Long Island is about 2,758 times smaller than United States.

United States is approximately 9,833,517 sq km, while Long Island is approximately 3,566 km² (1,377 sq mi), making Long Island 0.04% the size of United States.
Tip: This to-scale comparison of United States vs. Long Island uses the Mercator projection, which distorts the size of regions near the poles.
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