City size comparison

compared to

Hanoi is about 2.1 times bigger than London.

London (including the 32 boroughs of greater London) is approximately 1,572 sq km, while Hanoi is approximately 3,360 sq km, making Hanoi 114% larger than London.
Tip: This to-scale comparison of London vs. Hanoi uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Hanoi vs. London

Flip Comparison · See true size
See Hanoi on top of London
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Cost of Living Comparison · 7 categories - 2026 data
London is 4.0 times more expensive than Hanoi
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