Asphalt Calculator Pakistan — Tonnage, Volume and Cost in ₨
Free asphalt and bitumen calculator for Pakistan. Tonnage, volume and ₨ cost to NHA General Specifications, with 60/70 and 80/100 binder guidance.
Calculator
Enter the dimensions of the area you are surfacing and this calculator returns the area, the volume in cubic metres, the weight, the tonnage to order and an estimated cost in PKR. It is set up for Pakistan: metric units by default, the mix designations used under NHA General Specifications and AASHTO material standards, and local pricing.
Quick answers
A 1,000 m² road at 50 mm of asphaltic concrete wearing course needs about 117 tons, or 129 tons with a 10% allowance.
| Area | 40 mm | 50 mm | 60 mm | 80 mm | 100 mm |
|---|---|---|---|---|---|
| 25 m² | 2.3 t | 2.9 t | 3.5 t | 4.7 t | 5.8 t |
| 50 m² | 4.7 t | 5.8 t | 7.0 t | 9.4 t | 11.7 t |
| 100 m² | 9.4 t | 11.7 t | 14.0 t | 18.7 t | 23.4 t |
| 200 m² | 18.7 t | 23.4 t | 28.1 t | 37.4 t | 46.8 t |
| 500 m² | 46.8 t | 58.5 t | 70.2 t | 93.6 t | 117.0 t |
| 1,000 m² | 93.6 t | 117.0 t | 140.4 t | 187.2 t | 234.0 t |
| 5,000 m² | 468.0 t | 585.0 t | 702.0 t | 936.0 t | 1,170.0 t |
| 7,300 m² | 683.3 t | 854.1 t | 1,024.9 t | 1,366.6 t | 1,708.2 t |
The tonnage formula
Weight (kg) = Volume (m³) × Density (kg/m³)
Tonnes = Weight (kg) ÷ 1,000
Combined: Tonnes = Area (m²) × Thickness (m) × 2.34
Worked example — a 240 m² area at 50 mm compacted:
- Volume: 240 × 0.05 = 12 m³
- Weight: 12 × 2,340 = 28,080 kg
- Tonnage: 28.1 tonnes
- With a 10% allowance: 30.9 tonnes to order
Density by mix type
Pakistani asphaltic concrete follows NHA General Specifications with penetration-grade binder — 60/70 in most of the country and 80/100 in the colder north. Wearing course density is 2,300–2,370 kg/m³.
| Designation | Description | Density (kg/m³) | Typical use | Standard |
|---|---|---|---|---|
| Asphaltic Concrete Wearing Course | Class A / Class B | 2,340 | 40–50 mm wearing course | NHA GS Item 305 |
| Asphaltic Base Course | ABC | 2,360 | 50–100 mm base | NHA GS Item 306 |
| Asphalt Treated Base | ATB | 2,350 | Heavy-duty base | NHA GS |
| Bituminous Macadam | Open-graded base | 2,180 | Profile correction | NHA GS |
| Triple Surface Treatment | TST / chip seal | — | Surface dressing | NHA GS Item 303 |
| SMA | Stone Matrix Asphalt | 2,400 | Heavy traffic corridors | AASHTO M 325 |
| Recycled asphalt (RAP) | Milled material | 2,000 | Base, shoulders, access tracks | AASHTO M 323 |
| Aggregate Base Course | Granular base | 2,200 | 150–300 mm | NHA GS Item 304 |
| Sub-base | Granular sub-base | 2,150 | 150–300 mm | NHA GS |
| Bitumen 60/70 | Penetration grade binder | 1,030 | Binder and tack coat | AASHTO M 20 |
| Bitumen 80/100 | Penetration grade, cold regions | 1,025 | Northern areas | AASHTO M 20 |
| Emulsion, tack coat | Cationic emulsion | 1,010 | Between lifts | NHA GS Item 302 |
Coverage per tonne
| Compacted thickness | m² per tonne | tonnes per 100 m² | tonnes per 1,000 m² |
|---|---|---|---|
| 20 mm | 21.4 | 4.68 | 46.8 |
| 25 mm | 17.1 | 5.85 | 58.5 |
| 30 mm | 14.2 | 7.02 | 70.2 |
| 40 mm | 10.7 | 9.36 | 93.6 |
| 50 mm | 8.5 | 11.70 | 117.0 |
| 60 mm | 7.1 | 14.04 | 140.4 |
| 70 mm | 6.1 | 16.38 | 163.8 |
| 80 mm | 5.3 | 18.72 | 187.2 |
| 100 mm | 4.3 | 23.40 | 234.0 |
| 150 mm | 2.8 | 35.10 | 351.0 |
| 200 mm | 2.1 | 46.80 | 468.0 |
Recommended thickness
| Application | Surface course | Binder / base course | Unbound base |
|---|---|---|---|
| Village access road | TST surface dressing | — | 150 mm ABC |
| Residential street | 40 mm AC wearing | 50 mm ABC | 200 mm aggregate base |
| Urban road | 50 mm AC wearing | 75 mm ABC | 250 mm aggregate base |
| Provincial highway | 50 mm AC wearing | 100 mm ABC | 250 mm base + 200 mm sub-base |
| National highway | 50 mm AC wearing | 125–175 mm ABC | 300 mm base + 250 mm sub-base |
| Motorway | 50 mm SMA or AC | 175–225 mm ABC | 300 mm base + 300 mm sub-base |
| Industrial yard | 50 mm AC | 100 mm ABC | 300 mm base |
| Parking area | 40 mm AC | 50 mm ABC | 200 mm base |
2026 prices
| Item | Low | Typical | High |
|---|---|---|---|
| Asphaltic Concrete Wearing Course per ton | ₨25,000 | ₨27,500 | ₨32,000 |
