Monaco is about 3,914 times smaller than French Southern and Antarctic Lands.

French Southern and Antarctic Lands is approximately 7,829 sq km, while Monaco is approximately 2 sq km, making Monaco 0.03% the size of French Southern and Antarctic Lands.
Tip: This to-scale comparison of French Southern and Antarctic Lands vs. Monaco uses the Mercator projection, which distorts the size of regions near the poles.
Compare further: Monaco vs. French Southern and Antarctic Lands