Spain is about 8,423 times bigger than British Indian Ocean Territory.

British Indian Ocean Territory is approximately 60 sq km, while Spain is approximately 505,370 sq km, making Spain 842,183% larger than British Indian Ocean Territory. Meanwhile, the population of British Indian Ocean Territory is ~3,000 people (49.4 million more people live in Spain).
Tip: This to-scale comparison of British Indian Ocean Territory vs. Spain uses the Mercator projection, which distorts the size of regions near the poles.
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