Don't get pumped.
As of 22 July 2026, the cheapest Diesel in Tasmania is 199.9c per litre at Astron, Beauty Point — versus the Tasmania average of 223.4c (4.4c above the national average of 219.0c). Across 64 stations, Diesel ranges from 199.9c to 279.2c, so filling a 50-litre tank at the cheapest station saves about $11.75 over the state average. Over the past week the TAS average has risen 22.8c.
Compare Diesel across 64 stations in Tasmania. Updated 07:17 AM, 22 Jul 2026.
Over the past 88 days, Diesel in Tasmania has averaged 228.4c per litre, peaking at 264.8c on 25 April and bottoming out at 190.8c on 1 July — a range of 74.0c. Over the past week the TAS average has risen 22.8c. Timing a fill-up around that range matters: on a 50-litre tank, filling at the period low instead of the peak saves $37.00.
| Month | Average Diesel |
|---|---|
| April 2026 | 262.9c |
| May 2026 | 242.5c |
| June 2026 | 209.9c |
| July 2026 | 202.6c |
| Brand | Avg Price | Stations |
|---|---|---|
| United | 210.9c | 13 |
| Tas Petroleum | 212.1c | 5 |
| Ampol | 214.7c | 10 |
| Independent | 220.8c | 10 |
| NPD Self Serve | 240.9c | 3 |
| Caltex | 245.9c | 4 |
| BP | 246.4c | 3 |
| NPD | 248.5c | 3 |
The cheapest Diesel price in Tasmania right now is 199.9c per litre, across 64 stations tracked. The cheapest suburb right now is Devonport at a 212.4c average across 2 stations. Filling a 50-litre tank at the cheapest station instead of a station charging the state average of 223.4c saves $11.75. 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 Tasmania average for Diesel is 223.4c per litre — 4.4c above the national average of 219.0c. Prices at individual stations range from 199.9c to 279.2c, a spread of 79.3c that shows how much shopping around can save. Over the past week the TAS average has risen 22.8c. Petrolmate computes this average from every station reporting Diesel in Tasmania via the official government price feed, refreshed twice daily.
United is currently the cheapest brand for Diesel in Tasmania at 210.9c per litre average across 13 stations. The gap between the cheapest brand (United, 210.9c) and the priciest in our list (NPD, 248.5c) is 37.6c per litre — about $18.80 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 88 days, Diesel in Tasmania has averaged 228.4c per litre, peaking at 264.8c on 25 April and bottoming out at 190.8c on 1 July — a range of 74.0c. Over the past week the TAS average has risen 22.8c. Monthly averages for the past half-year are published in the table on this page. All figures come from official Tasmania government price reporting, aggregated daily by Petrolmate.