Bangkok is about 26 times bigger than Pasadena.

Pasadena is approximately 59 sq km, while Bangkok is approximately 1,569 sq km, making Bangkok 2,538% larger than Pasadena.
Tip: This to-scale comparison of Pasadena 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.