I recently upgraded my Pokémon storage to hold more Pokémon. After doing so, I noticed the CP on my Pokémon changed - some are better, some are worse. What happened?

2 Answers 2


It actually had nothing to do with you upgrading your storage. The way CP is calculated has been adjusted and it is now reflected in-game.

See this announcement:

We have made adjustments to the CP (Combat Power) of various Pokémon. Some Pokémon, such as Alakazam, Rhydon, and Gengar will have their CP increased. Others will have their CP lowered. These changes will allow a more balanced and competitive battling and training experience in Gyms. We will continue to adjust the CP going forward to improve the game balance when necessary.

  • 1
    The more likely case is that base stats have changed, not the formula to compute CP.
    – Jerry
    Commented Nov 22, 2016 at 10:49
  • @Jerry actually, I believe it was a formula change. It seems that Pokemon with peak attack stats have higher CP, rather than only Pokemon with high attack AND special attack, etc
    – Vemonus
    Commented Nov 22, 2016 at 19:57
  • After reading this again, I believe we are talking about base stats in different contexts; hence the confusion. You could improve this answer by disambiguating between them.
    – Jerry
    Commented Dec 5, 2016 at 13:24

With the version 0.47 update, the formula to compute base stats has changed. Base stats are used in the formula to compute CP. Hence, all CP values are changed. Find more details from Understanding the Pokemon Stats Update.

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