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Argentina
Italy
Area Comparison
Buenos Aires is 6.3x smaller than Rome
Population Comparison
Buenos Aires has 1.1x more people than Rome
Rome is significantly larger, covering 6.3 times the area of Buenos Aires. Rome spans 1,285 km² (496 mi²) while Buenos Aires covers 203 km² (78 mi²) — a difference of 1,082 km². You could fit Buenos Aires inside Rome approximately 6 times.
To put Buenos Aires's size in perspective, its area of 203 km² is roughly the same size as Amsterdam. Meanwhile, Rome at 1,285 km² is about 1.2x smaller than London.
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
Italy's capital and a city of ancient history. Often called "The Eternal City", Rome has an area of 1,285 km² and is home to 2.9 million people. The city dates back to 753 BC. Visitors come for Colosseum, Vatican City, Trevi Fountain, and much more. Getting around is easy with the Rome Metro.
Rome contains an entire independent country within its borders — Vatican City, the world's smallest state
Looking beyond city limits, the Rome metropolitan area covers 5,352 km², which is 1.1x 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 4.3 million.
Buenos Aires has a population density of 15,074 people per km² — an extremely dense urban environment. Rome, with 2,233 people per km², is a moderately dense city. Buenos Aires is dramatically more crowded, with 6.8x the population density.
This comparison spans continents — Buenos Aires in South America versus Rome 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 Rome experiences Mediterranean conditions. When it's noon in Rome, it's 8:00 AM in Buenos Aires — a 4-hour time difference.
Size Ratio
Buenos Aires fits inside Rome ~6 times
Density Gap
Buenos Aires is 6.8x more densely populated
Time Difference
4 hours apart
History
Rome is ~2,289 years older
The straight-line distance from Buenos Aires to Rome is 11,152 km (6,929 miles), with an estimated flight time of ~13h 37m. See full distance details, including timezone difference and city facts.
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