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Key[edit]

Θ = Super Effective (x2)
O = Normal effectiveness (x1)
∆ = Poor (x0.5)
X = No effect (x0)

Pokémon Type
Normal
Normal
Fire
Fire
Water
Water
Electric
Electric
Grass
Grass
Ice
Ice
Fighting
Fighting
Poison
Poison
Ground
Ground
Flying
Flying
Psychic
Psychic
Bug
Bug
Rock
Rock
Ghost
Ghost
Dragon
Dragon
Dark
Dark
Steel
Steel
Pokémon Move
Normal
NormalNo
X
Fire
FireFir
Θ Θ Θ Θ
Water
WaterWa
Θ Θ Θ
Electric
ElectricEl
Θ X Θ
Grass
GrassGra
Θ Θ Θ
Ice
IceIc
Θ Θ Θ Θ
Fighting
FightingFig
Θ Θ Θ X Θ Θ
Poison
PoisonPo
Θ Θ X
Ground
GroundGro
Θ Θ Θ X Θ Θ
Flying
FlyingFl
Θ Θ Θ
Psychic
PsychicPs
Θ Θ X
Bug
BugBu
Θ Θ Θ
Rock
RockRo
Θ Θ Θ Θ
Ghost
GhostGh
X Θ Θ
Dragon
DragonDr
Θ
Dark
DarkDa
Θ Θ
Steel
SteelSt
Θ Θ

Note that for Pokémon with duplicated types, multiply the two levels of effectiveness by each other. This is explained in detail on the Dual type attack chart.

Also note that in the First Generation games, Red, Blue, Green, and Yellow, some weaknesses/resistances are different:

  • Ice
    Ice moves are 1x effectiveness vs
    Fire
    Fire, not 0.5x
  • Bug
    Bug moves are 2x effectiveness vs
    Poison
    Poison, not 0.5x
  • Ghost
    Ghost moves are 0x effectiveness vs
    Psychic
    Psychic, not 2x
  • Dark
    Dark and
    Steel
    Steel types do not exist.