Distance from California to Australia's East Coast: Approximately 7,456 Miles

The great-circle (straight-line) distance from the California coast (e.g., San Francisco, ~37.7° N, 122.4° W) to Australia's east coast (e.g., Sydney, ~33.9° S, 151.2° E) is approximately 12,000 kilometers (7,456 miles).

Flight Distance and Time

• Nonstop flights: SFO/LAX → SYD/MEL/BNE: 13,000–14,000 km (8,100–8,700 mi) due to routing, winds; 14.5–15.5 hours.
• Typical routing: Great circle arcs south of Hawaii, across equator, over Coral Sea.
• Time zones: Crosses International Date Line; lose a day westbound, gain eastbound.

Comparison

• California → Hawaii: ~3,800 km (2,400 mi).
• California → Tokyo: ~8,200 km (5,100 mi).
• California → Sydney: ~12,000 km (7,456 mi).

This vast distance underscores the Pacific's immensity—Australia is farther from California than Europe is from New York.