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Australia
Iran
Area Comparison
Sydney is 16.9x larger than Tehran
Population Comparison
Sydney has 1.7x fewer people than Tehran
Sydney is significantly larger, covering 16.9 times the area of Tehran. Sydney spans 12,368 km² (4,775 mi²) while Tehran covers 730 km² (282 mi²) — a difference of 11,638 km². You could fit Tehran inside Sydney approximately 16 times.
To put Sydney's size in perspective, its area of 12,368 km² is about 2.0x the size of Shanghai. Meanwhile, Tehran at 730 km² is roughly the same size as New York City.
Australia's largest city, known for the Opera House. Known as "The Harbour City", Sydney covers 12,368 km² with a population of 5.3 million. The city was established in 1788. Sydney is known for Sydney Opera House, Harbour Bridge, Bondi Beach, among other attractions. The city's main transit system is the Sydney Trains.
Sydney's administrative area is so large it stretches from the coast to the Blue Mountains foothills
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. The city dates back to 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 Sydney metropolitan area covers 12,368 km², which is 5.5x larger than greater Tehran at 2,235 km². The Tehran metro area is also more populous, with 16.0 million people compared to 5.3 million.
Sydney has a population density of 429 people per km² — a low-density, sprawling urban area. Tehran, with 12,507 people per km², is an extremely dense urban environment. Tehran is dramatically more crowded, with 29.2x the population density.
This comparison spans continents — Sydney in Oceania versus Tehran in Asia. Despite the geographic distance, comparing their sizes reveals surprising insights about how cities grow worldwide.
Sydney has a humid subtropical climate while Tehran experiences hot-summer Mediterranean conditions. When it's noon in Sydney, it's 5.5:00 AM in Tehran — a 6.5-hour time difference.
Size Ratio
Tehran fits inside Sydney ~16 times
Density Gap
Tehran is 29.2x more densely populated
Time Difference
6.5 hours apart
History
Tehran is ~264 years older
The straight-line distance from Sydney to Tehran is 12,911 km (8,023 miles), with an estimated flight time of ~15h 41m. See full distance details, including timezone difference and city facts.
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