Pokémon/Attack chart

Key

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

Pokémon Type	File:PkmnType Normal.gif	File:PkmnType Fire.gif	File:PkmnType Water.gif	File:PkmnType Electric.gif	File:PkmnType Grass.gif	File:PkmnType Ice.gif	File:PkmnType Fighting.gif	File:PkmnType Poison.gif	File:PkmnType Ground.gif	File:PkmnType Flying.gif	File:PkmnType Psychic.gif	File:PkmnType Bug.gif	File:PkmnType Rock.gif	File:PkmnType Ghost.gif	File:PkmnType Dragon.gif	File:PkmnType Dark.gif	File:PkmnType Steel.gif
Pokémon Move
File:PkmnType Normal.gifNo													∆	X			∆
File:PkmnType Fire.gifFir		∆	∆		Θ	Θ						Θ	∆		∆		Θ
File:PkmnType Water.gifWa		Θ	∆		∆				Θ				Θ		∆
File:PkmnType Electric.gifEl			Θ	∆	∆				X	Θ					∆
File:PkmnType Grass.gifGra		∆	Θ		∆			∆	Θ	∆		∆	Θ		∆		∆
File:PkmnType Ice.gifIc		∆	∆		Θ	∆			Θ	Θ					Θ		∆
File:PkmnType Fighting.gifFig	Θ					Θ		∆		∆	∆	∆	Θ	X		Θ	Θ
File:PkmnType Poison.gifPo					Θ			∆	∆			Θ	∆	∆			X
File:PkmnType Ground.gifGro		Θ		Θ	∆			Θ		X		∆	Θ				Θ
File:PkmnType Flying.gifFl				∆	Θ		Θ					Θ	∆				∆
File:PkmnType Psychic.gifPs							Θ	Θ			∆					X	∆
File:PkmnType Bug.gifBu		∆			Θ		∆	∆		∆	Θ			∆		Θ	∆
File:PkmnType Rock.gifRo		Θ				Θ	∆		∆	Θ		Θ					∆
File:PkmnType Ghost.gifGh	X										Θ			Θ		∆	∆
File:PkmnType Dragon.gifDr															Θ		∆
File:PkmnType Dark.gifDa							∆				Θ			Θ		∆	∆
File:PkmnType Steel.gifSt		∆	∆	∆		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:

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