When planning to build or resurface a driveway, parking lot, or road, one of the most important steps is figuring out how much asphalt you need. Ordering too little can delay your project, while ordering too much increases unnecessary costs.
Our Asphalt Tonnage Calculator helps you quickly determine the exact amount of asphalt required based on the driveway’s dimensions, thickness, and asphalt density.
Formula to Calculate Asphalt Tonnage
Step 1: Calculate the Area of the Driveway
Area=Length×Width
Step 2: Convert Thickness to Feet (if needed)
Thickness (ft)=12Thickness (in)
Step 3: Calculate Volume of Asphalt
Volume=Area×Thickness
Step 4: Convert Volume to Cubic Yards
Volume (yd3)=27Volume (ft3)
Step 5: Calculate Asphalt Tonnage
Asphalt Tonnage=Volume (yd3)×Asphalt Density (tons/yd3)
Example Calculation
Suppose you are paving a driveway with the following details:
- Length = 100 ft
- Width = 12 ft
- Thickness = 3 inches
- Asphalt Density = 2.2 tons/yd³
Step 1: Area
Area=100×12=1200ft2
Step 2: Thickness in feet
Thickness=123=0.25ft
Step 3: Volume in cubic feet
Volume=1200×0.25=300ft3
Step 4: Convert to cubic yards
Volume (yd3)=27300≈11.11yd3
Step 5: Asphalt Tonnage
Tonnage=11.11×2.2≈24.44tons
Final Answer: You will need approximately 24.44 tons of asphalt.
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