Buenos Aires
203 km²
Tehran
730 km²
Argentina
Iran
Area Comparison
Buenos Aires is 3.6x smaller than Tehran
Population Comparison
Buenos Aires has 3.0x fewer people than Tehran
Tehran is significantly larger, covering 3.6 times the area of Buenos Aires. Tehran spans 730 km² (282 mi²) while Buenos Aires covers 203 km² (78 mi²) — a difference of 527 km². You could fit Buenos Aires inside Tehran approximately 3 times.
To put Buenos Aires's size in perspective, its area of 203 km² is roughly the same size as Amsterdam. Meanwhile, Tehran at 730 km² is roughly the same size as New York City.
In more relatable units, Buenos Aires's 203 km² is about 28,000 American football fields, 100 times the area of Monaco, or 60 times the area of Central Park. For Tehran, that's about 102,000 American football fields, 12 times the area of Manhattan, or 7 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.
Tehran is the capital and largest city of Iran. It is also the capital of Tehran province and the administrative center for Tehran County and its Central District. With a population of around 9 million in the city, and 16.8 million in the metropolitan area, Tehran is the most populous city in Iran and West Asia, the second-largest metropolitan area in the Middle East after Cairo, and the 24th-most-populous metropolitan area in the world.
Tehran has an area of 730 km² and is home to 9.1 million people. The city dates back to 1524. Visitors come for Azadi Tower, Milad Tower, Golestan Palace, and much more. Getting around is easy with the Tehran Metro.
Tehran's metropolitan area holds 16.8 million people, making it the second-largest metropolitan area in the Middle East after Cairo.
Looking beyond city limits, the Buenos Aires metropolitan area covers 4,758 km², which is 2.1x larger than greater Tehran at 2,235 km². The Tehran metro area is also more populous, with 16.0 million people compared to 15.2 million.
Buenos Aires has a population density of 15,074 people per km² — an extremely dense urban environment. Tehran, with 12,507 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 Tehran 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 Tehran experiences hot-summer Mediterranean conditions. When it's noon in Tehran, it's 5.5:00 AM in Buenos Aires — a 6.5-hour time difference.
Size Ratio
Buenos Aires fits inside Tehran ~3 times
Time Difference
6.5 hours apart
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).
Tehran covers 730 km². Cities with a similar urban footprint include Singapore (733 km²), Bangalore (741 km²), Hamburg (755 km²), Nairobi (696 km²), or New York (783 km²).
The straight-line distance from Buenos Aires to Tehran is 13,775 km (8,559 miles), with an estimated flight time of ~16h 42m.
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