London
1,572 km²
Perth
6,417 km²
UK
Australia
Area Comparison
London is 4.1x smaller than Perth
Population Comparison
London has 4.2x more people than Perth
Yes — Perth is 4.1x larger than London by area. Perth spans 6,417 km² (2,478 mi²) while London covers 1,572 km² (607 mi²) — a difference of 4,845 km². You could fit London inside Perth approximately 4 times.
To put London's size in perspective, its area of 1,572 km² is about 1.4x smaller than Tokyo (city proper). Meanwhile, Perth at 6,417 km² is roughly the same size as Shanghai.
In more relatable units, London's 1,572 km² is about 220,000 American football fields, 27 times the area of Manhattan, or 15 times the area of Paris. Perth, by comparison, equals about 899,000 American football fields, 110 times the area of Manhattan, or 61 times the area of Paris.
London is the capital and largest city of England and the United Kingdom, with a population of 9.1 million people in 2024. Its wider metropolitan area is the largest in Western Europe, with a population of 15.1 million. London stands on the River Thames in southeast England, at the head of a 50-mile (80 km) tidal estuary down to the North Sea, and has been a major settlement for nearly 2,000 years.
Known as "The Big Smoke", London covers 1,572 km² with a population of 9.0 million. The city was established in 43. London is known for Big Ben, Tower Bridge, Buckingham Palace, among other attractions. The city's main transit system is the London Underground.
London has been a major settlement for nearly 2,000 years, tracing its roots back to Roman times around 47 AD.
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.
Nicknamed "City of Light", Perth has an area of 6,417 km² and is home to 2.1 million people. The city dates back to 1829. Visitors come for Swan River, Kings Park, Cottesloe Beach, and much more.
Perth is considered the world's most isolated major city by certain criteria, sitting on Australia's west coast.
London has a population density of 5,712 people per km² — a densely populated city. Perth, with 333 people per km², is a low-density, sprawling urban area. London is dramatically more crowded, with 17.2x the population density.
Size Ratio
London fits inside Perth ~4 times
Density Gap
London is 17.2x more densely populated
History
London is ~1,786 years older
London covers 1,572 km². Cities with a similar urban footprint include Bangkok (1,569 km²), Bogotá (1,578 km²), São Paulo (1,521 km²), Johannesburg (1,644 km²), or Mexico City (1,485 km²).
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).
The straight-line distance from London to Perth is 14,479 km (8,997 miles), with an estimated flight time of ~17h 32m.
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