City size comparison

compared to

Buenos Aires is about 19 times smaller than Sydney.

Sydney (the 30 councils of metropolitan Sydney, without the Blue Mountains, Hawkesbury, Wollondilly and the Central Coast) is approximately 3,810 sq km, while Buenos Aires is approximately 203 sq km, making Buenos Aires 5.34% the size of Sydney.
Tip: This to-scale comparison of Sydney vs. Buenos Aires uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Buenos Aires vs. Sydney

Flip Comparison · See true size
See Buenos Aires on top of Sydney
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Cost of Living Comparison · 7 categories - 2026 data
Sydney is 85.4% more expensive than Buenos Aires
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