Geneva is about 1.4 times smaller than Saint Vincent and the Grenadines.

Saint Vincent and the Grenadines is approximately 389 sq km, while Geneva (including the canton) is approximately 282 sq km, making Geneva 72.49% the size of Saint Vincent and the Grenadines.
Tip: This to-scale comparison of Saint Vincent and the Grenadines vs. Geneva uses the Mercator projection, which distorts the size of regions near the poles.