Hanoi
3,359 km²
Lisbon
100 km²
Vietnam
Portugal
Area Comparison
Hanoi is 33.6x larger than Lisbon
Population Comparison
Hanoi has 14.6x more people than Lisbon
Yes — Hanoi is 33.6x larger than Lisbon by area. Hanoi spans 3,359 km² (1,297 mi²) while Lisbon covers 100 km² (39 mi²) — a difference of 3,259 km². You could fit Lisbon inside Hanoi approximately 33 times.
To put Hanoi's size in perspective, its area of 3,359 km² is about 1.2x smaller than Rhode Island. Meanwhile, Lisbon at 100 km² is roughly the same size as Paris (city proper).
Picture Hanoi another way: its area is large enough to fit about 470,000 American football fields, 57 times the area of Manhattan, or 32 times the area of Paris. Lisbon works out to about 14,000 American football fields, 50 times the area of Monaco, or 29 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.
Lisbon is the capital and most populous city of Portugal, with an estimated population of 575,739 as of 2024, within its administrative limits and 3,028,000 within the metropolis, as of 2025. Lisbon is mainland Europe's westernmost capital city, and the only one along the Atlantic coast, the others being on islands. The city lies in the western portion of the Iberian Peninsula, on the northern shore of the River Tagus.
Often called "City of Seven Hills", Lisbon has an area of 100 km² and is home to 0.6 million people. Its history stretches back to 1200 BC. Visitors come for Belém Tower, Jerónimos Monastery, Tram 28, and much more. Getting around is easy with the Lisbon Metro.
Lisbon is mainland Europe's westernmost capital city and the only European capital along the Atlantic coast.
Looking beyond city limits, the Hanoi metropolitan area covers 3,359 km², which is 1.1x larger than greater Lisbon at 3,015 km². The Hanoi metro area is also more populous, with 8.1 million people compared to 2.9 million.
Hanoi has a population density of 2,397 people per km² — a moderately dense city. Lisbon, with 5,500 people per km², is a densely populated city. Lisbon is noticeably denser, packing 2.3 times more people per square kilometer.
This comparison spans continents — Hanoi in Asia versus Lisbon in Europe. Despite the geographic distance, comparing their sizes reveals surprising insights about how cities grow worldwide.
Hanoi has a humid subtropical climate while Lisbon experiences Mediterranean conditions. When it's noon in Hanoi, it's 5:00 AM in Lisbon — a 7-hour time difference.
Size Ratio
Lisbon fits inside Hanoi ~33 times
Density Gap
Lisbon is 2.3x more densely populated
Time Difference
7 hours apart
History
Lisbon is ~2,210 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).
Lisbon covers 100 km². Cities with a similar urban footprint include Barcelona (101 km²), Paris (105 km²), Copenhagen (91 km²), Zurich (88 km²), or Vancouver (115 km²).
The straight-line distance from Hanoi to Lisbon is 10,537 km (6,547 miles), with an estimated flight time of ~12h 54m.
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