Size comparison

compared to

O'Hare Airport is about 22 times smaller than Chicago.

Chicago is approximately 590 sq km, while O'Hare Airport is approximately 27 km² (11 sq mi), making O'Hare Airport 4.64% the size of Chicago.
Tip: This to-scale comparison of Chicago vs. O'Hare Airport uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: O'Hare Airport vs. Chicago

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See O'Hare Airport on top of Chicago
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