Karachi
3,527 km²
San Francisco
121 km²
Pakistan
USA
Area Comparison
Karachi is 29.1x larger than San Francisco
Population Comparison
Karachi has 17.1x more people than San Francisco
Karachi is significantly larger, covering 29.1 times the area of San Francisco. Karachi spans 3,527 km² (1,362 mi²) while San Francisco covers 121 km² (47 mi²) — a difference of 3,406 km². You could fit San Francisco inside Karachi approximately 29 times.
To put Karachi's size in perspective, its area of 3,527 km² is about 1.1x smaller than Rhode Island. Meanwhile, San Francisco at 121 km² is about 1.2x the size of Paris (city proper).
Karachi's footprint is roughly about 494,000 American football fields, 60 times the area of Manhattan, or 33 times the area of Paris — pick whichever unit feels intuitive. San Francisco, by comparison, equals about 17,000 American football fields, 60 times the area of Monaco, or 35 times the area of Central Park.
Karachi is the capital city of the province of Sindh, Pakistan. It is the largest city in Pakistan and 12th largest in the world, with a population of over 20 million. It is situated at the southern tip of the country along the Arabian Sea coast and formerly served as the country's capital from 1947 to 1959. Ranked as a beta-global city, it is Pakistan's premier industrial and financial centre, with an estimated GDP of over $200 billion (PPP) as of 2021.
Known as "City of Lights", Karachi covers 3,527 km² with a population of 14.9 million. The city was established in 1729. Karachi is known for Port of Karachi, Mazar-e-Quaid mausoleum, Clifton Beach, among other attractions.
Karachi is Pakistan's largest city and the 12th largest in the world, with a population of over 20 million.
San Francisco, officially the City and County of San Francisco, is the fourth-most populous city in California and the 17th-most populous in the United States, with a population of 826,079 in 2025. Among U.S. cities with a population of 300,000 or more, San Francisco is ranked first by per capita income, second by population density, and sixth by aggregate income as of 2023.
Also known as "The City by the Bay", San Francisco has an area of 121 km² and is home to 0.9 million people. The city dates back to 1776. Visitors come for Golden Gate Bridge, Alcatraz Island, Cable cars, and much more. Getting around is easy with the BART & Muni.
San Francisco ranks first by per capita income among all US cities with 300,000+ residents as of 2023.
Karachi has a population density of 4,227 people per km² — a moderately dense city. San Francisco, with 7,190 people per km², is a densely populated city. San Francisco is noticeably denser, packing 1.7 times more people per square kilometer.
Size Ratio
San Francisco fits inside Karachi ~29 times
Density Gap
San Francisco is 1.7x more densely populated
Karachi covers 3,527 km². Cities with a similar urban footprint include Hanoi (3,359 km²), Cairo (3,085 km²), Dubai (4,114 km²), Lima (2,672 km²), or Moscow (2,511 km²).
San Francisco covers 121 km². Cities with a similar urban footprint include Vancouver (115 km²), Paris (105 km²), Miami (143 km²), Barcelona (101 km²), or Lisbon (100 km²).
The straight-line distance from Karachi to San Francisco is 12,981 km (8,066 miles), with an estimated flight time of ~15h 46m.
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