Karachi
3,527 km²
London
1,572 km²
Pakistan
UK
Area Comparison
Karachi is 2.2x larger than London
Population Comparison
Karachi has 1.7x more people than London
In terms of area, Karachi is 2.2x the size of London. Karachi spans 3,527 km² (1,362 mi²) while London covers 1,572 km² (607 mi²) — a difference of 1,955 km². You could fit London inside Karachi approximately 2 times.
To put Karachi's size in perspective, its area of 3,527 km² is about 1.1x smaller than Rhode Island. Meanwhile, London at 1,572 km² is about 1.4x smaller than Tokyo (city proper).
Picture Karachi another way: its area is large enough to fit about 494,000 American football fields, 60 times the area of Manhattan, or 33 times the area of Paris. For London, that's about 220,000 American football fields, 27 times the area of Manhattan, or 15 times the area of Paris.
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.
London is the capital and largest city of England and the United Kingdom, with a population of 9.1 million people in 2024. Its wider metropolitan area is the largest in Western Europe, with a population of 15.1 million. London stands on the River Thames in southeast England, at the head of a 50-mile (80 km) tidal estuary down to the North Sea, and has been a major settlement for nearly 2,000 years.
Also known as "The Big Smoke", London has an area of 1,572 km² and is home to 9.0 million people. Its history stretches back to 43. Visitors come for Big Ben, Tower Bridge, Buckingham Palace, and much more. Getting around is easy with the London Underground.
London has been a major settlement for nearly 2,000 years, tracing its roots back to Roman times around 47 AD.
Karachi has a population density of 4,227 people per km² — a moderately dense city. London, with 5,712 people per km², is a densely populated city. Both cities have comparable density, though London is slightly more compact.
Size Ratio
London fits inside Karachi ~2 times
Density Gap
London is 1.4x more densely populated
History
London is ~1,686 years older
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).
London covers 1,572 km². Cities with a similar urban footprint include Bangkok (1,569 km²), Bogotá (1,578 km²), São Paulo (1,521 km²), Johannesburg (1,644 km²), or Mexico City (1,485 km²).
The straight-line distance from Karachi to London is 6,309 km (3,920 miles), with an estimated flight time of ~7h 55m.
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