Miami is about 2.4 times smaller than Chemnitz.

Chemnitz is approximately 221 sq km, while Miami is approximately 92 sq km, making Miami 41.8% the size of Chemnitz.
Tip: This to-scale comparison of Chemnitz vs. Miami 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.