Asphalt Calculator
Use this asphalt calculator to estimate asphalt volume and weight for a rectangular driveway, road or paving area.
How to Use the Asphalt Calculator
Enter project length, width and asphalt depth to estimate paving volume and approximate material weight.
Practical Example
A 20 m by 3 m driveway paved 5 cm deep has a compacted volume of about 3 m³ before converting that volume to weight.
Factors That Affect the Result
Asphalt mix density, compaction, base condition, waste, thickness variation and supplier tonnage can change the final order.
Frequently Asked Questions
Does asphalt density vary?
Yes. Mix design and compaction affect density.
Should I add waste?
A small allowance is useful for placement losses and uneven surfaces.
Can I use this for driveways?
Yes. Enter the driveway dimensions and planned compacted depth.
Related Tools
Asphalt Quantity Planning
Enter the paved area and planned asphalt depth to estimate the material volume, then use an appropriate asphalt density to approximate weight or tonnage. Compaction, base condition and mix design can change the amount actually required on site. Driveways and parking areas may also need different compacted depths depending on traffic loads. Use the calculator for preliminary ordering, add a reasonable allowance, and confirm the supplier’s density and minimum delivery quantity before scheduling material.