O'Hare Airport is about 359,083 times smaller than United States.

United States is approximately 9,833,517 sq km, while O'Hare Airport is approximately 27 km² (11 sq mi), making O'Hare Airport 0.0% the size of United States.
Tip: This to-scale comparison of United States vs. O'Hare Airport uses the Mercator projection, which distorts the size of regions near the poles.
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