Paris is about 9 times smaller than Sao Tome and Principe.

Sao Tome and Principe is approximately 964 sq km, while Paris is approximately 105 sq km, making Paris 10.93% the size of Sao Tome and Principe.
Tip: This to-scale comparison of Sao Tome and Principe vs. Paris uses the Mercator projection, which distorts the size of regions near the poles.