Asphalt Calculator
Calculate asphalt tonnage and material cost from your project's square footage. Free, instant, no signup required.
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2 in = residential driveway · 3 in = light commercial · 4-6 in = heavy traffic
$115 = April 2026 national average for material. Adjust to your local supplier.
5% standard. Bump to 7-10% for irregular shapes or many edges.
Enter your project’s total area to calculate.
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Multi-section bid sheet
Calculate multiple areas in one project — driveways, parking lots, patches — and total them up.
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Regional pricing for your zip code
Stop guessing at $115/ton. Get current pricing from suppliers in your market.
How to Calculate Asphalt Tonnage
Asphalt is sold by the ton, but you measure your job in square feet. To convert, you need three numbers: area, depth, and density.
The formula: tons = (area_sq_ft × depth_ft × density_lb_per_ft³) ÷ 2,000. A 1,000 sq ft driveway at 2 inches deep with hot-mix asphalt comes out to roughly 12 tons before waste, or about 12.7 tons with the standard 5% contingency.
For irregular shapes — and most real-world parking lots, driveways, and patches are irregular — you have two options. Either break the area into rectangles and triangles and add them up by hand, or use ProPaving to draw the actual shape on satellite imagery and let the math run automatically. Pros use the second option because it’s faster and the result is auditable in a PDF report.
What Asphalt Density Should I Use?
If your supplier hasn’t told you a specific number, use these defaults:
- Hot Mix Asphalt (HMA): 145 lb/ft³ — the standard for new commercial and residential paving
- Cold Mix: 140 lb/ft³ — used for patches and temporary repairs
- Recycled Asphalt Pavement (RAP): 138 lb/ft³ — used in driveways, parking lots, and base layers
For large jobs, ask your supplier for the unit weight of the specific mix you’re buying. A 5 lb/ft³ density difference on a 100,000 sq ft job moves the tonnage by ~17 tons — which is real money at $115/ton.
Asphalt Cost Per Square Foot in 2026
Material only: About $0.65 to $0.85 per square foot for a 2-inch driveway, $1.00 to $1.25 per square foot for a 3-inch parking lot. This calculator gives you the exact figure once you enter your area.
Installed (with labor): Typically $3 to $8 per square foot for commercial parking lots, $7 to $15 per square foot for residential driveways. The spread depends on your region, base prep needs, and job size — small driveways carry higher per-foot prices because mobilization is a fixed cost.
Sources: April 2026 industry pricing data from Asphapro, HomeGuide, Angi, National Facility Contractors. National average cost per ton: $110-$125 (material only).
Common Questions
How is asphalt tonnage calculated?
Asphalt tonnage = (area in square feet × depth in feet × density in pounds per cubic foot) ÷ 2,000 pounds per ton. Most hot-mix asphalt has a density of 145 lb/ft³. A 5% waste contingency is added on top to account for spillage, compaction loss, and rounding up to the nearest delivery quantity.
What asphalt density should I use?
Hot Mix Asphalt (HMA) typically runs 145 lb/ft³. Cold Mix runs slightly lighter at ~140 lb/ft³. Recycled Asphalt Pavement (RAP) varies but averages around 138 lb/ft³. If your supplier provides a specific density, use that — small density differences add up on large jobs.
How thick should asphalt be?
Residential driveways typically use 2 inches of asphalt over a 4-6 inch compacted aggregate base. Light commercial parking lots use 3 inches. Heavy-duty parking lots and roadways with truck traffic use 4-6 inches, often in two lifts (binder course plus surface course).
What does asphalt cost per ton in 2026?
Hot-mix asphalt averages $110-$125 per ton nationally for material only. Regional pricing varies: Southeast and Texas run $80-$135 per ton, Northeast and California run $130-$180 per ton. Installed cost (with labor and base prep) is typically $3-$8 per square foot for commercial work and $7-$15 per square foot for residential driveways.
Why does the calculator add 5% waste?
Asphalt is sold by weight in delivered loads, and contractors round up to avoid running short. The 5% contingency covers compaction, spillage, edges, and rounding to the next delivery quantity. Adjust this based on job complexity — irregular shapes and lots of edges may need 7-10%.
How do I measure square footage if I don't already know it?
For rectangular areas, measure length × width. For irregular shapes (most parking lots and driveways have curves, islands, and odd corners), professional contractors use ProPaving to draw the area on satellite imagery and get exact square footage automatically. Try ProPaving free for 14 days at propaving.com/signup.
Related Tools & Guides
How Much Asphalt Do I Need?
Full guide with formula, density and depth defaults, regional cost ranges, and a worked example.
Asphalt Cost Per Square Foot Guide
2026 installed pricing by job type and region. Captures cost-question intent the calculator can't reach alone.
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Bidding Real Jobs?
Calculators are great for back-of-napkin math. Real bids need real measurements, multi-area projects, and PDF reports. Try ProPaving free for 14 days.
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