Dublin is about 8 times smaller than Indianapolis.

Indianapolis is approximately 935 sq km, while Dublin is approximately 118 sq km, making Dublin 12.6% the size of Indianapolis.
Tip: This to-scale comparison of Indianapolis 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.