Asphalt / Tarmac Calculator

Calculate asphalt or tarmac tonnage for paths, drives and paved areas.

Asphalt for a 3m by 1.5m area at 200mm

For an area measuring 3 metres by 1.5 metres at 200mm deep, this estimate includes asphalt or tarmac tonnage using the default density below.

Compacted volume0.90 m³
Asphalt required2.12 tonnes

Length (m)

Width (m)

Depth (mm)

Results - Asphalt / Tarmac Calculator

Compacted volume0.90 m³
Asphalt required2.12 tonnes

How this asphalt calculator works

It calculates compacted volume from area and depth, then converts that to tonnage using a practical asphalt density.

Frequently asked questions

The Asphalt / Tarmac Calculator gives a quick estimate for a project sized at 3m by 1.5m by 0.2m using the default assumptions shown on the page.

For most jobs you will need length, width and depth. The calculator then uses those figures to estimate the materials shown in the results.

A small wastage allowance is often sensible because cuts, breakages, uneven ground and product differences can affect the final quantity needed.

Yes, the calculator is set up for typical UK-style measurements and practical estimating assumptions, but final quantities should still be checked before ordering.

It is designed as a practical planning tool and should be checked against the exact product specification, build method and site conditions before ordering.