Buenos Aires
203 km²
Lisbon
100 km²
Argentina
Portugal
Area Comparison
Buenos Aires is 2.0x larger than Lisbon
Population Comparison
Buenos Aires has 5.6x more people than Lisbon
Yes — Buenos Aires is 2.0x larger than Lisbon by area. Buenos Aires spans 203 km² (78 mi²) while Lisbon covers 100 km² (39 mi²) — a difference of 103 km². You could fit Lisbon inside Buenos Aires approximately 2 times.
To put Buenos Aires's size in perspective, its area of 203 km² is roughly the same size as Amsterdam. Meanwhile, Lisbon at 100 km² is roughly the same size as Paris (city proper).
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. Lisbon, by comparison, equals about 14,000 American football fields, 50 times the area of Monaco, or 29 times the area of Central Park.
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.
Lisbon is the capital and most populous city of Portugal, with an estimated population of 575,739 as of 2024, within its administrative limits and 3,028,000 within the metropolis, as of 2025. Lisbon is mainland Europe's westernmost capital city, and the only one along the Atlantic coast, the others being on islands. The city lies in the western portion of the Iberian Peninsula, on the northern shore of the River Tagus.
Also known as "City of Seven Hills", Lisbon has an area of 100 km² and is home to 0.6 million people. Its history stretches back to 1200 BC. Visitors come for Belém Tower, Jerónimos Monastery, Tram 28, and much more. Getting around is easy with the Lisbon Metro.
Lisbon is mainland Europe's westernmost capital city and the only European capital along the Atlantic coast.
Looking beyond city limits, the Buenos Aires metropolitan area covers 4,758 km², which is 1.6x larger than greater Lisbon at 3,015 km². The Buenos Aires metro area is also more populous, with 15.2 million people compared to 2.9 million.
Buenos Aires has a population density of 15,074 people per km² — an extremely dense urban environment. Lisbon, with 5,500 people per km², is a densely populated city. Buenos Aires is noticeably denser, packing 2.7 times more people per square kilometer.
This comparison spans continents — Buenos Aires in South America versus Lisbon in Europe. Despite the geographic distance, comparing their sizes reveals surprising insights about how cities grow worldwide.
Buenos Aires has a humid subtropical climate while Lisbon experiences Mediterranean conditions. When it's noon in Lisbon, it's 9:00 AM in Buenos Aires — a 3-hour time difference.
Size Ratio
Lisbon fits inside Buenos Aires ~2 times
Density Gap
Buenos Aires is 2.7x more densely populated
Time Difference
3 hours apart
History
Lisbon is ~2,736 years older
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).
Lisbon covers 100 km². Cities with a similar urban footprint include Barcelona (101 km²), Paris (105 km²), Copenhagen (91 km²), Zurich (88 km²), or Vancouver (115 km²).
The straight-line distance from Buenos Aires to Lisbon is 9,599 km (5,965 miles), with an estimated flight time of ~11h 48m.
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