Belgium is about 4.7 times smaller than Iowa.

Iowa is approximately 144,701 sq km, while Belgium is approximately 30,528 sq km, making Belgium 21.1% the size of Iowa. Meanwhile, the population of Iowa is ~3.0 million people (8.8 million more people live in Belgium).
This to-scale comparison of Iowa vs. Belgium uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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