Jersey is about 1.4 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 Jersey is approximately 116 sq km, making Jersey 41% larger than The Hague (Den Haag).
Tip: This to-scale comparison of The Hague (Den Haag) vs. Jersey uses the Mercator projection, which distorts the size of regions near the poles.