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

Spain is approximately 505,370 sq km, while British Indian Ocean Territory is approximately 60 sq km, making British Indian Ocean Territory 0.01% the size of Spain. Meanwhile, the population of Spain is ~49.4 million people (49.4 million fewer people live in British Indian Ocean Territory).
Tip: This to-scale comparison of Spain vs. British Indian Ocean Territory uses the Mercator projection, which distorts the size of regions near the poles.
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