Amsterdam is about 3.2 times smaller than Budapest.

Budapest is approximately 525 sq km, while Amsterdam is approximately 166 sq km, making Amsterdam 31.56% the size of Budapest.
Tip: This to-scale comparison of Budapest 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.