British Indian Ocean Territory is about 4 times smaller than Saint Pierre and Miquelon.

Saint Pierre and Miquelon is approximately 242 sq km, while British Indian Ocean Territory is approximately 60 sq km, making British Indian Ocean Territory 24.79% the size of Saint Pierre and Miquelon.
Tip: This to-scale comparison of Saint Pierre and Miquelon vs. British Indian Ocean Territory uses the Mercator projection, which distorts the size of regions near the poles.

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