Long Beach is about 12 times smaller than London.

London (including the 32 boroughs of greater London) is approximately 1,572 sq km, while Long Beach is approximately 131 sq km, making Long Beach 8.35% the size of London.
Tip: This to-scale comparison of London 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.