South Georgia and South Sandwich Islands is about 149 times smaller than Botswana.

Botswana is approximately 581,730 sq km, while South Georgia and South Sandwich Islands is approximately 3,903 sq km, making South Georgia and South Sandwich Islands 0.67% the size of Botswana.
Tip: This to-scale comparison of Botswana 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. Botswana