| Asphaltic Base Course per ton | ₨22,500 | ₨25,000 | ₨29,000 |
| Bituminous Macadam per ton | ₨19,500 | ₨22,000 | ₨26,000 |
| SMA per ton | ₨32,000 | ₨36,000 | ₨42,000 |
| RAP / recycled per ton | ₨3,000 | ₨5,500 | ₨9,000 |
| Aggregate Base Course per ton | ₨3,200 | ₨4,200 | ₨5,600 |
| Bitumen 60/70 per ton | ₨185,000 | ₨210,000 | ₨235,000 |
| Bitumen 80/100 per ton | ₨188,000 | ₨214,000 | ₨240,000 |
| Road surfacing per m² (AC 50 mm) | ₨1,450 | ₨1,850 | ₨2,400 |
| Full flexible pavement per m² | ₨4,200 | ₨5,800 | ₨8,200 |
Price by region
| Region | Material | Installed |
|---|---|---|
| Punjab (Lahore, Faisalabad) | ₨25,000 – ₨30,000 / ton | ₨1,500 – ₨2,200 / m² |
| Sindh (Karachi, Hyderabad) | ₨26,000 – ₨32,000 / ton | ₨1,600 – ₨2,400 / m² |
| Islamabad & Rawalpindi | ₨26,000 – ₨31,000 / ton | ₨1,550 – ₨2,300 / m² |
| Khyber Pakhtunkhwa | ₨26,500 – ₨32,500 / ton | ₨1,600 – ₨2,450 / m² |
| Balochistan | ₨29,000 – ₨38,000 / ton | ₨1,800 – ₨2,900 / m² |
| Gilgit-Baltistan | ₨32,000 – ₨42,000 / ton | ₨2,000 – ₨3,200 / m² |
| Azad Jammu & Kashmir | ₨29,000 – ₨37,000 / ton | ₨1,800 – ₨2,800 / m² |
Waste and compaction allowance
Loose material behind the paver occupies about 20% more volume than the compacted surface. Add edge trimming, material left in the lorry and normal measurement tolerance, and a 10% allowance is standard.
- 5% — simple machine-laid rectangle, experienced crew
- 10% — standard driveway or car park
- 15% — curved edges, several sections, hand-laid work
- 15–20% — recycled planings and cold-laid material
- 20–25% — unbound granular base
Common mistakes
- Using the loose thickness instead of the compacted design thickness.
- Failing to convert millimetres to metres before multiplying.
- Applying one density to every mix type.
- Measuring the excavation rather than the finished surface.
- Calculating a multi-layer structure as a single combined thickness.
- Forgetting the unbound base, which is often the larger tonnage.
- Not checking the plant's minimum order and small-load surcharge.
- Rounding down. A short order means a cold joint and a second mobilisation.
Measuring the site
Split the site into rectangles, triangles, circles and trapezoids and enter each as a separate area. Measure every dimension at three points and use the largest — surfaced areas are rarely as regular as they look. For a circular turning area, measure the diameter at the widest point and let the calculator apply π × r².
On a slope the true surface area exceeds the plan area. At a 10% gradient the difference is only 0.5% and can be ignored. Above 20%, multiply the length by √(1 + gradient²).
Frequently asked questions
How much asphalt do I need?
Multiply the area in square metres by the compacted thickness in metres, then by 2.34. A 100 m² area at 50 mm needs about 11.7 tonnes, or 12.9 tonnes with a 10% allowance.
What is the density of asphalt?
Pakistani asphaltic concrete follows NHA General Specifications with penetration-grade binder — 60/70 in most of the country and 80/100 in the colder north. Wearing course density is 2,300–2,370 kg/m³. The calculator uses 2,340 kg/m³ by default and lets you select any of the 12 mixes listed on this page.
How much does asphalt cost per tonne?
Around ₨25,000 to ₨32,000 in 2026, with ₨27,500 typical. Distance from the plant is the largest single factor.
How many square metres does a tonne cover?
About 8.5 m² at 50 mm compacted, 10.7 m² at 40 mm and 5.3 m² at 80 mm.
How many cubic metres is one tonne?
0.427 m³ at 2,340 kg/m³. The calculation is 1,000 ÷ density.
How thick should the surfacing be?
See the thickness table on this page. Domestic access typically takes a 40 mm AC wearing over 200 mm aggregate base; commercial and adopted work is considerably heavier and follows NHA General Specifications and AASHTO material standards.
What allowance should I add?
10% for standard work, 5% for a simple machine-laid rectangle, 15% for curved or hand-laid areas and 15–20% for recycled material.
Which standards apply?
Work in Pakistan follows NHA General Specifications and AASHTO material standards, administered by the National Highway Authority (NHA) and provincial highway departments.