Buenos Aires
203 km²
Melbourne
9,993 km²
Argentina
Australia
Area Comparison
Buenos Aires is 49.2x smaller than Melbourne
Population Comparison
Buenos Aires has 1.7x fewer people than Melbourne
Melbourne is significantly larger, covering 49.2 times the area of Buenos Aires. Melbourne spans 9,993 km² (3,858 mi²) while Buenos Aires covers 203 km² (78 mi²) — a difference of 9,790 km². You could fit Buenos Aires inside Melbourne approximately 49 times.
To put Buenos Aires's size in perspective, its area of 203 km² is roughly the same size as Amsterdam. Meanwhile, Melbourne at 9,993 km² is about 1.6x the size of Shanghai.
Buenos Aires's footprint is roughly about 28,000 American football fields, 100 times the area of Monaco, or 60 times the area of Central Park — pick whichever unit feels intuitive. For Melbourne, that's about 1,400,000 American football fields, 170 times the area of Manhattan, or 95 times the area of Paris.
Buenos Aires, officially the Autonomous City of Buenos Aires, is the capital and largest city of Argentina. It is located on the southwest of the Río de la Plata. Buenos Aires is classified as an Alpha− global city, according to the GaWC 2024 ranking. The city proper has a population of 3.1 million and its urban area has a population of 16.7 million, making it the 21st most populous metropolitan area in the world.
Known as "Paris of South America", Buenos Aires covers 203 km² with a population of 3.1 million. The city was established in 1536. Buenos Aires is known for La Boca's Caminito, Recoleta Cemetery, Teatro Colón, among other attractions. The city's main transit system is the Buenos Aires Subte.
Buenos Aires is classified as an Alpha− global city according to the GaWC 2024 ranking.
Melbourne is the capital and most populous city of the Australian state of Victoria, and the second most-populous city in Australia. The city's name generally refers to a 9,993-square-kilometre (3,858 sq mi) area, comprising an urban agglomeration of 31 local government areas. The name is also used to specifically refer to the local government area named City of Melbourne, whose area is centred on the Melbourne central business district and some immediate surrounds.
Melbourne has an area of 9,993 km² and is home to 5.1 million people. Its history stretches back to 1835. Visitors come for Federation Square, Flinders Street Station, Melbourne Cricket Ground, and much more. Getting around is easy with the Melbourne Trams & Metro.
Melbourne's metropolitan area spans 9,993 square kilometers across 31 local government areas, making it Australia's second-most-populous city.
Looking beyond city limits, the Melbourne metropolitan area covers 9,993 km², which is 2.1x larger than greater Buenos Aires at 4,758 km². The Buenos Aires metro area is also more populous, with 15.2 million people compared to 5.1 million.
Buenos Aires has a population density of 15,074 people per km² — an extremely dense urban environment. Melbourne, with 508 people per km², is a relatively spread-out city. Buenos Aires is dramatically more crowded, with 29.7x the population density.
This comparison spans continents — Buenos Aires in South America versus Melbourne in Oceania. Despite the geographic distance, comparing their sizes reveals surprising insights about how cities grow worldwide.
Buenos Aires has a humid subtropical climate while Melbourne experiences oceanic conditions. When it's noon in Melbourne, it's midnight in Buenos Aires — a 13-hour time difference.
Size Ratio
Buenos Aires fits inside Melbourne ~49 times
Density Gap
Buenos Aires is 29.7x more densely populated
Time Difference
13 hours apart
History
Buenos Aires is ~299 years older
Buenos Aires covers 203 km². Cities with a similar urban footprint include Helsinki (214 km²), Amsterdam (219 km²), Stockholm (188 km²), Osaka (225 km²), or Boston (232 km²).
Melbourne covers 9,993 km². Cities with a similar urban footprint include Xi'an (10,097 km²), Wuhan (8,569 km²), Sydney (12,368 km²), Guangzhou (7,434 km²), or Chengdu (14,378 km²).
The straight-line distance from Buenos Aires to Melbourne is 11,610 km (7,214 miles), with an estimated flight time of ~14h 10m.
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