Amsterdam is about 17 times smaller than Ottawa.

Ottawa is approximately 2,779 sq km, while Amsterdam is approximately 166 sq km, making Amsterdam 5.97% the size of Ottawa.
Tip: This to-scale comparison of Ottawa vs. Amsterdam 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.