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Argentina
Japan
Area Comparison
Buenos Aires is 10.8x smaller than Tokyo
Population Comparison
Buenos Aires has 4.6x fewer people than Tokyo
Tokyo is significantly larger, covering 10.8 times the area of Buenos Aires. Tokyo spans 2,194 km² (847 mi²) while Buenos Aires covers 203 km² (78 mi²) — a difference of 1,991 km². You could fit Buenos Aires inside Tokyo approximately 10 times.
To put Buenos Aires's size in perspective, its area of 203 km² is roughly the same size as Amsterdam. Meanwhile, Tokyo at 2,194 km² is about 1.1x smaller than Moscow.
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 capital and the world's most populous metropolitan area. Also known as "The Big Mikan", Tokyo has an area of 2,194 km² and is home to 14.0 million people. Its history stretches back to 1457. Visitors come for Shibuya Crossing, Tokyo Tower, Tsukiji Market, and much more. Getting around is easy with the Tokyo Metro & JR East.
Greater Tokyo is the world's largest metropolitan economy, surpassing the GDP of most countries
Looking beyond city limits, the Tokyo metropolitan area covers 13,572 km², which is 2.9x larger than greater Buenos Aires at 4,758 km². The Tokyo metro area is also more populous, with 37.4 million people compared to 15.2 million.
Buenos Aires has a population density of 15,074 people per km² — an extremely dense urban environment. Tokyo, with 6,363 people per km², is a densely populated city. Buenos Aires is noticeably denser, packing 2.4 times more people per square kilometer.
This comparison spans continents — Buenos Aires in South America versus Tokyo 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 Tokyo, it's midnight in Buenos Aires — a 12-hour time difference.
Size Ratio
Buenos Aires fits inside Tokyo ~10 times
Density Gap
Buenos Aires is 2.4x more densely populated
Time Difference
12 hours apart
The straight-line distance from Buenos Aires to Tokyo is 18,373 km (11,417 miles), with an estimated flight time of ~22h 7m. See full distance details, including timezone difference and city facts.
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