Berlin is about 8 times bigger than Bronx.

Bronx is approximately 109 sq km, while Berlin is approximately 891 sq km, making Berlin 716% larger than Bronx.
Tip: This to-scale comparison of Bronx vs. Berlin 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.