Combat Power

Combat Power, often shortened to simply CP in the game, is the factor that determines how much damage a Pokémon can inflict on its opponent during a Gym battle.

Algorithm
Combat Power is based on a Pokémon's size, species and the trainer's level. It is determined when a Pokémon is tapped on in the map.

Increasing CP
Trainers can boost their Pokémon's Combat Power by giving them Stardust and candies, which also boost Hit Points and their size. This is part of powering up.

pt-br:Poder de combate