Auckland is about 1.9 times bigger than Moscow.

Moscow (map shows its 125 districts within the pre-2012 boundary; the area includes New Moscow) is approximately 2,562 sq km, while Auckland is approximately 4,894 sq km, making Auckland 91% larger than Moscow.
Tip: This to-scale comparison of Moscow 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.