Blacktop Calculator
Estimate the amount of blacktop (asphalt) needed for a driveway or parking lot based on dimensions and depth.
Published by:
isCalculator Editorial Team
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How to use this tool?
How to Use the Blacktop Calculator
- Enter Length (in feet) – e.g., 50
- Enter Width (in feet) – e.g., 20
- Enter Depth (in inches) – e.g., 4
- Click Calculate.
The result shows the required asphalt in tons (using a standard density of 2.025 tons per cubic yard). A breakdown of the calculation is also displayed.
All inputs must be positive numbers. Use imperial units (feet and inches).
Previous Results
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Frequently Asked Questions
The calculator computes the volume in cubic feet (length x width x depth in feet), converts to cubic yards (divide by 27), then multiplies by the average density of asphalt (2.025 tons per cubic yard) to get tons.
Typical residential driveway depths range from 2 to 4 inches. For heavier traffic, 4 to 6 inches is recommended.
Yes, the calculator works for any rectangular area. For irregular shapes, break the area into rectangles and sum the results.