Hawaii is about 15 times bigger than Hong Kong.

Hong Kong is approximately 1,108 sq km, while Hawaii is approximately 16,635 sq km, making Hawaii 1,401% larger than Hong Kong. Meanwhile, the population of Hong Kong is ~7.3 million people (5.9 million fewer people live in Hawaii).
Tip: This to-scale comparison of Hong Kong vs. Hawaii uses the Mercator projection, which distorts the size of regions near the poles.