City size comparison

compared to

Sydney is around the same size as Hanoi.

Hanoi is approximately 3,360 sq km, while Sydney (the 30 councils of metropolitan Sydney, without the Blue Mountains, Hawkesbury, Wollondilly and the Central Coast) is approximately 3,810 sq km, making Sydney 13% larger than Hanoi.
Tip: This to-scale comparison of Hanoi vs. Sydney uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Sydney vs. Hanoi

Flip Comparison · See true size
See Sydney on top of Hanoi
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Cost of Living Comparison · 7 categories - 2026 data
Hanoi is 71.5% cheaper than Sydney
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