Loading map...
Loading map...
UK
Iran
Area Comparison
London is 2.2x larger than Tehran
Population Comparison
London has 1.0x fewer people than Tehran
In terms of area, London is 2.2x the size of Tehran. London spans 1,572 km² (607 mi²) while Tehran covers 730 km² (282 mi²) — a difference of 842 km². You could fit Tehran inside London approximately 2 times.
To put London's size in perspective, its area of 1,572 km² is about 1.4x smaller than Tokyo (city proper). Meanwhile, Tehran at 730 km² is roughly the same size as New York City.
Capital of England and the United Kingdom. Known as "The Big Smoke", London covers 1,572 km² with a population of 9.0 million. The city was established in 43. London is known for Big Ben, Tower of London, Buckingham Palace, among other attractions. The city's main transit system is the London Underground.
London was the first city to have an underground railway, opening in 1863
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. Its history stretches 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 London metropolitan area covers 8,382 km², which is 3.8x larger than greater Tehran at 2,235 km². The Tehran metro area is also more populous, with 16.0 million people compared to 14.3 million.
London has a population density of 5,712 people per km² — a densely populated city. Tehran, with 12,507 people per km², is an extremely dense urban environment. Tehran is noticeably denser, packing 2.2 times more people per square kilometer.
This comparison spans continents — London in Europe versus Tehran in Asia. Despite the geographic distance, comparing their sizes reveals surprising insights about how cities grow worldwide.
London has a oceanic climate while Tehran experiences hot-summer Mediterranean conditions. Summers are notably different: Tehran averages 30°C compared to 19°C in London. When it's noon in Tehran, it's 8.5:00 AM in London — a 3.5-hour time difference.
Size Ratio
Tehran fits inside London ~2 times
Density Gap
Tehran is 2.2x more densely populated
Time Difference
3.5 hours apart
History
London is ~1,481 years older
The straight-line distance from London to Tehran is 4,397 km (2,732 miles), with an estimated flight time of ~5h 40m. See full distance details, including timezone difference and city facts.
Want to explore more? Compare city sizes for any two cities worldwide, or share your location live with friends.