Don't get pumped.
As of 22 October 2026, the cheapest Unleaded Petrol in Western Australia is 195.0c per litre at Independent, Meadow — versus the Western Australia average of 245.9c (3.5c above the national average of 242.4c). Across 933 stations, Unleaded Petrol ranges from 195.0c to 376.0c, so filling a 50-litre tank at the cheapest station saves about $25.45 over the state average. Over the past week the WA average has risen 5.4c.
Compare Unleaded Petrol across 933 stations in Western Australia. Updated 01:54 PM, 22 Oct 2026.
Over the past 90 days, Unleaded Petrol in Western Australia has averaged 255.4c per litre, peaking at 272.8c on 12 August and bottoming out at 205.7c on 31 July — a range of 67.1c. Over the past week the WA average has risen 5.4c. Timing a fill-up around that range matters: on a 50-litre tank, filling at the period low instead of the peak saves $33.55.
| Month | Average Unleaded Petrol |
|---|---|
| April 2026 | 188.2c |
| May 2026 | 202.8c |
| June 2026 | 228.3c |
| July 2026 | 247.1c |
| August 2026 | 258.6c |
| September 2026 | 253.6c |
| October 2026 | 240.6c |
The cheapest Unleaded Petrol price in Western Australia right now is 195.0c per litre, across 933 stations tracked. The cheapest suburb right now is Oakford at a 219.3c average across 2 stations. Filling a 50-litre tank at the cheapest station instead of a station charging the state average of 245.9c saves $25.45. See the live cheapest-stations list on this page for the exact station, address and suburb. Prices update twice daily from the official state government feed, so the cheapest station can change between the morning and afternoon updates — check again before you drive.
The current Western Australia average for Unleaded Petrol is 245.9c per litre — 3.5c above the national average of 242.4c. Prices at individual stations range from 195.0c to 376.0c, a spread of 181.0c that shows how much shopping around can save. Over the past week the WA average has risen 5.4c. Petrolmate computes this average from every station reporting Unleaded Petrol in Western Australia via the official government price feed, refreshed twice daily.
Burk is currently the cheapest brand for Unleaded Petrol in Western Australia at 223.1c per litre average across 13 stations. The gap between the cheapest brand (Burk, 223.1c) and the priciest in our list (7-Eleven, 239.2c) is 16.1c per litre — about $8.05 per 50-litre tank. Brand averages are recalculated twice daily from official price data, so the cheapest brand can change with the price cycle.
Over the past 90 days, Unleaded Petrol in Western Australia has averaged 255.4c per litre, peaking at 272.8c on 12 August and bottoming out at 205.7c on 31 July — a range of 67.1c. Over the past week the WA average has risen 5.4c. Monthly averages for the past half-year are published in the table on this page. All figures come from official Western Australia government price reporting, aggregated daily by Petrolmate.