Buenos Aires
203 km²
Santiago
838 km²
Argentina
Chile
Area Comparison
Buenos Aires is 4.1x smaller than Santiago
Population Comparison
Buenos Aires has 2.0x fewer people than Santiago
Santiago is significantly larger, covering 4.1 times the area of Buenos Aires. Santiago spans 838 km² (324 mi²) while Buenos Aires covers 203 km² (78 mi²) — a difference of 635 km². You could fit Buenos Aires inside Santiago approximately 4 times.
To put Buenos Aires's size in perspective, its area of 203 km² is roughly the same size as Amsterdam. Meanwhile, Santiago at 838 km² is roughly the same size as Berlin.
Picture Buenos Aires another way: its area is large enough to fit about 28,000 American football fields, 100 times the area of Monaco, or 60 times the area of Central Park. Santiago, by comparison, equals about 117,000 American football fields, 14 times the area of Manhattan, or 8 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.
Santiago, also known as Santiago de Chile, is the capital and largest city of Chile and one of the largest cities in the Americas. Located in the Chilean Central Valley within the Santiago Basin, between the Andes to the east and the Chilean Coastal Range to the west, it anchors the Santiago Metropolitan Region and its conurbation of Greater Santiago, which comprises more than forty communes and concentrates over a third of the national population and around 45% of Chile's GDP.
Also known as "Santiago de Chile", Santiago has an area of 838 km² and is home to 6.3 million people. It was established in 1541. Visitors come for Cerro San Cristóbal, Gran Torre Santiago, Plaza de Armas, and much more.
Santiago sits in the Chilean Central Valley between the Andes and the Coastal Range, anchoring over a third of Chile's population.
Buenos Aires has a population density of 15,074 people per km² — an extremely dense urban environment. Santiago, with 7,470 people per km², is a densely populated city. Buenos Aires is noticeably denser, packing 2.0 times more people per square kilometer.
Size Ratio
Buenos Aires fits inside Santiago ~4 times
Density Gap
Buenos Aires is 2.0x more densely populated
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).
Santiago covers 838 km². Cities with a similar urban footprint include Kyoto (828 km²), Berlin (892 km²), New York (783 km²), Hamburg (755 km²), or Bangalore (741 km²).
The straight-line distance from Buenos Aires to Santiago is 1,137 km (707 miles), with an estimated flight time of ~1h 50m.
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