South Georgia and South Sandwich Islands is about 50 times smaller than Senegal.

Senegal is approximately 196,722 sq km, while South Georgia and South Sandwich Islands is approximately 3,903 sq km, making South Georgia and South Sandwich Islands 1.98% the size of Senegal.
Tip: This to-scale comparison of Senegal vs. South Georgia and South Sandwich Islands uses the Mercator projection, which distorts the size of regions near the poles.
Compare further: South Georgia and South Sandwich Islands vs. Senegal