Asphalt Calculator
Enter the paving area and compacted thickness to see how many tons of asphalt to order.
Results are estimates for planning only. Always confirm measurements, local codes and manufacturer specs before ordering materials or quoting a job. See our Terms.
How to calculate asphalt
Hot mix asphalt weighs about 145 lb per cubic foot once compacted, or roughly 110 lb per square yard per inch of thickness. Tons = length x width x thickness (in) / 12 x 145 / 2,000.
Residential driveways are usually 2 to 3 inches of asphalt over 4 to 8 inches of compacted gravel base. Add a few percent extra for edges and uneven base.
Questions
How many tons of asphalt for a driveway?
A 50 x 12 ft driveway at 3 inches needs about 11 tons, or a little over 11 with extra.
How thick should an asphalt driveway be?
Usually 2 to 3 inches for cars, and 3 to 4 inches or more for heavy vehicles, over a well-compacted gravel base.
How much does a ton of asphalt cover?
At 2 inches thick, about 80 sq ft per ton; at 3 inches, about 55 sq ft per ton.