
Fuel prices in Perth, Australia, vary and are not controlled by the government. The average Unleaded 91 fuel price in Perth is around $1.82 per litre, while the average Unleaded 95 price is approximately $1.60 per litre. The Australian Competition and Consumer Commission (ACCC) monitors fuel prices and provides buying tips to help consumers save money on fuel. FuelWatch is another service that provides fuel price transparency, allowing users to find the best fuel deals in their area.
| Characteristics | Values |
|---|---|
| Average Unleaded fuel price | 178.5 cents |
| Average Unleaded 91 fuel price | $1.82 per litre |
| Average Octane-95 gasoline price | $1.60 per litre |
| Minimum Octane-95 gasoline price | $1.56 per litre |
| Maximum Octane-95 gasoline price | $1.65 per litre |
| Petrol price cycle patterns | Up and down in regular patterns |
| Petrol price cycle cities | Sydney, Melbourne, Brisbane, Adelaide, and Perth |
| Fuel price transparency | FuelWatch |
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What You'll Learn

Fuel prices in Perth vary
Fuel prices in Perth can change frequently, and there is no government intervention to control these variations. The ACCC monitors the industry and fuel prices for unleaded petrol, diesel, and LPG, but it does not set or control fuel prices or resolve individual complaints. Instead, petrol price cycles are influenced by the pricing decisions of various petrol retailers and can be challenging to predict.
To assist with finding the best fuel prices, Western Australians can utilize FuelWatch, a service that provides fuel price transparency. Fuel retailers in Western Australia are required to notify FuelWatch of their prices for the following day by 2 pm each day. These prices are then locked in and reported through FuelWatch services, including an interactive map that flags the lowest prices in an area. Consumers can also create a personalized My Account to receive tailored fuel price emails based on their locations and preferred days.
While FuelWatch provides valuable information, it is essential to note that the prices shown are standard cash prices and may not include discounts or charges, such as supermarket discounts or credit card fees. Additionally, FuelWatch data may not always be up-to-date, and prices can change during the day, especially in the Eastern state capital cities. Therefore, it is recommended to use a combination of resources, including fuel price apps and websites, to find the lowest fuel prices in one's area.
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FuelWatch for price transparency
FuelWatch is a service that provides fuel price transparency to Western Australians. Fuel retailers are required to notify FuelWatch of their prices for the following day by 2 p.m. each day. These prices are then locked in for 24 hours from 6 a.m. the next day and are reported on FuelWatch services.
FuelWatch has an interactive map that displays the standard cash prices for fuel in your area, excluding discounts and charges such as supermarket discounts or credit card fees. The map makes it easy for motorists to find the best fuel deal as it flags the lowest price in red. Users can search by suburb or postcode, and the 'Use my location' feature can be enabled to find fuel prices near them.
Fuel prices for the following day are available from 2:30 p.m. each afternoon on FuelWatch, allowing users to determine which day and station is the cheapest before purchasing fuel. The price cycle typically begins with a sharp increase on Wednesdays, followed by a decrease over the next six days. On the last day of the cycle, prices are at their lowest and are often at or below wholesale prices. Regional WA prices are generally more stable and do not follow this price cycle.
Motorists in Perth can use FuelWatch to stay informed about fuel prices in their area and make informed decisions about when and where to purchase fuel. The service also sends subscribers tailored fuel price emails, which can be personalized to specific days and areas of interest.
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Petrol price cycles
The retail price of petrol in Perth, Australia's fifth-largest city, fluctuates according to price cycles. These cycles are the result of pricing decisions made by various petrol retailers. The Australian Competition and Consumer Commission (ACCC) monitors and reports on the petrol industry and fuel prices for unleaded petrol, diesel, and LPG in Perth and over 190 regional locations.
The ACCC provides buying tips for motorists to help them save money on petrol. These tips are based on the movements in retail petrol price cycles and are updated on weekdays (at least Monday, Wednesday, and Friday) around midday. The ACCC also publishes charts showing the daily average regular unleaded petrol prices in Perth over the past 45 days.
