Honolulu is about 6 times smaller than Sao Tome and Principe.

Sao Tome and Principe is approximately 964 sq km, while Honolulu is approximately 157 sq km, making Honolulu 16.26% the size of Sao Tome and Principe.
Tip: This to-scale comparison of Sao Tome and Principe vs. Honolulu uses the Mercator projection, which distorts the size of regions near the poles.