Saint Vincent and the Grenadines is about 194 times bigger than Monaco.

Monaco is approximately 2 sq km, while Saint Vincent and the Grenadines is approximately 389 sq km, making Saint Vincent and the Grenadines 19,350% larger than Monaco. Meanwhile, the population of Monaco is ~31,400 people (69,569 more people live in Saint Vincent and the Grenadines).
Tip: This to-scale comparison of Monaco vs. Saint Vincent and the Grenadines uses the Mercator projection, which distorts the size of regions near the poles.