Pick an attacker and a defender, fill in their stats, choose a move, and the calculator will compute the damage range, percentage of the defender's HP, and the chance to OHKO / 2HKO. Type effectiveness, STAB, weather, terrain, and common modifiers are applied automatically. Random factor: 0.85–1.00.

Attacker

Types
Attack stats
BaseIVEVBoostFinal
Atk
SpA
Hazards on Attacker's side

Move

Power

Defender

Types
Defense stats
BaseIVEVBoostFinal
HP
Def
SpD
Hazards on Defender's side

Speed Calculator

Determines whether the Attacker or the Defender moves first. The speed stat is computed from the same Pokémon you picked above; tweak IV / EV / nature / stage / item / status to match your scenario.

Attacker speed

BaseIVEVBoostFinal
Spe

Defender speed

BaseIVEVBoostFinal
Spe
Attacker speed
Defender speed
Outcome

Result

Damage range
% of HP
Effectiveness
KO probability