Guinea-Bissau is about 88 times bigger than Heard Island and McDonald Islands.

Heard Island and McDonald Islands is approximately 412 sq km, while Guinea-Bissau is approximately 36,125 sq km, making Guinea-Bissau 8,668% larger than Heard Island and McDonald Islands.
Tip: This to-scale comparison of Heard Island and McDonald Islands vs. Guinea-Bissau uses the Mercator projection, which distorts the size of regions near the poles.

Compare further: Guinea-Bissau vs. Heard Island and McDonald Islands

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