Loading map...
Loading map...
Vietnam
Kenya
Area Comparison
Hanoi is 4.8x larger than Nairobi
Population Comparison
Hanoi has 1.7x more people than Nairobi
In terms of area, Hanoi is 4.8x the size of Nairobi. Hanoi spans 3,359 km² (1,297 mi²) while Nairobi covers 696 km² (269 mi²) — a difference of 2,663 km². You could fit Nairobi inside Hanoi approximately 4 times.
To put Hanoi's size in perspective, its area of 3,359 km² is about 1.2x smaller than Rhode Island. Meanwhile, Nairobi at 696 km² is about 1.1x smaller than New York City.
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
Kenya's capital and East Africa's largest city. Nicknamed "The Green City in the Sun", Nairobi has an area of 696 km² and is home to 4.7 million people. Its history stretches back to 1899. Visitors come for Nairobi National Park, Safari tourism, Karen Blixen Museum, and much more. Getting around is easy with the Nairobi Commuter Rail.
Nairobi is the only capital city in the world with a national park within its borders — you can see lions with skyscrapers in the background
Looking beyond city limits, the Hanoi metropolitan area covers 3,359 km², which is 4.8x larger than greater Nairobi at 696 km². The Hanoi metro area is also more populous, with 8.1 million people compared to 4.7 million.
Hanoi has a population density of 2,397 people per km² — a moderately dense city. Nairobi, with 6,796 people per km², is a densely populated city. Nairobi is noticeably denser, packing 2.8 times more people per square kilometer.
This comparison spans continents — Hanoi in Asia versus Nairobi in Africa. Despite the geographic distance, comparing their sizes reveals surprising insights about how cities grow worldwide.
Hanoi has a humid subtropical climate while Nairobi experiences subtropical highland conditions. Summers are notably different: Hanoi averages 30°C compared to 20°C in Nairobi. When it's noon in Hanoi, it's 8:00 AM in Nairobi — a 4-hour time difference.
Size Ratio
Nairobi fits inside Hanoi ~4 times
Density Gap
Nairobi is 2.8x more densely populated
Time Difference
4 hours apart
History
Hanoi is ~889 years older
The straight-line distance from Hanoi to Nairobi is 7,891 km (4,903 miles), with an estimated flight time of ~9h 47m. See full distance details, including timezone difference and city facts.
Want to explore more? Compare city sizes for any two cities worldwide, or share your location live with friends.