Included
- Measured rectangular surface area
- Compacted volume at the entered thickness
- Weight based on the entered mix density
- Material-only cost based on your price per ton
Asphalt Driveway Cost Calculator
Calculate driveway area, compacted asphalt volume, tonnage, and material cost. Enter a supplier quote instead of relying on a national price assumption.
Driveway Material & Cost Estimate
Quantity first; cost uses the supplier price you enter.
Estimated material
Area
800 sq ft
Compacted volume
7.41 cu yd
Order quantity
14.5 US tons
Material cost
Enter a local price
This estimate covers asphalt mixture only. It excludes excavation, base, drainage, trucking, mobilization, labor, equipment, permits, taxes, and supplier minimums.
What the estimate means
Not included
- Pavement or base design
- Demolition, grading, drainage, and aggregate
- Trucking, labor, equipment, and mobilization
- Taxes, permits, minimum loads, and site constraints
Driveway asphalt tonnage formula
For imperial measurements, calculate compacted weight with:
US tons = length (ft) × width (ft) × thickness (in) ÷ 12 × density (lb/ft³) ÷ 2,000
Worked example: 20 × 40 ft at 3 inches
Area is 800 sq ft. At 3 inches, compacted volume is 200 ft³. Using 145 lb/ft³ gives 29,000 lb, or 14.5 US tons before any justified allowance or supplier rounding.
This is a quantity estimate, not a thickness recommendation. Pavement thickness and base requirements depend on traffic, soil, drainage, climate, and local specifications.
Use the result to compare quotes
Ask each contractor to state the same scope so the numbers are comparable:
- finished area and compacted asphalt thickness;
- mix designation and assumed compacted density;
- base removal, replacement depth, and compaction;
- drainage corrections, edge details, and trucking;
- tonnage tickets, exclusions, warranty, and payment terms.
For a general quantity calculation, use the main asphalt calculator. Check the compacted density guide, work backward with the asphalt coverage calculator, and compare quote decisions in the driveway ownership-cost guide.
Frequently Asked Questions
How many tons of asphalt does a 20 × 40 ft driveway need?
At 3 inches compacted thickness and 145 lb/ft³ density, the calculated quantity is 14.5 US tons before any ordering allowance: 800 × (3 ÷ 12) × 145 ÷ 2,000. Confirm compacted thickness, mix density, and order rounding with the contractor or supplier.
Does this calculator estimate the full installed driveway price?
No. It estimates asphalt mixture quantity and multiplies it by the local material price you enter. Installed quotes can also include demolition, grading, aggregate base, drainage, trucking, labor, equipment, permits, taxes, and mobilization.
Which asphalt density should I use?
Use the compacted density supplied for the proposed mix whenever possible. The calculator starts with 145 lb/ft³ (about 2,323 kg/m³) only as a planning assumption; changing density changes the tonnage directly.
Should I add an ordering allowance?
Add an allowance only when project conditions justify it—for example irregular boundaries, uncertain measurements, construction waste, or supplier minimum loads. Ask the paving contractor or plant how orders are rounded before adding a percentage.