New York City is about 9 times bigger than The Hague (Den Haag).

The Hague (Den Haag) (excluding the city's 15.68 sq km of water area) is approximately 82 sq km, while New York City (including all five boroughs: Manhattan, Brooklyn, Queens, The Bronx, and Staten Island) is approximately 781 sq km, making New York City 847% larger than The Hague (Den Haag).
Tip: This to-scale comparison of The Hague (Den Haag) vs. New York City uses the Mercator projection, which distorts the size of regions near the poles.