Guam is about 7 times smaller than South Georgia and South Sandwich Islands.

South Georgia and South Sandwich Islands is approximately 3,903 sq km, while Guam is approximately 544 sq km, making Guam 13.94% the size of South Georgia and South Sandwich Islands. Meanwhile, the population of South Georgia and South Sandwich Islands is ~35 people (168,964 more people live in Guam).
Tip: This to-scale comparison of South Georgia and South Sandwich Islands vs. Guam uses the Mercator projection, which distorts the size of regions near the poles.

Compare further: Guam vs. South Georgia and South Sandwich Islands

Our free app, MapSize by MyLifeElsewhere — compare any two places, to scale on your mobile device.