Asphalt Calculator
Estimate tons of hot-mix asphalt for a driveway, parking pad, or path from length, width, and compacted depth — with volume, weight, and cost.
Formula and figures last reviewed by the Cosyslabs team · how we verify
Inputs
Result
Asphalt needed
9.13 tons
Volume
4.67 yd³
- Weight
- 18270 lb
- Metric tonnes
- 8.29 t
- Compacted depth
- 3.0 in
- Waste
- 5%
Waste default: 5% — Paving crews typically order 5% over to cover edge spread, compaction variation, and the truck bed leaving material behind.
Estimates only. Verify with a licensed contractor or supplier before purchasing. Rough Estimator! is not responsible for shortages, overages, or material variances. See our methodology for formulas and sources.
Formula
Tons = (L × W × D ft × density lb/ft³ × (1 + waste)) ÷ 2000
References
Pour-window forecast
Free 7-day forecast from Open-Meteo. Green = safe to asphalt. We never share your location.
Related tools & materials
Don't forget
- Crushed aggregate base
- Tack coat
- Edge restraint
- Sealcoat
Also useful
Frequently asked questions
Multiply length by width by compacted depth in feet, multiply by the mix density (about 145 lb/ft³), and divide by 2,000 for tons. A 40 × 12 ft driveway at 3 inches needs roughly 8.7 tons before waste.
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Cosyslabs. (2026). Asphalt Calculator. Rough Estimator!. https://roughestimator.com/asphalt-calculator
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