Work out the volume, weight and cost of tarmac for your driveway in seconds — no guesswork, just accurate budgeting.
Planning a new driveway and wondering how much tarmac you need? Use our free Tarmac Surface Calculator to instantly estimate the volume, weight, and cost of tarmac for your project. Whether you’re a homeowner resurfacing a drive or a contractor pricing up a job, this tool helps you budget accurately and avoid surprises.
Tarmac (also known as asphalt) is priced by the tonne, but most people think in metres when measuring their drive. Our calculator does the hard work for you by converting your dimensions into:
No more guesswork – just fast, accurate driveway planning.
Estimates use a tarmac density of 2.3 tonnes per cubic metre. Figures are a guide — your installer can confirm exact quantities.
Measure the length and width of your driveway in metres.
Estimate the depth of tarmac you want (usually 50–100mm).
Enter your local cost per tonne (you can ask your installer or check online).
Click Calculate – and get instant results!
For driveways, a typical tarmac depth is:
Our calculator supports any depth you enter, so feel free to experiment with different values to see how it affects cost.
The cost of tarmac is typically measured by the tonne, especially when quoting for large areas or resurfacing work. On average, the cost of tarmac per tonne ranges from £50 to £80, depending on the type of tarmac used (e.g. standard vs. SMA — stone mastic asphalt), delivery fees, and your location within Oldham.
For a standard residential driveway, you might require 2 to 5 tonnes of tarmac depending on the area’s size and depth. It’s also important to factor in the sub-base materials, labour, and finishing costs when budgeting for the full installation.
If you’re unsure how many tonnes your project will need, our team can provide a breakdown as part of your free site survey or guide you using our tarmac calculator.
This calculator is great for estimates, but prices can vary based on location, groundwork, edging, and finish. If you’d like a professional tarmac driveway quote, feel free to get in touch and we’ll be happy to help.
Prices range from £40–£70 per m² depending on groundwork and finish. Our calculator gives you an estimate based on weight, which you can compare to m² prices.
Yes – tarmac is usually more affordable and quicker to install than block paving. It’s ideal for large or long driveways.
At 50mm depth, 1 tonne covers about 8–10 m².
With proper installation and maintenance, tarmac driveways can last 15–20 years or more.
Looking to plan your next project with confidence? Visit our Calculators Page to explore a full range of handy tools that estimate the cost of tarmac driveways, resin surfaces, patio installations, and more. Each calculator gives you instant estimates based on your project size and chosen materials — helping you budget smarter and get accurate figures before you commit.
👉 Head to the Calculators Page and get started today.
