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Spain
Iran
Area Comparison
Barcelona is 7.2x smaller than Tehran
Population Comparison
Barcelona has 5.5x fewer people than Tehran
In terms of area, Tehran is 7.2x the size of Barcelona. Tehran spans 730 km² (282 mi²) while Barcelona covers 101 km² (39 mi²) — a difference of 629 km². You could fit Barcelona inside Tehran approximately 7 times.
To put Barcelona's size in perspective, its area of 101 km² is roughly the same size as Paris (city proper). Meanwhile, Tehran at 730 km² is roughly the same size as 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
Iran's capital and largest city. Also known as "The City of 72 Nations", Tehran has an area of 730 km² and is home to 9.1 million people. It was established in 1524. Visitors come for Golestan Palace, Grand Bazaar, Milad Tower, and much more. Getting around is easy with the Tehran Metro.
Tehran sits at the foot of Mount Damavand, the highest volcano in Asia at 5,610 meters
Looking beyond city limits, the Tehran metropolitan area covers 2,235 km², which is 2.8x larger than greater Barcelona at 803 km². The Tehran metro area is also more populous, with 16.0 million people compared to 5.6 million.
Barcelona has a population density of 16,436 people per km² — an extremely dense urban environment. Tehran, with 12,507 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 Tehran in Asia. Despite the geographic distance, comparing their sizes reveals surprising insights about how cities grow worldwide.
Barcelona has a Mediterranean climate while Tehran experiences hot-summer Mediterranean conditions. When it's noon in Tehran, it's 9.5:00 AM in Barcelona — a 2.5-hour time difference.
Size Ratio
Barcelona fits inside Tehran ~7 times
Density Gap
Barcelona is 1.3x more densely populated
History
Barcelona is ~1,754 years older
The straight-line distance from Barcelona to Tehran is 4,270 km (2,653 miles), with an estimated flight time of ~5h 31m. See full distance details, including timezone difference and city facts.
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