British Indian Ocean Territory is about 1,662 times smaller than South Korea.

South Korea is approximately 99,720 sq km, while British Indian Ocean Territory is approximately 60 sq km, making British Indian Ocean Territory 0.06% the size of South Korea. Meanwhile, the population of South Korea is ~51.7 million people (51.7 million fewer people live in British Indian Ocean Territory).
Tip: This to-scale comparison of South Korea vs. British Indian Ocean Territory uses the Mercator projection, which distorts the size of regions near the poles.

Compare further: British Indian Ocean Territory vs. South Korea

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