Antigua and Barbuda is about 1.7 times bigger than Niue.

Niue is approximately 260 sq km, while Antigua and Barbuda is approximately 443 sq km, making Antigua and Barbuda 70% larger than Niue. Meanwhile, the population of Niue is ~1,933 people (92,276 more people live in Antigua and Barbuda).
Tip: This to-scale comparison of Niue vs. Antigua and Barbuda uses the Mercator projection, which distorts the size of regions near the poles.
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