Davis is about 6 times smaller than Amsterdam.

Amsterdam is approximately 166 sq km, while Davis (map shows its 53 named neighbourhoods; the area covers the whole city) is approximately 26 sq km, making Davis 15.58% the size of Amsterdam.
Tip: This to-scale comparison of Amsterdam vs. Davis 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.