Fargo is about 4.6 times smaller than Tokyo.

Tokyo is approximately 619 sq km, while Fargo (map shows its 38 named neighbourhoods; the area covers the whole city) is approximately 133 sq km, making Fargo 21.54% the size of Tokyo.
Tip: This to-scale comparison of Tokyo vs. Fargo 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.