Rhode Island is about 53 times smaller than Illinois.

Illinois is approximately 143,961 sq km, while Rhode Island is approximately 2,706 sq km, making Rhode Island 1.88% the size of Illinois. Meanwhile, the population of Illinois is ~12.8 million people (11.8 million fewer people live in Rhode Island).
Tip: This to-scale comparison of Illinois vs. Rhode Island uses the Mercator projection, which distorts the size of regions near the poles.
Our free app, MapSize by MyLifeElsewhere — compare any two places, to scale on your mobile device.