Rome is about 8 times bigger than Honolulu.

Honolulu is approximately 157 sq km, while Rome is approximately 1,287 sq km, making Rome 722% larger than Honolulu.
Tip: This to-scale comparison of Honolulu vs. Rome 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.