Paris is about 2 times smaller than Antwerp.

Antwerp (map shows its 62 named neighbourhoods; the area covers the whole city) is approximately 208 sq km, while Paris is approximately 105 sq km, making Paris 50.62% the size of Antwerp.
Tip: This to-scale comparison of Antwerp 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.