Paris is about 2.1 times smaller than Dusseldorf.

Dusseldorf is approximately 217 sq km, while Paris is approximately 105 sq km, making Paris 48.48% the size of Dusseldorf.
Tip: This to-scale comparison of Dusseldorf vs. Paris 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.