Iran
Turkey
Area Comparison
Tehran is 7.5x smaller than Istanbul
Population Comparison
Tehran has 1.7x fewer people than Istanbul
In terms of area, Istanbul is 7.5x the size of Tehran. Istanbul spans 5,461 km² (2,109 mi²) while Tehran covers 730 km² (282 mi²) — a difference of 4,731 km². You could fit Tehran inside Istanbul approximately 7 times.
To put Tehran's size in perspective, its area of 730 km² is roughly the same size as New York City. Meanwhile, Istanbul at 5,461 km² is about 1.2x smaller than Shanghai.
Iran's capital and largest city. Known as "The City of 72 Nations", Tehran covers 730 km² with a population of 9.1 million. The city was established in 1524. Tehran is known for Golestan Palace, Grand Bazaar, Milad Tower, among other attractions. The city's main transit system is the Tehran Metro.
Tehran sits at the foot of Mount Damavand, the highest volcano in Asia at 5,610 meters
Turkey's largest city, spanning Europe and Asia. Also known as "The City on Two Continents", Istanbul has an area of 5,461 km² and is home to 15.5 million people. It was founded around 660 BC. Visitors come for Hagia Sophia, Blue Mosque, Grand Bazaar, and much more. Getting around is easy with the Istanbul Metro.
Istanbul is the only city in the world that spans two continents — Europe and Asia
Looking beyond city limits, the Istanbul metropolitan area covers 5,461 km², which is 2.4x larger than greater Tehran at 2,235 km². The Tehran metro area is also more populous, with 16.0 million people compared to 15.5 million.
Tehran has a population density of 12,507 people per km² — an extremely dense urban environment. Istanbul, with 2,831 people per km², is a moderately dense city. Tehran is dramatically more crowded, with 4.4x the population density.
This comparison spans continents — Tehran in Asia versus Istanbul in Europe. Despite the geographic distance, comparing their sizes reveals surprising insights about how cities grow worldwide.
Tehran has a hot-summer Mediterranean climate while Istanbul experiences oceanic conditions.
Size Ratio
Tehran fits inside Istanbul ~7 times
Density Gap
Tehran is 4.4x more densely populated
History
Istanbul is ~2,184 years older
Want to explore more? Compare city sizes for any two cities worldwide.