Asphalt reference chart
Asphalt tonnage coverage chart
Coverage by compacted thickness
US units
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| Thickness (in) | Area / short ton (ft²) | With 8% allowance (ft²) |
|---|---|---|
| 1 | 166 | 153 |
| 1.5 | 110 | 102 |
| 2 | 83 | 77 |
| 2.5 | 66 | 61 |
| 3 | 55 | 51 |
| 4 | 41 | 38 |
Metric units
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| Thickness (mm) | Area / metric tonne (m²) | With 8% allowance (m²) |
|---|---|---|
| 25 | 17.2 | 15.9 |
| 40 | 10.8 | 10 |
| 50 | 8.6 | 8 |
| 60 | 7.2 | 6.6 |
| 75 | 5.7 | 5.3 |
| 100 | 4.3 | 4 |
Coverage is calculated at 145 lb/ft³ (about 2,323 kg/m³). The allowance column divides theoretical coverage by 1.08; it is not an extra layer of asphalt.
Look up the approximate paved area covered by one short ton or metric tonne at common compacted thicknesses.
At 145 lb/ft³, one short ton covers about 83 ft² at 2 inches before waste, or about 77 ft² with an 8% ordering allowance.
Treat this as a fast planning lookup
- Compacted thickness controls the result; do not enter loose lift thickness.
- Replace the density and allowance with supplier values when preparing an order.
Sources and method
- Federal Highway Administration: Application Rates and Weights for Estimating Purposes
- Asphalt Institute: Engineering FAQs
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