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Japan
Iran
Area Comparison
Osaka is 3.2x smaller than Tehran
Population Comparison
Osaka has 3.3x fewer people than Tehran
In terms of area, Tehran is 3.2x the size of Osaka. Tehran spans 730 km² (282 mi²) while Osaka covers 225 km² (87 mi²) — a difference of 505 km². You could fit Osaka inside Tehran approximately 3 times.
To put Osaka's size in perspective, its area of 225 km² is roughly the same size as Amsterdam. Meanwhile, Tehran at 730 km² is roughly the same size as New York City.
Japan's third-largest city and a culinary capital. Known as "The Kitchen of Japan", Osaka covers 225 km² with a population of 2.8 million. The city was established in 645. Osaka is known for Osaka Castle, Dotonbori district, Street food culture, among other attractions. The city's main transit system is the Osaka Metro.
Osaka residents spend more on food per capita than any other city in Japan
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 Osaka metropolitan area covers 13,228 km², which is 5.9x larger than greater Tehran at 2,235 km². The Osaka metro area is also more populous, with 19.3 million people compared to 16.0 million.
Osaka has a population density of 12,222 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 Tehran is slightly more compact.
Both cities are in Asia, but they represent different national approaches to urban development. Osaka (Japan) and Tehran (Iran) offer a fascinating regional contrast.
Osaka has a humid subtropical climate while Tehran experiences hot-summer Mediterranean conditions. When it's noon in Osaka, it's 6.5:00 AM in Tehran — a 5.5-hour time difference.
Size Ratio
Osaka fits inside Tehran ~3 times
Time Difference
5.5 hours apart
History
Osaka is ~879 years older
The straight-line distance from Osaka to Tehran is 7,382 km (4,587 miles), with an estimated flight time of ~9h 11m. See full distance details, including timezone difference and city facts.
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