Rome is about 1.4 times bigger than Indianapolis.

Indianapolis is approximately 935 sq km, while Rome is approximately 1,287 sq km, making Rome 38% larger than Indianapolis.
Tip: This to-scale comparison of Indianapolis vs. Rome 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.