Norway is about 1.2 times smaller than Montana.

Montana is approximately 376,979 sq km, while Norway is approximately 323,802 sq km, making Norway 85.89% the size of Montana. Meanwhile, the population of Montana is ~989,415 people (4.6 million more people live in Norway).
Tip: This to-scale comparison of Montana vs. Norway 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.