Denver is about 2.4 times smaller than Indianapolis.

Indianapolis is approximately 935 sq km, while Denver is approximately 396 sq km, making Denver 42.4% the size of Indianapolis.
Tip: This to-scale comparison of Indianapolis vs. Denver 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.