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China
Iran
Area Comparison
Shenzhen is 2.7x larger than Tehran
Population Comparison
Shenzhen has 1.9x more people than Tehran
In terms of area, Shenzhen is 2.7x the size of Tehran. Shenzhen spans 1,997 km² (771 mi²) while Tehran covers 730 km² (282 mi²) — a difference of 1,267 km². You could fit Tehran inside Shenzhen approximately 2 times.
To put Shenzhen's size in perspective, its area of 1,997 km² is roughly the same size as Tokyo (city proper). Meanwhile, Tehran at 730 km² is roughly the same size as New York City.
China's tech capital and a major innovation hub. Known as "China's Silicon Valley", Shenzhen covers 1,997 km² with a population of 17.6 million. The city was established in 1979. Shenzhen is known for Tech industry (Huawei, Tencent, DJI), Shenzhen Bay, Window of the World theme park, among other attractions. The city's main transit system is the Shenzhen Metro.
Shenzhen grew from a fishing village of 30,000 people to a megacity of 17 million in just 40 years
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 1.1x larger than greater Shenzhen at 1,997 km². The Shenzhen metro area is also more populous, with 17.6 million people compared to 16.0 million.
Shenzhen has a population density of 8,793 people per km² — a densely populated city. Tehran, with 12,507 people per km², is an extremely dense urban environment. Both cities have comparable density, though Tehran is slightly more compact.
Both cities are in Asia, but they represent different national approaches to urban development. Shenzhen (China) and Tehran (Iran) offer a fascinating regional contrast.
Shenzhen has a humid subtropical climate while Tehran experiences hot-summer Mediterranean conditions. When it's noon in Shenzhen, it's 7.5:00 AM in Tehran — a 4.5-hour time difference.
Size Ratio
Tehran fits inside Shenzhen ~2 times
Density Gap
Tehran is 1.4x more densely populated
Time Difference
4.5 hours apart
History
Tehran is ~455 years older
The straight-line distance from Shenzhen to Tehran is 6,158 km (3,827 miles), with an estimated flight time of ~7h 45m. See full distance details, including timezone difference and city facts.
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