Fargo is about 3.2 times smaller than Montreal.

Montreal is approximately 432 sq km, while Fargo (map shows its 38 named neighbourhoods; the area covers the whole city) is approximately 133 sq km, making Fargo 30.9% the size of Montreal.
Tip: This to-scale comparison of Montreal 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.