Distance Across Australia: East to West

The widest east–west span of mainland Australia is from **Steep Point, Western Australia** (26°09′S, 113°09′E) to **Cape Byron, New South Wales** (28°38′S, 153°38′E)—approximately **4,000 km (2,485 miles)**. Driving the most direct route (Eyre Highway + Sturt/Newell Highways) is ~4,100 km and takes 45+ hours non-stop; realistically 4–5 days with rest.

North–south extent (Cape York, QLD to South East Cape, TAS) is ~3,680 km (2,287 miles).