South Georgia and South Sandwich Islands is about 64 times smaller than Michigan.

Michigan is approximately 250,493 sq km, while South Georgia and South Sandwich Islands is approximately 3,903 sq km, making South Georgia and South Sandwich Islands 1.56% the size of Michigan.
Tip: This to-scale comparison of Michigan 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. Michigan