City size comparison

compared to

London is about 2.1 times smaller than Hanoi.

Hanoi is approximately 3,360 sq km, while London (including the 32 boroughs of greater London) is approximately 1,572 sq km, making London 46.79% the size of Hanoi.
Tip: This to-scale comparison of Hanoi vs. London uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: London vs. Hanoi

Flip Comparison · See true size
See London on top of Hanoi
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Cost of Living Comparison · 7 categories - 2026 data
Hanoi is 74.8% cheaper than London
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