Asphalt Calculator
Enter the area and compacted thickness. You get the tons of asphalt to order and the cost.
How the asphalt calculator works
Asphalt is sold by the ton. The calculator finds the volume (length × width × thickness in feet), multiplies by the density of compacted hot mix asphalt, about 145 lb per cubic foot, and divides by 2,000 to get tons. A little extra is added because edges and low spots always take more than the plan.
Residential driveways are usually 2" to 3" of compacted asphalt over a gravel base. Enter the compacted thickness, not the loose thickness before rolling.
Questions
How many tons of asphalt for a 20 × 20 driveway?
At 2" compacted thickness, a 20 × 20 ft area needs about 4.83 tons with no extra.
How much does a ton of asphalt cover?
At 2" thick, one ton covers about 83 sq ft. At 3" thick it covers about 55 sq ft.
How thick should a driveway be?
Most residential driveways get 2" to 3" of compacted asphalt over 4" to 8" of compacted gravel base.