Egypt is about 16,691 times bigger than British Indian Ocean Territory.

British Indian Ocean Territory is approximately 60 sq km, while Egypt is approximately 1,001,450 sq km, making Egypt 1,668,983% larger than British Indian Ocean Territory. Meanwhile, the population of British Indian Ocean Territory is ~3,000 people (118.4 million more people live in Egypt).
Tip: This to-scale comparison of British Indian Ocean Territory vs. Egypt uses the Mercator projection, which distorts the size of regions near the poles.
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