BBJ Belt system and its minimum times

BLUE TO PURPLE – 2 YEARS
PURPLE TO BROWN – 1 AND A HALF YEAR
BROWN TO BLACK – 1 YEAR
The minimum required times shown above are to be considered starting from the day the athlete is registered at the IBJJF in each belt. It is up to each instructor to decide how long it takes for a student to be graded, as long as the minimum times required for each belt are fulfilled.

*WHITE TO BLUE – 1/2 YEAR(s)
There is no official guideline for going from White to Blue, but generally it takes 1/2 years (at the discretion of the instructor).

For the official information about belts in BBJ, check http://www.ibjjf.org/graduation.htm