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USA
Iran
Area Comparison
San Francisco is 6.0x smaller than Tehran
Population Comparison
San Francisco has 10.5x fewer people than Tehran
Yes — Tehran is 6.0x larger than San Francisco by area. Tehran spans 730 km² (282 mi²) while San Francisco covers 121 km² (47 mi²) — a difference of 609 km². You could fit San Francisco inside Tehran approximately 6 times.
To put San Francisco's size in perspective, its area of 121 km² is about 1.2x the size of Paris (city proper). Meanwhile, Tehran at 730 km² is roughly the same size as New York City.
A cultural and financial center in Northern California. Known as "SF", San Francisco covers 121 km² with a population of 0.9 million. The city was established in 1776. San Francisco is known for Golden Gate Bridge, Alcatraz Island, Cable cars, among other attractions. The city's main transit system is the BART & Muni.
San Francisco's 121 km² makes it one of the smallest major US cities by area
Iran's capital and largest city. Nicknamed "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 San Francisco metropolitan area covers 6,984 km², which is 3.1x larger than greater Tehran at 2,235 km². The Tehran metro area is also more populous, with 16.0 million people compared to 4.7 million.
San Francisco has a population density of 7,190 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 1.7 times more people per square kilometer.
This comparison spans continents — San Francisco in North America versus Tehran in Asia. Despite the geographic distance, comparing their sizes reveals surprising insights about how cities grow worldwide.
San Francisco has a Mediterranean climate while Tehran experiences hot-summer Mediterranean conditions. Summers are notably different: Tehran averages 30°C compared to 17°C in San Francisco. When it's noon in Tehran, it's 0.5:00 AM in San Francisco — a 11.5-hour time difference.
Size Ratio
San Francisco fits inside Tehran ~6 times
Density Gap
Tehran is 1.7x more densely populated
Time Difference
11.5 hours apart
History
Tehran is ~252 years older
The straight-line distance from San Francisco to Tehran is 11,821 km (7,345 miles), with an estimated flight time of ~14h 24m. See full distance details, including timezone difference and city facts.
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