Auckland is about 4 times bigger than Los Angeles.

Los Angeles (including the city proper only) is approximately 1,215 sq km, while Auckland is approximately 4,894 sq km, making Auckland 303% larger than Los Angeles.
Tip: This to-scale comparison of Los Angeles vs. Auckland 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.