Chengdu
14,378 km²
London
1,572 km²
People's Republic of China
UK
Area Comparison
Chengdu is 9.1x larger than London
Population Comparison
Chengdu has 2.3x more people than London
Chengdu is significantly larger, covering 9.1 times the area of London. Chengdu spans 14,378 km² (5,551 mi²) while London covers 1,572 km² (607 mi²) — a difference of 12,806 km². You could fit London inside Chengdu approximately 9 times.
To put Chengdu's size in perspective, its area of 14,378 km² is about 2.3x the size of Shanghai. Meanwhile, London at 1,572 km² is about 1.4x smaller than Tokyo (city proper).
Picture Chengdu another way: its area is large enough to fit about 2,000,000 American football fields, 140 times the area of Paris, or 120 times the area of San Francisco. London, by comparison, equals about 220,000 American football fields, 27 times the area of Manhattan, or 15 times the area of Paris.
Chengdu is the capital city of the Chinese province of Sichuan. With a population of 20,937,757 at the 2020 census, it is the fourth most populous city in China, and it is the only city with a population of over 20 million apart from provincial-level municipalities. It is traditionally the hub of Western China.
Known as "Land of Abundance", Chengdu covers 14,378 km² with a population of 20.9 million. The city was founded around 310 BC. Chengdu is known for Giant Panda Breeding Base, Jinli Ancient Street, Wuhou Shrine, among other attractions.
Chengdu has a population of over 20.9 million, making it the fourth most populous city in China.
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.
Often called "The Big Smoke", London has an area of 1,572 km² and is home to 9.0 million people. It was established in 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.
Chengdu has a population density of 1,456 people per km² — a relatively spread-out city. London, with 5,712 people per km², is a densely populated city. London is dramatically more crowded, with 3.9x the population density.
Size Ratio
London fits inside Chengdu ~9 times
Density Gap
London is 3.9x more densely populated
History
Chengdu is ~353 years older
Chengdu covers 14,378 km². Cities with a similar urban footprint include Brisbane (15,826 km²), Beijing (16,411 km²), Sydney (12,368 km²), Hangzhou (16,854 km²), or Xi'an (10,097 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 Chengdu to London is 8,280 km (5,145 miles), with an estimated flight time of ~10h 14m.
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