South Georgia and South Sandwich Islands is about 7 times bigger than Isle of Man.

Isle of Man is approximately 572 sq km, while South Georgia and South Sandwich Islands is approximately 3,903 sq km, making South Georgia and South Sandwich Islands 582% larger than Isle of Man. Meanwhile, the population of Isle of Man is ~84,118 people (84,083 fewer people live in South Georgia and South Sandwich Islands).
Tip: This to-scale comparison of Isle of Man 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. Isle of Man

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