Asphalt Calculator
Calculate asphalt tonnes and cost for a driveway or road from area and paving depth. Includes dense and porous mix densities.
2–3 in for driveways, 4–6 in for roads and parking.
Asphalt required
4.4 tonnes
4,399 kg
Volume
1.89 m³
Estimated cost
₹24,192
Weight uses the compacted mix density. Add 5% for rolling wastage — loose material settles when compacted.
Last updated: August 2026
How this calculator is verified
Checked by True Calculator automated test suite on
- Formula verified against a published worked example in the automated test suite
- Edge cases (zero, negative, boundary and unit-mismatch inputs) covered by unit tests
The full verification method is on our how we verify page. Found an error? Tell us and we will re-check it.
When to Use This Calculator
Asphalt work in India is quoted per tonne of hot mix, but owners plan in square feet of driveway — this calculator bridges the two. A house in Noida extending its driveway, a school in Pune paving its parking lot, or a colony in Chennai repairing its internal road all need the same estimate: area, depth, mix density, tonnes, rupees. Knowing the tonnes also helps arrange the plant delivery schedule, since hot mix must be laid within hours of leaving the plant. It applies equally to contractors bidding for small municipal road patches who must convert a tender's square-metre figure into the tonnes they will actually order from the plant.
How to Use This Calculator
- Step 1: Enter the driveway or road length and width in feet.
- Step 2: Enter the paving depth in inches — 2–3 in for driveways, 4–6 in for roads.
- Step 3: Choose dense or porous mix, and enter the price per tonne.
- Step 4: Read the volume, weight in tonnes and the material cost.
Worked Example
A builder laying a 20 ft × 10 ft driveway in Gurugram plans a 4-inch layer of dense asphalt. The volume is 20 × 10 × ⅓ = 66.7 cubic feet, or 1.89 m³. Dense-graded mix at 2,330 kg/m³ weighs 1.89 × 2330 = 4,400 kg, about 4.4 tonnes. At ₹5,500 per tonne of hot mix delivered, the material costs 4.4 × 5500 = ₹24,192 — before the roller, primer and labour, which contractors quote separately.
Tips and Common Mistakes
- •Tip 1: Add 5% for compaction loss — loose material settles under the roller.
- •Tip 2: A 3-inch driveway is fine for cars; go to 4–6 inches if heavy vehicles will park on it.
- •Tip 3: Porous mix at 2,000 kg/m³ weighs less, so the same area takes fewer tonnes.
- ✗Mistake 1: Paving at the depth a neighbour used without checking the expected vehicle load.
- ✗Mistake 2: Forgetting that quotes are per tonne of hot mix — weight, not area, drives the bill.
Frequently Asked Questions
How much asphalt do I need for a driveway?
Multiply length, width and paving depth to get the volume, then convert using the mix density. A 20 ft × 10 ft driveway at 4 inches needs about 4.4 tonnes of dense asphalt.
What depth is recommended for an asphalt driveway?
Around 2–3 inches for a light-duty residential driveway and 4–6 inches for roads and parking areas. Thicker layers last longer under heavy vehicle loads.
What is the density of compacted asphalt?
A dense-graded mix is about 2,330 kg/m³ after compaction; porous or open-graded mixes are lighter at about 2,000 kg/m³. The calculator includes both.
Should I add extra for compaction loss?
Yes. Loose material settles when rolled, so add about 5% to your order. Contractors typically quote per tonne of hot mix delivered, which this tool estimates.