Asphalt Table: Asphalt required by Length
Reference table of asphalt required for Asphalt across a range of length values — exact, engine-computed figures you can read off at a glance.
Asphalt Calculator
Verified formula Updated Jun 2026 Private — runs on your device
Verified formula
Private
Asphalt required
12.00
- Volume
- 5.000
For general information only — not financial, tax, legal or medical advice. Verify before you rely on it.
How to use the Asphalt Calculator
The Asphalt Calculator works out your asphalt required, along with 1 related figure in an instant. Enter length, width and thickness and the result updates as you type — it is free, needs no sign-up, and runs entirely in your browser so your figures stay private.
- Enter the length.
- Enter the width.
- Enter the thickness.
- Enter the asphalt density.
- Read off your asphalt required, together with volume — the calculator updates automatically, with no button to press.
Formula
The Asphalt Calculator uses the formula:
Asphalt required = Length × Width × Thickness × Asphalt density
Worked example
For example, with length of 20 m, width of 5 m, thickness of 0.05 m and asphalt density of 2.4 t/m³, the asphalt required is 12.00.
| Length | 20 m |
|---|---|
| Width | 5 m |
| Thickness | 0.05 m |
| Asphalt density | 2.4 t/m³ |
| Asphalt required | 12.00 |
|---|---|
| Volume | 5.000 |
Results are estimates for educational use, not professional advice.
Key terms explained
- Density
- Mass per unit volume, calculated as mass ÷ volume.
- Volume
- The amount of three-dimensional space an object occupies, measured in cubic units.
Frequently asked questions
Multiply length, width and thickness for the volume, then multiply by density. A 20 by 5 m area at 50 mm and 2.4 t/m³ needs 12 tonnes.
Compacted hot-mix asphalt is about 2.3–2.5 t/m³. Use the figure from your supplier for accuracy.
Driveways often use 40–50 mm and roads more, depending on traffic. Convert millimetres to metres for the input.
Yes. Add about 5–10% for compaction, edges and uneven ground.
The Asphalt Calculator uses the formula: Asphalt required = Length × Width × Thickness × Asphalt density. For example, with length of 20 m, width of 5 m, thickness of 0.05 m and asphalt density of 2.4 t/m³, the asphalt required is 12.00.
Enter the length. Enter the width. Enter the thickness. Enter the asphalt density. Read off your asphalt required, together with volume — the calculator updates automatically, with no button to press.
Related guides
How to Calculate Asphalt: Formula, Steps & Examples
Learn how to calculate Asphalt — the formula explained step by step, with worked examples and a free calculator to check your answer.