Heard Island and McDonald Islands is about 2.9 times bigger than Wallis and Futuna.

Wallis and Futuna is approximately 142 sq km, while Heard Island and McDonald Islands is approximately 412 sq km, making Heard Island and McDonald Islands 190% larger than Wallis and Futuna.
Tip: This to-scale comparison of Wallis and Futuna vs. Heard Island and McDonald Islands uses the Mercator projection, which distorts the size of regions near the poles.

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