Bangkok is about 14 times bigger than Bronx.

Bronx is approximately 109 sq km, while Bangkok is approximately 1,569 sq km, making Bangkok 1,336% larger than Bronx.
Tip: This to-scale comparison of Bronx vs. Bangkok 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.