Burkina Faso is about 35 times bigger than French Southern and Antarctic Lands.

French Southern and Antarctic Lands is approximately 7,829 sq km, while Burkina Faso is approximately 274,200 sq km, making Burkina Faso 3,402% larger than French Southern and Antarctic Lands.
Tip: This to-scale comparison of French Southern and Antarctic Lands vs. Burkina Faso uses the Mercator projection, which distorts the size of regions near the poles.
Compare further: Burkina Faso vs. French Southern and Antarctic Lands