Asphalt Calculator
Estimate hot-mix asphalt in tons, cubic yards, and truckloads for driveways, parking lots, and roads.
Your Asphalt Estimate
- Enter dimensions - length and width of the area to pave.
- Select thickness - 2-3" residential, 3-4" commercial, 4-6" heavy traffic.
- Check density - 145 lb/ft³ is standard. Adjust if your plant specifies differently.
- Add waste - 10% standard. Higher for irregular shapes.
- Confirm with plant - verify tonnage and schedule delivery window.
Asphalt is sold by the ton. At the standard 145 lb/ft3, one ton of hot mix covers about 83 sq ft at 2 inches, 55 sq ft at 3 inches, or 41 sq ft at 4 inches. To get tons: area x thickness in feet x 145, divided by 2,000. A 1,000 sq ft driveway at 3 inches is about 18 tons, or 20 with 10% waste. Enter your area and thickness above for tons, cubic yards, and truckloads.
How Much Asphalt Do I Need?
Asphalt quantity depends on area, thickness, and mix density. One ton of standard hot-mix covers roughly 83 square feet at 2 inches thick, or 55 square feet at 3 inches, at a density of 145 lb/ft3. For a typical two-car driveway (600 ft²) at 3 inches, plan for 11-12 tons before waste.
Hot-mix asphalt must be placed at 275-325°F and compacted immediately. Unlike concrete, you can't slow down mid-pour - have your crew and equipment ready before the truck arrives. Most plants require 24-hour advance orders.
Asphalt Layers: Surface and Base
Tonnage by Thickness
| Thickness | Tons/100 ft² | Tons/1,000 ft² | Common Use |
|---|---|---|---|
| 2 in | 1.21 | 12.08 | Overlay |
| 3 in | 1.81 | 18.13 | Driveway |
| 4 in | 2.42 | 24.17 | Parking lot |
| 6 in | 3.63 | 36.25 | Heavy traffic |
Based on 145 lb/ft³ compacted density. Actual density varies by mix design.
How Much Does 1 Ton of Asphalt Cover?
| Thickness | Coverage per ton | Common use |
|---|---|---|
| 2 in | ~83 sq ft | Overlay / resurface |
| 3 in | ~55 sq ft | Residential driveway |
| 4 in | ~41 sq ft | Light parking lot |
| 6 in | ~28 sq ft | Heavy traffic |
At 145 lb/ft3 compacted. The thicker the layer, the less area a ton covers. This is the reverse of the table above - divide your area by these figures for a rough ton count, then add waste.
Recommended Thickness by Application
Under-paving leads to premature cracking; over-paving wastes material:
| Application | Thickness | Base Required |
|---|---|---|
| Walkway/path | 1.5-2 in | 4 in gravel |
| Residential driveway | 2-3 in | 6-8 in gravel |
| Parking lot | 3-4 in | 8-12 in gravel |
| Heavy trucks | 4-6 in | 12+ in gravel |
| Overlay | 1.5-2 in | Existing asphalt (milled) |
A properly compacted gravel base matters as much as the asphalt itself. Without good base prep, even thick asphalt will crack and settle.
Formulas
Standard volume-to-weight conversion:
Volume = Area × (Thickness ÷ 12)
Weight (tons) = Volume × Density ÷ 2,000
Cubic yards = Volume ÷ 27
Default density: 145 lb/ft³ (2,320 kg/m³) for compacted hot-mix. Your plant may use a different mix-specific density.
Asphalt Mix Types & Density
The calculator defaults to 145 lb/ft³ for standard hot mix. If your plant supplies a different mix, set the density field to match for an accurate tonnage:
| Mix type | Density (lb/ft³) | Typical use |
|---|---|---|
| Standard hot mix (HMA) | 145 | Driveways, parking lots, roads |
| Dense surface course | 148-155 | Top wearing layer |
| Base / binder course | 140-148 | Lower structural layers |
| Cold mix / patch | 130-140 | Pothole and small repairs |
| Open-graded / porous | 100-115 | Permeable, drainage paving |
What Asphalt Costs
Asphalt mix runs about $80 to $150 per ton in 2026, tied to crude oil prices. Installed - materials, labor, and base prep - a residential driveway typically lands around $4 to $13 per sq ft depending on region, with the Northeast and West Coast at the high end and the South at the low end. Removing an old driveway adds $1 to $3 per sq ft.
Use the tonnage above to price the material, then get quotes from two or three local contractors for the installed total - paving labor and equipment vary widely by area and access.
Worked Examples
Two-car driveway (600 sq ft, 3 in). Volume is 600 x 0.25 = 150 cubic feet. At 145 lb/ft3 that is 21,750 lb, or about 10.9 tons - call it 12 with 10% waste. That fits in one truckload.
Repaving 1,000 sq ft (3 in). 1,000 x 0.25 x 145 / 2,000 = 18.1 tons, about 20 with waste. Order in one delivery and have the crew ready before the truck arrives.
Parking lot (2,000 sq ft, 4 in). A heavier 4-inch layer over 2,000 sq ft is 48.3 tons before waste, about 53 with 10% - roughly three truckloads at 15 to 20 tons each.
Build the Base First
Asphalt is the top layer. Under it comes the part that decides how long it lasts:
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