New York is about 3.4 times bigger than Guinea-Bissau.

Guinea-Bissau is approximately 36,125 sq km, while New York is approximately 122,283 sq km, making New York 238% larger than Guinea-Bissau. Meanwhile, the population of Guinea-Bissau is ~2.0 million people (17.4 million more people live in New York).
Tip: This to-scale comparison of Guinea-Bissau vs. New York uses the Mercator projection, which distorts the size of regions near the poles.