Petrol Prices — Week Ending 18 October 2026

This section tracks the average petrol and diesel prices across Australia's capital cities. The figures come from the Australian Institute of Petroleum's weekly reporting, cross-checked against the ACCC's monitoring, and each one is stamped with the week it covers so you always know how current it is.

We show a weekly average rather than a single servo's board price for a reason. Within any city the price at the pump swings from one station and one day to the next, so a lone reading tells you little. Because prices cycle in most capitals, the weekly average is the fair line for comparing a city against itself over time and against the other capitals.

The cost-to-drive index covers the fuel cost of driving Australia's major intercity corridors. Each trip page takes the road distance for the route, applies your car's fuel consumption, and uses the AIP weekly average price in the origin state's capital, for the week named on the page, to work out what the drive costs in petrol or diesel. Change the consumption or price to match your own vehicle and you get a figure tailored to you.

Each direction of a route has its own page. That's because the sensible default fuel price is the one in the city you're setting out from, and the two ends of a corridor can sit at quite different prices. Starting the calculation from the origin city keeps that default honest.