Santa Ana is about 2.3 times smaller than Amsterdam.

Amsterdam is approximately 166 sq km, while Santa Ana (map shows its 60 named neighbourhoods; the area covers the whole city) is approximately 71 sq km, making Santa Ana 42.78% the size of Amsterdam.
Tip: This to-scale comparison of Amsterdam vs. Santa Ana 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.