Pasadena is about 1.8 times smaller than Paris.

Paris is approximately 105 sq km, while Pasadena is approximately 59 sq km, making Pasadena 56.42% the size of Paris.
Tip: This to-scale comparison of Paris vs. Pasadena 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.