How many tons of asphalt do I need?
Quick planning guide for common driveway and pad sizes. Figures use 145 lb/ft³ compacted hot mix and no waste — add 5–10% for edges. For exact dimensions use the asphalt calculator.
Open free asphalt tonnage calculator →Common sizes → tons (2" and 3")
Rounded to two decimals. Density 145 lb/ft³. Not a bid — see methodology.
| Size (ft) | Area | @ 2" | @ 3" |
|---|---|---|---|
| 20 × 10 | 200 ft² | 2.42 t | 3.63 t |
| 30 × 10 | 300 ft² | 3.63 t | 5.44 t |
| 40 × 12 | 480 ft² | 5.80 t | 8.70 t |
| 50 × 10 | 500 ft² | 6.04 t | 9.06 t |
| 50 × 12 | 600 ft² | 7.25 t | 10.88 t |
| 60 × 12 | 720 ft² | 8.70 t | 13.05 t |
| 80 × 12 | 960 ft² | 11.60 t | 17.40 t |
| 100 × 12 | 1,200 ft² | 14.50 t | 21.75 t |
Example: 50 × 10 × 2" → 50 × 10 × (2/12) × 145 ÷ 2000 = 6.04 tons. With 5% waste ≈ 6.34 tons.
Steps to estimate your job
- Measure length and width in feet (or break an L-shape into rectangles).
- Choose compacted thickness (often 2–3" for residential driveways).
- Use 145 lb/ft³ unless your plant specifies otherwise.
- Add waste, then check cost per ton for a material-only dollars estimate.
- Confirm truck minimums — many plants won’t deliver a fraction of a load.
Need a driveway-focused tool? Try the driveway asphalt calculator. Estimating stone under the mix? Use the base calculator.
FAQ
How many tons for a two-car driveway?
Roughly 500–700+ ft² is common. At 2" and 145 lb/ft³ that’s about 6–8.5 tons before waste. Measure your pad — sizes vary widely.
Should I order extra?
Yes — 5–10% overage is typical for edges and waste. Complex shapes may need more.
Does thickness matter more than length?
Tons scale linearly with thickness. Going from 2" to 3" adds about 50% more material for the same footprint.