Petrol and diesel prices in Perth
Wholesale prices from the Australian Institute of Petroleum, updated every weekday. How we work these out
A fair price in Perth today is about 210c a litre for petrol and 258c for diesel.
That's the wholesale price plus the usual 10–15c retail margin, so anything from 205–210c for petrol and 253–258c for diesel is reasonable. Above 215c for petrol, you are paying well over a normal margin.
Wholesale petrol is 195.3c today. See what that means for you each week with the fuel cost calculator.
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The last 12 weeks
Other capital cities
Perth wholesale price history
Terminal gate prices in cents a litre, including GST and excise.
| Unleaded | Diesel | |
|---|---|---|
| Latest, 12 Nov 2026 | 195.3 | 242.5 |
| A week earlier | −17.8 from 213.1 | −8.0 from 250.5 |
| Four weeks earlier | −39.0 from 234.3 | −10.6 from 253.1 |
| A year earlier | +31.0 from 164.3 | +68.0 from 174.5 |
| Lowest in the past year | 146.5 29 Jun 2026 | 154.5 13 Jan 2026 |
| Highest in the past year | 249.5 26 Mar 2026 | 323.8 9 Apr 2026 |
| Rank among the 7 capitals (1st is cheapest) | 1st | 1st |
| Compared with the national average | −3.4 national 198.7 | −8.0 national 250.5 |
| Record high since 2004 | 249.5 26 Mar 2026 | 323.8 9 Apr 2026 |
Average by year
| Year | Unleaded average | Unleaded range | Diesel average | Diesel range |
|---|---|---|---|---|
| 2026 | 186.0 | 146.5–249.5 | 217.0 | 154.5–323.8 |
| 2025 | 162.4 | 153.8–172.0 | 166.8 | 154.8–181.5 |
| 2024 | 170.7 | 155.2–188.9 | 172.5 | 155.8–188.9 |
| 2023 | 173.4 | 160.3–196.1 | 181.2 | 160.0–209.1 |
| 2022 | 168.7 | 143.6–199.1 | 189.6 | 145.8–225.0 |
| 2021 | 133.0 | 108.2–156.7 | 130.0 | 109.1–150.6 |
| 2020 | 104.6 | 80.1–134.8 | 107.9 | 89.4–140.6 |
| 2019 | 129.1 | 111.7–139.4 | 134.9 | 120.8–142.1 |
The current year is year to date. Prices from the Australian Institute of Petroleum.
How Perth compares
Wholesale petrol in Perth is 31.0c dearer than a year ago, a rise of 19%. Over the past year it has swung between 146.5c in June 2026 and 249.5c in March 2026. Among the seven capitals Perth is the cheapest for petrol today, 3.4c below the national average. Diesel costs 47.2c a litre more than petrol at the terminal gate.
What is a terminal gate price?
It is the wholesale price of fuel collected from a terminal. It already includes crude oil and refining costs, shipping, fuel excise and GST, so the gap between the terminal gate price and the price on the sign is the retail margin. The Australian Institute of Petroleum publishes the average of the major suppliers' prices each weekday.
Why the price on the sign moves
Retail prices in the larger capitals move in cycles, so the same servo can be fair one week and expensive the next. Wholesale prices follow international prices for refined petrol and diesel, which track Brent crude, converted at the exchange rate. See oil and currency markets for what is driving them now.
Buying fuel in Perth
Where Perth's fuel comes from
Perth has had no operating refinery since BP closed its Kwinana refinery in 2021 and converted it to an import terminal. Fuel arrives by tanker, with the shortest voyage from Singapore of the large capitals.
Over the ten years from 2016 to 2025 Perth's wholesale petrol averaged 0.6c a litre below the national price and diesel 0.8c below, the cheapest of the seven capitals. Perth's petrol has been below the national average in every year since 2017. How the capitals compare.
The price cycle
Perth has a weekly petrol price cycle, the shortest and most regular in the country. For years the pattern has been cheapest on Tuesday, with prices jumping on Wednesday. Diesel does not cycle. How price cycles work.
Checking servo prices in Western Australia
Western Australia's FuelWatch, running since 2001, requires every servo to tell the government by 2pm what it will charge tomorrow, and to hold that price for 24 hours from 6am. Tomorrow's prices are published each afternoon. From May 2026 the scheme covers every regional servo too.
Check FuelWatch for tomorrow's prices in the afternoon. If tomorrow is the Wednesday jump, fill up today.
Read next
See also Oil prices and the dollar · Fuel price guides · Why fuel price data is hidden