Amsterdam is about 4.1 times smaller than Tehran.

Tehran is approximately 686 sq km, while Amsterdam is approximately 166 sq km, making Amsterdam 24.16% the size of Tehran.
Tip: This to-scale comparison of Tehran 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.