City size comparison

compared to

Oslo is about 1.3 times smaller than Chicago.

Chicago is approximately 590 sq km, while Oslo is approximately 454 sq km, making Oslo 76.99% the size of Chicago.
Tip: This to-scale comparison of Chicago vs. Oslo uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Oslo vs. Chicago

Flip Comparison · See true size
See Oslo on top of Chicago
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Cost of Living Comparison · 7 categories - 2026 data
Chicago is 53.3% more expensive than Oslo
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