City size comparison

compared to

Rio De Janeiro is about 6 times bigger than Oakland.

Oakland is approximately 202 sq km, while Rio De Janeiro is approximately 1,221 sq km, making Rio De Janeiro 504% larger than Oakland.
Tip: This to-scale comparison of Oakland 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. Oakland
Flip Comparison · See true size
See Rio De Janeiro on top of Oakland
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Cost of Living Comparison · 7 categories - 2026 data
Oakland is 2.9 times more expensive than Rio De Janeiro
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