Gibraltar is about 1,204 times smaller than French Southern and Antarctic Lands.

French Southern and Antarctic Lands is approximately 7,829 sq km, while Gibraltar is approximately 7 sq km, making Gibraltar 0.08% the size of French Southern and Antarctic Lands.
Tip: This to-scale comparison of French Southern and Antarctic Lands vs. Gibraltar uses the Mercator projection, which distorts the size of regions near the poles.
Compare further: Gibraltar vs. French Southern and Antarctic Lands