British Indian Ocean Territory is about 1.7 times bigger than Norfolk Island.

Norfolk Island is approximately 36 sq km, while British Indian Ocean Territory is approximately 60 sq km, making British Indian Ocean Territory 67% larger than Norfolk Island. Meanwhile, the population of Norfolk Island is ~1,739 people (1,261 more people live in British Indian Ocean Territory).
Tip: This to-scale comparison of Norfolk Island 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. Norfolk Island

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