Los Angeles is about 4 times smaller than Auckland.

Auckland is approximately 4,894 sq km, while Los Angeles (including the city proper only) is approximately 1,215 sq km, making Los Angeles 24.82% the size of Auckland.
Tip: This to-scale comparison of Auckland vs. Los Angeles 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.