Indianapolis is about 1.8 times bigger than Budapest.

Budapest is approximately 525 sq km, while Indianapolis is approximately 935 sq km, making Indianapolis 78% larger than Budapest.
Tip: This to-scale comparison of Budapest vs. Indianapolis 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.