Spain
South Korea
Area Comparison
Barcelona is 6.0x smaller than Seoul
Population Comparison
Barcelona has 5.9x fewer people than Seoul
Seoul is significantly larger, covering 6.0 times the area of Barcelona. Seoul spans 605 km² (234 mi²) while Barcelona covers 101 km² (39 mi²) — a difference of 504 km². You could fit Barcelona inside Seoul approximately 5 times.
To put Barcelona's size in perspective, its area of 101 km² is roughly the same size as Paris (city proper). Meanwhile, Seoul at 605 km² is about 1.3x smaller than New York City.
A Mediterranean city known for Gaudi's architecture. Known as "The City of Counts", Barcelona covers 101 km² with a population of 1.7 million. The city was founded around 230 BC. Barcelona is known for Sagrada Família, Park Güell, La Rambla, among other attractions. The city's main transit system is the Barcelona Metro (TMB).
Gaudí's Sagrada Família has been under construction since 1882 and is expected to be completed around 2026
Capital of South Korea and a major tech hub. Often called "The Soul of Asia", Seoul has an area of 605 km² and is home to 9.8 million people. Its history stretches back to 18 BC. Visitors come for Gyeongbokgung Palace, Gangnam district, K-pop culture, and much more. Getting around is easy with the Seoul Metro.
Seoul's metro area contains nearly half of South Korea's entire population
Looking beyond city limits, the Seoul metropolitan area covers 11,704 km², which is 14.6x larger than greater Barcelona at 803 km². The Seoul metro area is also more populous, with 25.5 million people compared to 5.6 million.
Barcelona has a population density of 16,436 people per km² — an extremely dense urban environment. Seoul, with 16,149 people per km², is an extremely dense urban environment. Both cities have comparable density, though Barcelona is slightly more compact.
This comparison spans continents — Barcelona in Europe versus Seoul in Asia. Despite the geographic distance, comparing their sizes reveals surprising insights about how cities grow worldwide.
Barcelona has a Mediterranean climate while Seoul experiences humid continental conditions. When it's noon in Seoul, it's 4:00 AM in Barcelona — a 8-hour time difference.
Size Ratio
Barcelona fits inside Seoul ~5 times
Time Difference
8 hours apart
History
Barcelona is ~212 years older
The straight-line distance from Barcelona to Seoul is 9,602 km (5,966 miles), with an estimated flight time of ~11h 48m. See full distance details, including timezone difference and city facts.
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