Hawaii is about 4.8 times smaller than Maine.

Maine is approximately 79,931 sq km, while Hawaii is approximately 16,635 sq km, making Hawaii 20.81% the size of Maine. Meanwhile, the population of Maine is ~1.3 million people (31,940 more people live in Hawaii).
Tip: This to-scale comparison of Maine vs. Hawaii uses the Mercator projection, which distorts the size of regions near the poles.