Dominican Republic is about 6 times bigger than French Southern and Antarctic Lands.

French Southern and Antarctic Lands is approximately 7,829 sq km, while Dominican Republic is approximately 48,670 sq km, making Dominican Republic 522% larger than French Southern and Antarctic Lands.
Tip: This to-scale comparison of French Southern and Antarctic Lands vs. Dominican Republic uses the Mercator projection, which distorts the size of regions near the poles.
Compare further: Dominican Republic vs. French Southern and Antarctic Lands