Hanoi
3,359 km²
Helsinki
214 km²
Vietnam
Finland
Area Comparison
Hanoi is 15.7x larger than Helsinki
Population Comparison
Hanoi has 11.7x more people than Helsinki
Hanoi is significantly larger, covering 15.7 times the area of Helsinki. Hanoi spans 3,359 km² (1,297 mi²) while Helsinki covers 214 km² (83 mi²) — a difference of 3,145 km². You could fit Helsinki inside Hanoi approximately 15 times.
To put Hanoi's size in perspective, its area of 3,359 km² is about 1.2x smaller than Rhode Island. Meanwhile, Helsinki at 214 km² is roughly the same size as Amsterdam.
Hanoi's footprint is roughly about 470,000 American football fields, 57 times the area of Manhattan, or 32 times the area of Paris — pick whichever unit feels intuitive. Helsinki, by comparison, equals about 30,000 American football fields, 110 times the area of Monaco, or 63 times the area of Central Park.
Hanoi is the capital and second-most populous municipality of Vietnam. It encompasses an area of 3,358.6 km2 (1,296.8 mi2), and as of 2025 has a population of 8,807,523. Hanoi had the second-highest gross regional domestic product of all Vietnamese provinces and municipalities at US$48 billion in 2023, behind Ho Chi Minh City. It hosts 78 foreign embassies, the headquarters of the Vietnam People's Army (VPA), its Vietnam National University system, and other governmental organizations.
Known as "City Between Rivers", Hanoi covers 3,359 km² with a population of 8.1 million. The city was established in 1010. Hanoi is known for Hoan Kiem Lake, Old Quarter, Temple of Literature, among other attractions. The city's main transit system is the Hanoi Metro.
Hanoi encompasses 3,358.6 square kilometers and had a population of nearly 8.8 million as of 2025.
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.
Often called "Daughter of the Baltic", Helsinki has an area of 214 km² and is home to 0.7 million people. It was established in 1550. Visitors come for Helsinki Cathedral, Suomenlinna fortress, Temppeliaukio Church, and much more.
Helsinki sits on the shore of the Gulf of Finland and serves as the capital of Finland's Uusimaa region.
Hanoi has a population density of 2,397 people per km² — a moderately dense city. Helsinki, with 3,224 people per km², is a moderately dense city. Both cities have comparable density, though Helsinki is slightly more compact.
Hanoi has a humid subtropical climate while Helsinki experiences warm-summer humid continental climate conditions.
Size Ratio
Helsinki fits inside Hanoi ~15 times
Density Gap
Helsinki is 1.3x more densely populated
History
Hanoi is ~540 years older
Hanoi covers 3,359 km². Cities with a similar urban footprint include Karachi (3,527 km²), Cairo (3,085 km²), Dubai (4,114 km²), Lima (2,672 km²), or Moscow (2,511 km²).
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).
The straight-line distance from Hanoi to Helsinki is 7,491 km (4,655 miles), with an estimated flight time of ~9h 19m.
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