Perth
6,417 km²
Rio de Janeiro
1,221 km²
Australia
Brazil
Area Comparison
Perth is 5.3x larger than Rio de Janeiro
Population Comparison
Perth has 3.2x fewer people than Rio de Janeiro
Yes — Perth is 5.3x larger than Rio de Janeiro by area. Perth spans 6,417 km² (2,478 mi²) while Rio de Janeiro covers 1,221 km² (471 mi²) — a difference of 5,196 km². You could fit Rio de Janeiro inside Perth approximately 5 times.
To put Perth's size in perspective, its area of 6,417 km² is roughly the same size as Shanghai. Meanwhile, Rio de Janeiro at 1,221 km² is about 1.3x smaller than London.
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. Rio de Janeiro, by comparison, equals about 171,000 American football fields, 21 times the area of Manhattan, or 12 times the area of Paris.
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.
Rio de Janeiro, also known simply as Rio, is the capital of the state of Rio de Janeiro. It is the second-most-populous city in Brazil after São Paulo and the sixth-most-populous city in the Americas.
Also known as "Cidade Maravilhosa", Rio de Janeiro has an area of 1,221 km² and is home to 6.8 million people. The city dates back to 1565. Visitors come for Christ the Redeemer, Sugarloaf Mountain, Copacabana beach, and much more. Getting around is easy with the MetrôRio.
Rio de Janeiro is the second-most-populous city in Brazil after São Paulo and the sixth-most-populous in the Americas.
Perth has a population density of 333 people per km² — a low-density, sprawling urban area. Rio de Janeiro, with 5,528 people per km², is a densely populated city. Rio de Janeiro is dramatically more crowded, with 16.6x the population density.
Size Ratio
Rio de Janeiro fits inside Perth ~5 times
Density Gap
Rio de Janeiro is 16.6x more densely populated
History
Rio de Janeiro is ~264 years older
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).
Rio de Janeiro covers 1,221 km². Cities with a similar urban footprint include San Antonio (1,209 km²), Lagos (1,172 km²), Rome (1,285 km²), Los Angeles (1,302 km²), or Hong Kong (1,114 km²).
The straight-line distance from Perth to Rio de Janeiro is 13,520 km (8,401 miles), with an estimated flight time of ~16h 24m.
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