Calculate how many tonnes of asphalt you need for any paving area.
For estimation purposes only. Terms of Use
Density values are general estimating values. Actual material weights vary depending on mix design, supplier, temperature, and compaction. Always confirm density with your supplier's mix design or plant ticket.
A 50m × 7.5m driveway needs a 50mm wearing course at a density of 2300 kg/m³ with a 5% waste allowance.
Use this calculator when ordering hot mix asphalt for driveways, parking lots, road resurfacing, or any paving project where you need to estimate tonnage before placing a material order with the plant.
This is not a substitute for a formal mix design or engineering quantity takeoff on tender documents. For contract submissions or large-scale projects, verify quantities against approved drawings and specifications.
For a typical 50mm wearing course at 2300 kg/m³ density, you need approximately 115 kg of asphalt per square metre, or about 0.115 tonnes/m². This scales directly with thickness.
2300 kg/m³ is a safe general estimate for dense-graded hot mix asphalt. If possible, confirm the exact density with your supplier's plant ticket or mix design sheet for a more accurate number.
Waste accounts for compaction loss, spillage during placement, irregular edges, and minor overruns. 5-10% is typical; tighter, well-controlled jobs can use less, while complex or irregular shapes may need more.
Use the "Add Taper" option on this calculator. Enter the taper length and the start/end widths — it calculates the triangular taper area separately since it's not a uniform rectangle like the main paving area.