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Vietnam
Nigeria
Area Comparison
Hanoi is 2.9x larger than Lagos
Population Comparison
Hanoi has 1.9x fewer people than Lagos
Hanoi is significantly larger, covering 2.9 times the area of Lagos. Hanoi spans 3,359 km² (1,297 mi²) while Lagos covers 1,172 km² (453 mi²) — a difference of 2,187 km². You could fit Lagos inside Hanoi approximately 2 times.
To put Hanoi's size in perspective, its area of 3,359 km² is about 1.2x smaller than Rhode Island. Meanwhile, Lagos at 1,172 km² is about 1.3x the size of Berlin.
Vietnam's capital with over a thousand years of history. Known as "The City of the Ascending Dragon", Hanoi covers 3,359 km² with a population of 8.1 million. The city was established in 1010. Hanoi is known for Hoàn Kiếm Lake, Old Quarter (36 Streets), Ho Chi Minh Mausoleum, among other attractions. The city's main transit system is the Hanoi Metro.
Hanoi's Old Quarter has been a trading hub for nearly 1,000 years, with each street historically dedicated to a specific trade
Nigeria's largest city and economic hub of West Africa. Nicknamed "Eko", Lagos has an area of 1,172 km² and is home to 15.4 million people. The city dates back to 1472. Visitors come for Afrobeats music scene, Lekki Conservation Centre, Lagos Island, and much more. Getting around is easy with the Lagos Rail (Blue & Red Lines).
Lagos is projected to become the world's largest city by population by 2100
Looking beyond city limits, the Hanoi metropolitan area covers 3,359 km², which is 1.2x larger than greater Lagos at 2,706 km². The Lagos metro area is also more populous, with 21.0 million people compared to 8.1 million.
Hanoi has a population density of 2,397 people per km² — a moderately dense city. Lagos, with 13,131 people per km², is an extremely dense urban environment. Lagos is dramatically more crowded, with 5.5x the population density.
This comparison spans continents — Hanoi in Asia versus Lagos in Africa. Despite the geographic distance, comparing their sizes reveals surprising insights about how cities grow worldwide.
Hanoi has a humid subtropical climate while Lagos experiences tropical savanna conditions. When it's noon in Hanoi, it's 6:00 AM in Lagos — a 6-hour time difference.
Size Ratio
Lagos fits inside Hanoi ~2 times
Density Gap
Lagos is 5.5x more densely populated
Time Difference
6 hours apart
History
Hanoi is ~462 years older
The straight-line distance from Hanoi to Lagos is 11,026 km (6,851 miles), with an estimated flight time of ~13h 28m. See full distance details, including timezone difference and city facts.
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