Trinidad and Tobago is about 1.5 times smaller than French Southern and Antarctic Lands.

French Southern and Antarctic Lands is approximately 7,829 sq km, while Trinidad and Tobago is approximately 5,128 sq km, making Trinidad and Tobago 65.5% the size of French Southern and Antarctic Lands.
Tip: This to-scale comparison of French Southern and Antarctic Lands vs. Trinidad and Tobago uses the Mercator projection, which distorts the size of regions near the poles.
Compare further: Trinidad and Tobago vs. French Southern and Antarctic Lands