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Spain
USA
Area Comparison
Barcelona is 2.3x smaller than Boston
Population Comparison
Barcelona has 2.4x more people than Boston
Boston is significantly larger, covering 2.3 times the area of Barcelona. Boston spans 232 km² (90 mi²) while Barcelona covers 101 km² (39 mi²) — a difference of 131 km². You could fit Barcelona inside Boston approximately 2 times.
To put Barcelona's size in perspective, its area of 101 km² is roughly the same size as Paris (city proper). Meanwhile, Boston at 232 km² is roughly the same size as Amsterdam.
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
A historic city and academic center in the northeastern US. Nicknamed "Beantown", Boston has an area of 232 km² and is home to 0.7 million people. Its history stretches back to 1630. Visitors come for Harvard & MIT, Freedom Trail, Fenway Park, and much more. Getting around is easy with the MBTA (The T).
Boston's subway system (the T) opened in 1897, making it the oldest subway in North America
Looking beyond city limits, the Boston metropolitan area covers 11,700 km², which is 14.6x larger than greater Barcelona at 803 km². The Barcelona metro area is also more populous, with 5.6 million people compared to 4.9 million.
Barcelona has a population density of 16,436 people per km² — an extremely dense urban environment. Boston, with 2,931 people per km², is a moderately dense city. Barcelona is dramatically more crowded, with 5.6x the population density.
This comparison spans continents — Barcelona in Europe versus Boston in North America. Despite the geographic distance, comparing their sizes reveals surprising insights about how cities grow worldwide.
Barcelona has a Mediterranean climate while Boston experiences humid continental conditions. When it's noon in Barcelona, it's 6:00 AM in Boston — a 6-hour time difference.
Size Ratio
Barcelona fits inside Boston ~2 times
Density Gap
Barcelona is 5.6x more densely populated
Time Difference
6 hours apart
History
Barcelona is ~1,860 years older
The straight-line distance from Barcelona to Boston is 5,864 km (3,644 miles), with an estimated flight time of ~7h 24m. See full distance details, including timezone difference and city facts.
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