Asphalt Calculator
Estimate tons of asphalt needed and total cost for driveways, parking lots, or paths. Uses standard hot-mix asphalt density of 145 lbs per cubic foot.
Quick reference: tons by area
| Area | 2" depth | 3" depth | 4" depth | 6" depth |
|---|---|---|---|---|
| 500 sq ft | 6.0 tons | 9.1 tons | 12.1 tons | 18.2 tons |
| 1,000 sq ft | 12.1 tons | 18.2 tons | 24.2 tons | 36.3 tons |
| 1,500 sq ft | 18.2 tons | 27.2 tons | 36.3 tons | 54.4 tons |
| 2,000 sq ft | 24.2 tons | 36.3 tons | 48.3 tons | 72.5 tons |
| 5,000 sq ft | 60.4 tons | 90.6 tons | 120.8 tons | 181.3 tons |
Based on 145 lb/cu ft asphalt density with 5% compaction factor.
FAQs
How many tons of asphalt do I need?
Formula: Tons = (Length × Width × Depth ÷ 12) × 145 lbs/cubic ft ÷ 2,000. For a 1000 sq ft driveway at 3 inches depth: (1000 × 0.25) × 145 ÷ 2000 = ~18 tons. Adjust for compaction (multiply by 1.05 for hot-mix asphalt).
How much asphalt do I need for a driveway?
Typical residential driveway: 600-1,200 sq ft × 3 inches depth = 11-22 tons of asphalt. At $100-150/ton installed, total cost is roughly $1,500-$3,500 for materials + labor. Commercial parking lots: 4-6 inches depth, doubling the tonnage.
What is asphalt density?
Hot-mix asphalt (HMA) is approximately 145 pounds per cubic foot after compaction. Different mixes vary slightly: dense-graded HMA (most common): 140-150 lb/cu ft. Stone matrix asphalt (SMA): 145-155 lb/cu ft. Cold patch asphalt: 110-130 lb/cu ft (lower density).
How thick should asphalt be?
Residential driveway: 2-3 inches. Heavy residential (multiple vehicles, RV): 3-4 inches. Commercial parking lot: 4-6 inches. Roads: 6-12 inches in layers. The thicker, the more durable and longer-lasting — also more expensive.
How much does asphalt cost per ton?
Loose hot-mix asphalt (delivered): $80-$120/ton in 2026. Installed (including labor, equipment, sub-grade prep): $100-$200/ton. Cost varies by region, fuel prices, and project size. Smaller residential jobs cost more per ton due to setup overhead.
Asphalt vs concrete driveway: which is cheaper?
Asphalt is cheaper upfront ($3-$7/sq ft installed) vs concrete ($6-$12/sq ft). However, asphalt requires resealing every 3-5 years ($100-$300 each time) and full replacement at 15-25 years. Concrete lasts 30-40 years with minimal maintenance. Long-term, concrete is comparable or cheaper for cold climates; asphalt wins in warm climates.