Chicago is 6.3 times larger than Lansing, Michigan.
Area: 608 km2 calculated
Chicago is the third most populous city in the United States, after New York City and Los Angeles. With 2.7 million residents, it is the most populous city in both the U.S. state of Illinois and the American Midwest. Wikipedia
Area: 96 km2 calculated
Lansing is the capital city of the U.S. state of Michigan, and the state's sixth largest city. It is located mostly in Ingham County, though a small portion of the city extends into Eaton County. Wikipedia