Loading map...
Loading map...
Argentina
Japan
Area Comparison
Buenos Aires is 1.1x smaller than Osaka
Population Comparison
Buenos Aires has 1.1x more people than Osaka
Osaka is significantly larger, covering 1.1 times the area of Buenos Aires. Osaka spans 225 km² (87 mi²) while Buenos Aires covers 203 km² (78 mi²) — a difference of 22 km².
To put Buenos Aires's size in perspective, its area of 203 km² is roughly the same size as Amsterdam. Meanwhile, Osaka at 225 km² is roughly the same size as Amsterdam.
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
Japan's third-largest city and a culinary capital. Also known as "The Kitchen of Japan", Osaka has an area of 225 km² and is home to 2.8 million people. Its history stretches back to 645. Visitors come for Osaka Castle, Dotonbori district, Street food culture, and much more. Getting around is easy with the Osaka Metro.
Osaka residents spend more on food per capita than any other city in Japan
Looking beyond city limits, the Osaka metropolitan area covers 13,228 km², which is 2.8x larger than greater Buenos Aires at 4,758 km². The Osaka metro area is also more populous, with 19.3 million people compared to 15.2 million.
Buenos Aires has a population density of 15,074 people per km² — an extremely dense urban environment. Osaka, with 12,222 people per km², is an extremely dense urban environment. Both cities have comparable density, though Buenos Aires is slightly more compact.
This comparison spans continents — Buenos Aires in South America versus Osaka in Asia. Despite the geographic distance, comparing their sizes reveals surprising insights about how cities grow worldwide.
Both cities share a humid subtropical climate, though local geography creates distinct microclimates in each. When it's noon in Osaka, it's midnight in Buenos Aires — a 12-hour time difference.
Time Difference
12 hours apart
History
Osaka is ~891 years older
The straight-line distance from Buenos Aires to Osaka is 18,746 km (11,648 miles), with an estimated flight time of ~22h 33m. See full distance details, including timezone difference and city facts.
Want to explore more? Compare city sizes for any two cities worldwide, or share your location live with friends.