The Hague (Den Haag) is about 5 times smaller than Wellington.

Wellington (map shows its 57 named neighbourhoods; the area covers the whole city) is approximately 444 sq km, while The Hague (Den Haag) (excluding the city's 15.68 sq km of water area) is approximately 82 sq km, making The Hague (Den Haag) 18.57% the size of Wellington.
Tip: This to-scale comparison of Wellington vs. The Hague (Den Haag) uses the Mercator projection, which distorts the size of regions near the poles.
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