British Indian Ocean Territory is about 2,009 times smaller than North Korea.

North Korea is approximately 120,538 sq km, while British Indian Ocean Territory is approximately 60 sq km, making British Indian Ocean Territory 0.05% the size of North Korea.
Tip: This to-scale comparison of North 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. North Korea

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