The duration of petrol price cycles in Perth varies over time. In 2024, the average duration of petrol price cycles was around 45 days. However, the duration of each cycle can vary from cycle to cycle and by location. Historical data can be used to indicate or suggest the cheapest and most expensive days to buy petrol.
As of November 22, 2024, the current unleaded 91 average in Perth was 176.3 cents per liter (cpl), with a price range over the last week of 162.7 cpl to 220.9 cpl. The peak price for the week was expected to be around 219.9 cpl. The average unleaded fuel price in Perth was slightly lower the previous week.
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Average fuel price for ULP 91
The average fuel price for ULP 91 in Perth, Australia, can vary, with prices moving up and down in regular patterns. The Australian Competition and Consumer Commission (ACCC) monitors and reports on the retail fuel prices of unleaded petrol, diesel, and LPG in the country's five largest cities, including Perth.
On November 1, 2017, the average fuel price for ULP 91 in Perth was $1.82 per litre, a decrease of 9 cents from the previous day.
FuelWatch is a service that provides fuel price transparency to Western Australians. Fuel retailers are required to notify FuelWatch of their prices for the following day by 2 pm, and these prices are then locked in and reported. Consumers can use FuelWatch to find the best fuel deals in their area and receive tailored fuel price emails.
The ACCC also provides buying tips for motorists in Perth to help them save money on fuel purchases. These tips are updated three times a week and are based on the movements in retail petrol price cycles.
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Unleaded fuel prices
The price of unleaded fuel in Perth, Australia, varies over time. As of November 2017, the average fuel price for ULP 91 in Perth was $1.82 per litre. In July 2025, the average price of Octane-95 gasoline was 1.60 per litre, with a minimum of 1.56 on 12 May 2025 and a maximum of 1.65 on 14 April 2025. The current average unleaded fuel price in Perth is 178.5 cents per litre.
Fuel prices in Perth can fluctuate due to pricing decisions made by various petrol retailers, and they are not driven by movements in wholesale prices or underlying costs. This fluctuation is known as a "petrol price cycle". The Australian Competition and Consumer Commission (ACCC) monitors and reports on the petrol industry and fuel prices for unleaded petrol, diesel, and LPG in Australia's five largest cities, including Perth. The ACCC provides buying tips for consumers to save money on petrol, which are updated three times a week.
To keep track of fuel prices in Perth, residents can use FuelWatch, a service provided by the Western Australian government. Fuel retailers must notify FuelWatch of their prices for the following day by 2 pm each day, and these prices are then locked in for 24 hours from 6 am the next day. FuelWatch provides an interactive map that shows fuel prices in a specific area, making it easier for consumers to find the best deals. Additionally, FuelWatch sends tailored fuel price emails to subscribers, allowing them to personalise the days and areas they want to receive updates about.
It is worth noting that the prices shown on FuelWatch are standard cash prices and do not include discounts or charges, such as supermarket discounts or credit card fees. By utilising FuelWatch and other fuel price apps and websites, consumers can make more informed decisions about when and where to fill up their vehicles to take advantage of lower fuel prices in their area.
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Frequently asked questions
The fuel price in Perth, Australia, varies over time. As of November 2017, the average fuel price for ULP 91 was $1.82 per litre. In July 2025, the average gasoline price was 1.60 per litre.
Fuel prices in Perth can be tracked using the FuelWatch website or map. This platform provides fuel price transparency and shows the standard cash prices in your area, allowing you to choose when and where to refuel. You can also create a My Account to receive tailored fuel price emails.
The fuel price cycle refers to the fluctuation of petrol prices over time. In Australia's five largest cities, including Perth, prices can increase sharply and then gradually decrease before repeating the cycle. This cycle is influenced by pricing decisions made by petrol retailers. The duration of these cycles can vary between cities and over time.

























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