Board Thread:Ninjago Wiki News/@comment-25095204-20140703085642/@comment-35089293-20180324144846

Actually, based on evidence,from season 1 and 2,

Zane is oldest at 40-70. Cole is at least 25. Lloyd is 20-24. Kai is 20-25. Jay is 18-21. Nya is 18-24.

Explanation for Lloyd’s age: If Lloyd was 6-7 when Misako dropped him off at the school, and the tea made him grow about 10 years older, and if we include the time it took from the pilot season-season 8, Lloyd is at least 20.