How thick should asphalt be for a driveway?

Residential driveways need 2-3 inches of asphalt over a 4-6 inch gravel base. For heavier vehicles or commercial use, use 3-4 inches of asphalt. Proper base preparation is crucial—poor base causes premature cracking.

How much does asphalt cost per ton?

Asphalt costs $100-200 per ton depending on location and oil prices. Installation costs $3-7 per square foot including materials and labor. Minimum delivery charges often apply for small loads under 5 tons.

How do I convert square feet to tons of asphalt?

One ton of asphalt covers approximately 80 square feet at 2 inches thick, 40 square feet at 4 inches thick. Calculation: (square feet × thickness in inches × 110) ÷ 2000 = tons needed. 110 lb/sq ft is standard asphalt density.

Can I pour asphalt over existing driveway?

Yes, if the existing surface is in good condition (no major cracks or settling). Called an overlay, it's cheaper than full replacement. The old surface must be cleaned and treated. Not recommended if base has deteriorated.

How long does asphalt last?

Properly installed and maintained asphalt lasts 15-30 years. Seal coating every 2-3 years extends life significantly. Cracks should be filled promptly to prevent water damage to the base layer.

Home & Construction

Asphalt Calculator

Calculate asphalt needed for driveways and paving.

Length (ft)

Width (ft)

Depth (inches)

Standard driveway is 2-3 inches.

Price per Ton ($)

Average is $100-$150 per ton installed.

Enter dimensions to calculate

How to Use This Calculator

Measure Paving Area

Measure length and width of the driveway or area to be paved in feet. For irregular shapes, break into sections and measure each, or estimate average dimensions.

Determine Asphalt Thickness

Decide on thickness: 2-3 inches for residential driveways, 3-4 inches for heavy vehicle use. This is the asphalt layer thickness, not including the gravel base below.

Calculate Tonnage

Enter area dimensions and thickness. The calculator converts to tons of asphalt needed using standard density (110 lbs per square inch per square foot).

Prepare Base and Order

Ensure proper gravel base is installed and compacted (4-6 inches). Contact paving contractors with your tonnage requirements. Asphalt must be installed quickly while hot—have adequate crew ready.