Unleaded 91 petrol prices in Australia
Petrol prices in Australian capital cities usually follow a weekly cycle, with lower prices early in the week and higher prices around weekends, though the pattern differs by city.
The board shows each capital city's average and lowest unleaded 91 price, whether the figure is live or an estimate, and when it was updated. Use the cost box to see what a few cents per litre means on your next fill.
Last reviewed by the myCalculator Editorial Team. General information only, not financial or tax advice.
Frequently asked questions
What is the cheapest day to buy petrol?
It depends on the city. Many capitals have a weekly cycle where prices fall early in the week and rise toward the weekend. Check your city's board before you fill up.
Where does this petrol price data come from?
From official state fuel price schemes where available (Victoria, Queensland, Western Australia, South Australia, and NSW and ACT). Each row is labelled live or estimate, with a last-updated time.
How much does it cost to fill a tank?
Litres multiplied by price per litre. A 50 L tank at $1.90 per litre costs $95. The cost box above shows the extra cost of a price change.
How can I lower my petrol costs?
Fill when your city's price cycle is low, keep tyres inflated, and compare the real cost per kilometre of your car with the fuel cost per km calculator.