Long Beach is about 10 times smaller than Rome.

Rome is approximately 1,287 sq km, while Long Beach is approximately 131 sq km, making Long Beach 10.19% the size of Rome.
Tip: This to-scale comparison of Rome vs. Long Beach 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.