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[edit] Key

Θ = Super Effective (x2)
O = Normal Attack (x1)
∆ = Poor (x0.5)
X = None (x0)

Pokémon Type
Pokémon Move
No													∆	X			∆
Fir		∆	∆		Θ	Θ						Θ	∆		∆		Θ
Wa		Θ	∆		∆				Θ				Θ		∆
El			Θ	∆	∆				X	Θ					∆
Gra		∆	Θ		∆			∆	Θ	∆		∆	Θ		∆		∆
Ic		∆	∆		Θ	∆			Θ	Θ					Θ		∆
Fig	Θ					Θ		∆		∆	∆	∆	Θ	X		Θ	Θ
Po					Θ			∆	∆			Θ	∆	∆			X
Gro		Θ		Θ	∆			Θ		X		∆	Θ				Θ
Fl				∆	Θ		Θ					Θ	∆				∆
Ps							Θ	Θ			∆					X	∆
Bu		∆			Θ		∆	∆		∆	Θ			∆		Θ	∆
Ro		Θ				Θ	∆		∆	Θ		Θ					∆
Gh	X										Θ			Θ		∆	∆
Dr															Θ		∆
Da							∆				Θ			Θ		∆	∆
St		∆	∆	∆		Θ							Θ				∆

Note that Pokémon with duplicated types are weak or strong respectivly.

For example, Dragonite, which is type, is 4x weak against ice type.

Also note that in Generation 1 games (Red, Blue, Green, Yellow) some weaknesses/resistances are different:

• moves are 1x effectiveness vs , not 0.5x
• moves are 2x effectiveness vs , not 0.5x
• moves are 0x effectiveness vs , not 2x
• and do not exist.