Cost to Drive from Perth to Adelaide
2,697 km via the Eyre Hwy · about 31 h 30 min driving · range spans 6–11 L/100 km at Perth's weekly average price
Fuel: Perth U91 avg, week ending 12 July 2026 · distance computed once from open routingThe Eyre Highway crosses the Nullarbor between Adelaide and Perth and is one of the most remote major drives in the country. Roadhouses are spaced far apart, so fuel planning isn't optional: fill up at every reasonable opportunity and never let the tank run low between stops. Fuel at the isolated roadhouses runs well above city averages, which is the cost of the remoteness. Carry water, plan your stops, and treat this as a serious long-haul drive.
Perth → Adelaide fuel cost
Default price: Perth average U91, week ending 12 July 2026. Fuel only — tolls, wear and rest stops not included.
The breakdown at typical consumption
| Car | L/100 km | Fuel used | One way | Return |
|---|---|---|---|---|
| Economical small car / hybrid | 6.0 | 161.8 L | $270.40 | $540.80 |
| Typical car | 8.0 | 215.8 L | $360.53 | $721.07 |
| Large SUV / ute | 11.0 | 296.7 L | $495.74 | $991.47 |
Frequently asked questions
- How much does it cost to drive from Perth to Adelaide?
- Between $270 and $496 in fuel one way at this week's Perth average price (167.1 c/L), depending on your car's consumption (6–11 L/100 km). A typical 8 L/100 km car uses about $360.53.
- How far is Perth to Adelaide by road?
- 2,697 km via the Eyre Hwy, around 31 h 30 min of driving without long stops.
Related trips
- Australian Institute of Petroleum — weekly prices reportverified
- OSRM open routing (road distance, computed at build)cross-checked
Fuel cost only — tolls, food and accommodation not included. Distance is the practical sealed-road driving route; drive time excludes long breaks. Prices along remote corridors run above city averages.