Massachusetts is about 12 times smaller than United Kingdom.

United Kingdom is approximately 243,610 sq km, while Massachusetts is approximately 20,306 sq km, making Massachusetts 8.34% the size of United Kingdom. Meanwhile, the population of United Kingdom is ~67.8 million people (61.2 million fewer people live in Massachusetts).
This to-scale comparison of United Kingdom vs. Massachusetts uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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