City size comparison

compared to

Rio De Janeiro is about 6 times bigger than Buenos Aires.

Buenos Aires is approximately 203 sq km, while Rio De Janeiro is approximately 1,221 sq km, making Rio De Janeiro 501% larger than Buenos Aires.
Tip: This to-scale comparison of Buenos Aires vs. Rio De Janeiro uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Rio De Janeiro vs. Buenos Aires

Flip Comparison · See true size
See Rio De Janeiro on top of Buenos Aires
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Cost of Living Comparison · 7 categories - 2026 data
Buenos Aires is 15.2% more expensive than Rio De Janeiro
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