Saint Vincent and the Grenadines is about 14 times bigger than Macau.

Macau is approximately 28 sq km, while Saint Vincent and the Grenadines is approximately 389 sq km, making Saint Vincent and the Grenadines 1,279% larger than Macau. Meanwhile, the population of Macau is ~635,293 people (534,324 fewer people live in Saint Vincent and the Grenadines).
Tip: This to-scale comparison of Macau vs. Saint Vincent and the Grenadines uses the Mercator projection, which distorts the size of regions near the poles.