Tokyo is about 3.1 times bigger than Cincinnati.

Cincinnati is approximately 202 sq km, while Tokyo is approximately 619 sq km, making Tokyo 207% larger than Cincinnati.
Tip: This to-scale comparison of Cincinnati vs. Tokyo 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.