Belgium is about 11 times bigger than Rhode Island.

Rhode Island is approximately 2,706 sq km, while Belgium is approximately 30,528 sq km, making Belgium 1,028% larger than Rhode Island. Meanwhile, the population of Rhode Island is ~1.1 million people (10.8 million more people live in Belgium).
Tip: This to-scale comparison of Rhode Island vs. Belgium uses the Mercator projection, which distorts the size of regions near the poles.