Asphalt Tonnage Calculator
The tonnage calculator is built for one job: telling you exactly how many tons of hot mix asphalt to order. Tuned for Pakistan — defaults to metric units, aligned with NHA General Specifications. Enter your dimensions, get a tonnage number ready to send to your supplier.
How Asphalt Tonnage Is Calculated
- Volume = Length × Width × Thickness
- Weight = Volume × density (145 lbs/ft³ or 2,322.7 kg/m³)
- Tons = Weight ÷ ton conversion (2,000 lbs or 1,000 kg)
The 10% buffer accounts for compaction and waste loss.
Tons per Square Foot — Quick Lookup
| Thickness | Tons per 100 sq ft | Tons per 1,000 sq ft |
|---|---|---|
| 1 inch | 0.6 tons | 6.3 tons |
| 2 inches | 1.25 tons | 12.5 tons |
| 3 inches | 1.88 tons | 18.8 tons |
| 4 inches | 2.5 tons | 25 tons |
| 6 inches | 3.75 tons | 37.5 tons |
Pakistan Asphalt Mix Tonnage Reference
| Mix Type | Typical Layer | Tonnes per 100 m² |
|---|---|---|
| Class A Wearing Course | 50 mm | 11.6 tonnes |
| Class B Wearing Course | 40 mm | 9.3 tonnes |
| Asphaltic Base Course | 75 mm | 17.4 tonnes |
Ordering Tips for Contractors
- Truck capacity is typically 20–25 tons. Plan deliveries to keep the paver fed.
- Mix temperature drops fast — schedule trucks tightly, especially in cold weather.
- Always confirm the supplier's specific mix density. If it differs from 145 lbs/ft³, recalculate.