Saint Vincent and the Grenadines is about 2.1 times smaller than Canberra.

Canberra is approximately 814 sq km, while Saint Vincent and the Grenadines is approximately 389 sq km, making Saint Vincent and the Grenadines 47.78% the size of Canberra.
Tip: This to-scale comparison of Canberra vs. Saint Vincent and the Grenadines uses the Mercator projection, which distorts the size of regions near the poles.