Belgium is about 8 times smaller than United Kingdom.

United Kingdom is approximately 243,610 sq km, while Belgium is approximately 30,528 sq km, making Belgium 12.53% the size of United Kingdom. Meanwhile, the population of United Kingdom is ~65.8 million people (54.0 million fewer people live in Belgium).

This to-scale map shows a size comparison of United Kingdom compared to Belgium. For more details, see an in-depth quality of life comparison of Belgium vs. United Kingdom using our country comparison tool.

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