Perth
6,417 km²
Sydney
12,368 km²
Australia
Australia
Area Comparison
Perth is 1.9x smaller than Sydney
Population Comparison
Perth has 2.5x fewer people than Sydney
Sydney is significantly larger, covering 1.9 times the area of Perth. Sydney spans 12,368 km² (4,775 mi²) while Perth covers 6,417 km² (2,478 mi²) — a difference of 5,951 km².
To put Perth's size in perspective, its area of 6,417 km² is roughly the same size as Shanghai. Meanwhile, Sydney at 12,368 km² is about 2.0x the size of Shanghai.
Perth's footprint is roughly about 899,000 American football fields, 110 times the area of Manhattan, or 61 times the area of Paris — pick whichever unit feels intuitive. For Sydney, that's about 1,700,000 American football fields, 120 times the area of Paris, or 100 times the area of San Francisco.
Perth is the capital city of Western Australia. It is the fourth-most-populous city in Australia, with a population of over 2.3 million within Greater Perth as of 2023. The world's most isolated major city by certain criteria, Perth is part of the South West Land Division of Western Australia, with most of Perth's metropolitan area on the Swan Coastal Plain between the Indian Ocean and the Darling Scarp.
Known as "City of Light", Perth covers 6,417 km² with a population of 2.1 million. The city was established in 1829. Perth is known for Swan River, Kings Park, Cottesloe Beach, among other attractions.
Perth is considered the world's most isolated major city by certain criteria, sitting on Australia's west coast.
Sydney is the capital city of the state of New South Wales, and is the most populous city in Australia. Located on Australia's east coast, the metropolis surrounds Sydney Harbour and extends about 80 kilometres (50 mi) from the Pacific Ocean in the east to the Blue Mountains in the west, and about 80 kilometres (50 mi) from Ku-ring-gai Chase National Park and the Hawkesbury River in the north and north-west, to the Royal National Park and Macarthur in the south and south-west.
Often called "Sydneysiders", Sydney has an area of 12,368 km² and is home to 5.3 million people. Its history stretches back to 1788. Visitors come for Sydney Opera House, Sydney Harbour Bridge, Bondi Beach, and much more. Getting around is easy with the Sydney Trains.
Sydney stretches roughly 80 km from the Pacific Ocean in the east to the Blue Mountains in the west.
Perth has a population density of 333 people per km² — a low-density, sprawling urban area. Sydney, with 429 people per km², is a low-density, sprawling urban area. Both cities have comparable density, though Sydney is slightly more compact.
Perth covers 6,417 km². Cities with a similar urban footprint include Shanghai (6,341 km²), Guangzhou (7,434 km²), Istanbul (5,461 km²), Wuhan (8,569 km²), or Melbourne (9,993 km²).
Sydney covers 12,368 km². Cities with a similar urban footprint include Chengdu (14,378 km²), Xi'an (10,097 km²), Melbourne (9,993 km²), Brisbane (15,826 km²), or Beijing (16,411 km²).
The straight-line distance from Perth to Sydney is 3,291 km (2,045 miles), with an estimated flight time of ~4h 22m.
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