Amsterdam is about 2.2 times smaller than Mesa.

Mesa (map shows its 6 named neighbourhoods; the area covers the whole city) is approximately 367 sq km, while Amsterdam is approximately 166 sq km, making Amsterdam 45.13% the size of Mesa.
Tip: This to-scale comparison of Mesa 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.