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Argentina
South Korea
Area Comparison
Buenos Aires is 3.0x smaller than Seoul
Population Comparison
Buenos Aires has 3.2x fewer people than Seoul
In terms of area, Seoul is 3.0x the size of Buenos Aires. Seoul spans 605 km² (234 mi²) while Buenos Aires covers 203 km² (78 mi²) — a difference of 402 km². You could fit Buenos Aires inside Seoul approximately 2 times.
To put Buenos Aires's size in perspective, its area of 203 km² is roughly the same size as Amsterdam. Meanwhile, Seoul at 605 km² is about 1.3x smaller than New York City.
Argentina's capital and a cultural powerhouse of South America. Known as "The 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 Tango dancing, La Boca neighborhood, Recoleta Cemetery, among other attractions. The city's main transit system is the Buenos Aires Subte.
Buenos Aires has more bookstores per capita than any other city in the world
Capital of South Korea and a major tech hub. Often called "The Soul of Asia", Seoul has an area of 605 km² and is home to 9.8 million people. The city dates back to 18 BC. Visitors come for Gyeongbokgung Palace, Gangnam district, K-pop culture, and much more. Getting around is easy with the Seoul Metro.
Seoul's metro area contains nearly half of South Korea's entire population
Looking beyond city limits, the Seoul metropolitan area covers 11,704 km², which is 2.5x larger than greater Buenos Aires at 4,758 km². The Seoul metro area is also more populous, with 25.5 million people compared to 15.2 million.
Buenos Aires has a population density of 15,074 people per km² — an extremely dense urban environment. Seoul, with 16,149 people per km², is an extremely dense urban environment. Both cities have comparable density, though Seoul is slightly more compact.
This comparison spans continents — Buenos Aires in South America versus Seoul in Asia. Despite the geographic distance, comparing their sizes reveals surprising insights about how cities grow worldwide.
Buenos Aires has a humid subtropical climate while Seoul experiences humid continental conditions. When it's noon in Seoul, it's midnight in Buenos Aires — a 12-hour time difference.
Size Ratio
Buenos Aires fits inside Seoul ~2 times
Time Difference
12 hours apart
History
Seoul is ~1,554 years older
The straight-line distance from Buenos Aires to Seoul is 19,432 km (12,074 miles), with an estimated flight time of ~23h 22m. See full distance details, including timezone difference and city facts.
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