Indianapolis is about 1.5 times bigger than Tokyo.

Tokyo is approximately 619 sq km, while Indianapolis is approximately 935 sq km, making Indianapolis 51% larger than Tokyo.
Tip: This to-scale comparison of Tokyo 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.