Hanoi
3,359 km²
Madrid
604 km²
Vietnam
Spain
Area Comparison
Hanoi is 5.6x larger than Madrid
Population Comparison
Hanoi has 2.4x more people than Madrid
Hanoi is significantly larger, covering 5.6 times the area of Madrid. Hanoi spans 3,359 km² (1,297 mi²) while Madrid covers 604 km² (233 mi²) — a difference of 2,755 km². You could fit Madrid inside Hanoi approximately 5 times.
To put Hanoi's size in perspective, its area of 3,359 km² is about 1.2x smaller than Rhode Island. Meanwhile, Madrid at 604 km² is roughly the same size as Seoul.
In more relatable units, Hanoi's 3,359 km² is about 470,000 American football fields, 57 times the area of Manhattan, or 32 times the area of Paris. Madrid, by comparison, equals about 85,000 American football fields, 180 times the area of Central Park, or 10 times the area of Manhattan.
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.
Madrid is the capital and most populous city of Spain. It had a population of over 3.4 million in the city proper in 2025, and a metropolitan area population of approximately 6.8 million. Madrid is the second-largest city in the European Union (EU), after Berlin, and its metropolitan area is the second-largest in the EU, after Paris. The municipality covers an area of 605.77 square kilometres (233.89 sq mi).
Also known as "La Villa y Corte", Madrid has an area of 604 km² and is home to 3.3 million people. It was established in 852. Visitors come for Royal Palace of Madrid, Prado Museum, Plaza Mayor, and much more. Getting around is easy with the Madrid Metro.
Madrid is the second-largest city in the European Union after Berlin, with over 3.4 million residents in the city proper
Looking beyond city limits, the Madrid metropolitan area covers 8,028 km², which is 2.4x larger than greater Hanoi at 3,359 km². The Hanoi metro area is also more populous, with 8.1 million people compared to 6.8 million.
Hanoi has a population density of 2,397 people per km² — a moderately dense city. Madrid, with 5,513 people per km², is a densely populated city. Madrid is noticeably denser, packing 2.3 times more people per square kilometer.
This comparison spans continents — Hanoi in Asia versus Madrid in Europe. Despite the geographic distance, comparing their sizes reveals surprising insights about how cities grow worldwide.
Hanoi has a humid subtropical climate while Madrid experiences hot-summer Mediterranean conditions. When it's noon in Hanoi, it's 6:00 AM in Madrid — a 6-hour time difference.
Size Ratio
Madrid fits inside Hanoi ~5 times
Density Gap
Madrid is 2.3x more densely populated
Time Difference
6 hours apart
History
Madrid is ~158 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).
Madrid covers 604 km². Cities with a similar urban footprint include Seoul (605 km²), Mumbai (603 km²), Chicago (606 km²), Toronto (630 km²), or Hyderabad (650 km²).
The straight-line distance from Hanoi to Madrid is 10,040 km (6,238 miles), with an estimated flight time of ~12h 19m.
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