New Haven is about 2.4 times smaller than Dublin.

Dublin is approximately 118 sq km, while New Haven is approximately 48 sq km, making New Haven 41.09% the size of Dublin.
Tip: This to-scale comparison of Dublin vs. New Haven uses the Mercator projection, which distorts the size of regions near the poles.
Our free app, MapSize by MyLifeElsewhere — compare any two places, to scale on your mobile device.