Dublin is about 2.3 times bigger than Santa Barbara.

Santa Barbara is approximately 50 sq km, while Dublin is approximately 118 sq km, making Dublin 133% larger than Santa Barbara.
Tip: This to-scale comparison of Santa Barbara vs. Dublin 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.