Kazakhstan is about 348 times bigger than French Southern and Antarctic Lands.

French Southern and Antarctic Lands is approximately 7,829 sq km, while Kazakhstan is approximately 2,724,900 sq km, making Kazakhstan 34,705% larger than French Southern and Antarctic Lands.
Tip: This to-scale comparison of French Southern and Antarctic Lands vs. Kazakhstan uses the Mercator projection, which distorts the size of regions near the poles.
Compare further: Kazakhstan vs. French Southern and Antarctic Lands