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USA
Argentina
Area Comparison
Boston is 1.1x larger than Buenos Aires
Population Comparison
Boston has 4.5x fewer people than Buenos Aires
In terms of area, Boston is 1.1x the size of Buenos Aires. Boston spans 232 km² (90 mi²) while Buenos Aires covers 203 km² (78 mi²) — a difference of 29 km².
To put Boston's size in perspective, its area of 232 km² is roughly the same size as Amsterdam. Meanwhile, Buenos Aires at 203 km² is roughly the same size as Amsterdam.
A historic city and academic center in the northeastern US. Known as "Beantown", Boston covers 232 km² with a population of 0.7 million. The city was established in 1630. Boston is known for Harvard & MIT, Freedom Trail, Fenway Park, among other attractions. The city's main transit system is the MBTA (The T).
Boston's subway system (the T) opened in 1897, making it the oldest subway in North America
Argentina's capital and a cultural powerhouse of South America. Often called "The Paris of South America", Buenos Aires has an area of 203 km² and is home to 3.1 million people. It was established in 1536. Visitors come for Tango dancing, La Boca neighborhood, Recoleta Cemetery, and much more. Getting around is easy with the Buenos Aires Subte.
Buenos Aires has more bookstores per capita than any other city in the world
Looking beyond city limits, the Boston metropolitan area covers 11,700 km², which is 2.5x 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 4.9 million.
Boston has a population density of 2,931 people per km² — a moderately dense city. Buenos Aires, with 15,074 people per km², is an extremely dense urban environment. Buenos Aires is dramatically more crowded, with 5.1x the population density.
This comparison spans continents — Boston in North America versus Buenos Aires in South America. Despite the geographic distance, comparing their sizes reveals surprising insights about how cities grow worldwide.
Boston has a humid continental climate while Buenos Aires experiences humid subtropical conditions. When it's noon in Buenos Aires, it's 10:00 AM in Boston — a 2-hour time difference.
Density Gap
Buenos Aires is 5.1x more densely populated
The straight-line distance from Boston to Buenos Aires is 8,655 km (5,378 miles), with an estimated flight time of ~10h 41m. See full distance details, including timezone difference and city facts.
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