Helsinki
214 km²
London
1,572 km²
Finland
UK
Area Comparison
Helsinki is 7.3x smaller than London
Population Comparison
Helsinki has 13.0x fewer people than London
In terms of area, London is 7.3x the size of Helsinki. London spans 1,572 km² (607 mi²) while Helsinki covers 214 km² (83 mi²) — a difference of 1,358 km². You could fit Helsinki inside London approximately 7 times.
To put Helsinki's size in perspective, its area of 214 km² is roughly the same size as Amsterdam. Meanwhile, London at 1,572 km² is about 1.4x smaller than Tokyo (city proper).
Helsinki's footprint is roughly about 30,000 American football fields, 110 times the area of Monaco, or 63 times the area of Central Park — pick whichever unit feels intuitive. London, by comparison, equals about 220,000 American football fields, 27 times the area of Manhattan, or 15 times the area of Paris.
Helsinki is the capital and most populous city in Finland. It is on the shore of the Gulf of Finland and is the seat of southern Finland's Uusimaa region. About 694,000 people live in the municipality, with 1.3 million in the capital region and 1.6 million in the metropolitan area. As the most populous urban area in Finland, it is the country's most significant centre for politics, education, finance, culture, and research.
Known as "Daughter of the Baltic", Helsinki covers 214 km² with a population of 0.7 million. The city was established in 1550. Helsinki is known for Helsinki Cathedral, Suomenlinna fortress, Temppeliaukio Church, among other attractions.
Helsinki sits on the shore of the Gulf of Finland and serves as the capital of Finland's Uusimaa region.
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.
Nicknamed "The Big Smoke", London has an area of 1,572 km² and is home to 9.0 million people. The city dates 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.
Helsinki has a population density of 3,224 people per km² — a moderately dense city. London, with 5,712 people per km², is a densely populated city. London is noticeably denser, packing 1.8 times more people per square kilometer.
Helsinki has a warm-summer humid continental climate climate while London experiences oceanic conditions.
Size Ratio
Helsinki fits inside London ~7 times
Density Gap
London is 1.8x more densely populated
History
London is ~1,507 years older
Helsinki covers 214 km². Cities with a similar urban footprint include Amsterdam (219 km²), Osaka (225 km²), Buenos Aires (203 km²), Boston (232 km²), or Kuala Lumpur (243 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 Helsinki to London is 1,821 km (1,131 miles), with an estimated flight time of ~2h 39m.
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