South Georgia and South Sandwich Islands is about 5 times smaller than Massachusetts.

Massachusetts is approximately 20,306 sq km, while South Georgia and South Sandwich Islands is approximately 3,903 sq km, making South Georgia and South Sandwich Islands 19.22% the size of Massachusetts.
Tip: This to-scale comparison of Massachusetts 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. Massachusetts