The essential answer
Check the opponent’s one or two types, then bring a Pokémon that knows a super-effective move. One weakness is 1.6× and a double weakness is 2.56×.
Move type determines effectiveness
The game compares the move type with the defender, so always inspect the actual moveset.
Same-type attack bonus (STAB)
A Pokémon deals extra damage when a move matches one of its own types.
Defense still matters
When attack multipliers tie, Type Scout favors types that take less damage from the opponent’s likely same-type moves.
Pokémon GO multiplier formula
The final multiplier is 1.6ⁿ. Weakness adds 1, resistance subtracts 1, and a main-series immunity subtracts 2.
Common examples
- Water into Fire: 1.6×
- Ice into Dragon/Flying: 2.56×
- Ground into Flying: about 0.391×
Frequently asked questions
What are the type-effectiveness multipliers in Pokémon GO?
A single weakness deals 1.6× damage and a double weakness deals 2.56×. Resistance is 0.625×, while main-series immunities become strong resistances in Pokémon GO.
Should I check the Pokémon type or the move type?
Move type determines effectiveness. Bring a Pokémon that knows a super-effective move, ideally matching its own type for the same-type attack bonus.
How are dual types calculated?
A move is checked against both defending types and the effects stack. Ice is strong against both Dragon and Flying, for example, so it deals 2.56× damage.