Combat Rating (abbreviated CR) is a statistic possessed by player characters representing the overall power of their equipment. Combat rating is calculated by averaging the item levels of all of a player's equipped items. Update 6 made this statistic visible to players through the statistics tab in the inventory screen. Update 6 also introduced combat rating requirements on some endgame alerts, duos and raids, preventing players from queuing for these instances unless they had a sufficiently high combat rating.
Until 2013 the combat rating was considered a PvE only statistic since unmodded PvP gear never had an item level higher than 30. Game update 25 then introduced a PvP item level and now every player has a Combat Rating and a PvP Combat Rating.
It should be noted that items players could not use due to lack of DLC packs do count towards combat rating.
Each Item is weighted with a coefficient, so it is not just counting all values and dividing by 14. A user approximated the equation in the SOE Forum and it goes like this:
(1.4We + 1.5He + 0.7Ne + 0.95Ba + 1.75Ch + 1.75Le + 0.5Ri1 + 0.7Tr + 0.7Fa + 1.3Sh + 1Ha + 1Wa + 1Fe + 0.5Ri2) / 14
- We = Weapon
- He = Head
- Ne = Neck
- Ba = Back
- Ch = Chest
- Le = Legs
- Ri1 = Ring 1
- Tr = Trinket
- Fa = Face
- Sh = Shoulders
- Ha = Hands
- Wa = Waist
- Fe = Feet
- Ri2 = Ring 2
To raise your CR faster, get your higher gears in following order:
- Hands and/or Waist and/or Feet
- Neck and/or Trinket and/or Face