South Georgia and South Sandwich Islands is about 55 times smaller than Guyana.

Guyana is approximately 214,969 sq km, while South Georgia and South Sandwich Islands is approximately 3,903 sq km, making South Georgia and South Sandwich Islands 1.82% the size of Guyana.
Tip: This to-scale comparison of Guyana 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. Guyana