City size comparison

compared to

Seoul is about 6 times smaller than Hanoi.

Hanoi is approximately 3,360 sq km, while Seoul is approximately 605 sq km, making Seoul 18.01% the size of Hanoi.
Tip: This to-scale comparison of Hanoi vs. Seoul uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Seoul vs. Hanoi

Flip Comparison · See true size
See Seoul on top of Hanoi
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Cost of Living Comparison · 7 categories - 2026 data
Hanoi is 54.1% cheaper than Seoul
→
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