Honolulu is about 1.8 times smaller than Salt Lake City.

Salt Lake City is approximately 287 sq km, while Honolulu is approximately 157 sq km, making Honolulu 54.56% the size of Salt Lake City.
Tip: This to-scale comparison of Salt Lake City vs. Honolulu uses the Mercator projection, which distorts the size of regions near the poles.
Our free app, MapSize by MyLifeElsewhere — compare any two places, to scale on your mobile device.