful insights for your construction planning.

1Enter Your Project Details

📏ft
↔️ft
📚in

Pro Tip

For driveways, a thickness of 2-3 inches is common. For parking lots, 3-4 inches is recommended for durability.

2Results

Area:0.00 sq ft
Volume:0.00 cu ft
Asphalt Needed:0.00 tons

Bonus Insight

Enter dimensions to see additional insights about your project.

Asphalt Calculator Guide

Understanding Asphalt Measurements

Asphalt is typically measured by weight (tons or tonnes) rather than volume. This calculator converts your project dimensions into the weight of asphalt needed.

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Density

Asphalt typically weighs about 145 pounds per cubic foot (2,322 kg/m³).

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Compaction

Asphalt is compacted during installation, affecting the final volume needed.

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Thickness

Proper thickness is crucial for durability and load-bearing capacity.

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Temperature

Asphalt must be installed at specific temperatures for proper compaction.

Recommended Asphalt Thickness

ApplicationRecommended ThicknessNotes
Residential Driveway2-3 inchesSuitable for light vehicles
Commercial Driveway3-4 inchesFor heavier traffic
Parking Lot3-4 inchesStandard commercial use
Heavy-Duty Parking4-6 inchesFor trucks and heavy equipment
Roadway4-6 inchesDepends on traffic volume

Asphalt Pavement Layers

Surface Course (Asphalt) - 1.5-2"
Binder Course - 2-3"
Base Course (Crushed Stone) - 4-6"
Subbase (Gravel) - 4-8"
Subgrade (Compacted Soil)

Additional Considerations

  • Base Material:

    A proper base of 4-8 inches of crushed stone or gravel is recommended beneath the asphalt.

  • Waste Factor:

    Consider adding 5-10% extra material to account for waste and spillage.

  • Compaction:

    Asphalt is typically compacted to about 75-85% of its loose volume.

  • Minimum Order:

    Many asphalt suppliers have minimum order requirements (often 5-10 tons).

How Much Does 1 Ton of Asphalt Cover?

2" Thickness
~80 sq ft
3" Thickness
~55 sq ft
4" Thickness
~40 sq ft

How to Use This Calculator

1

Enter Dimensions

  • Measure length and width of your project area
  • Determine required thickness based on usage
  • Input all measurements in the same unit system
2

Select Unit System

  • Choose Imperial (feet, inches) for US projects
  • Choose Metric (meters, cm) for international projects
  • Calculator automatically converts between systems
3

View Results

  • See calculated area in square feet/meters
  • View volume in cubic feet/meters
  • Get asphalt needed in tons/tonnes
4

Check Bonus Insights

  • See estimated truckloads required
  • View approximate material costs
  • Download results for your records

Frequently Asked Questions

Need help estimating larger projects?

Our team of experts can provide personalized assistance for complex construction projects.