South Georgia and South Sandwich Islands is about 69 times smaller than Gabon.

Gabon is approximately 267,667 sq km, while South Georgia and South Sandwich Islands is approximately 3,903 sq km, making South Georgia and South Sandwich Islands 1.46% the size of Gabon.
Tip: This to-scale comparison of Gabon 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. Gabon