Guinea-Bissau is about 21 times smaller than Zambia.

Zambia is approximately 752,618 sq km, while Guinea-Bissau is approximately 36,125 sq km, making Guinea-Bissau 4.8% the size of Zambia. Meanwhile, the population of Zambia is ~19.6 million people (17.6 million fewer people live in Guinea-Bissau).
This to-scale comparison of Zambia vs. Guinea-Bissau uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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