Attacker

Move

Defender

Damage Results

Minimum Damage: 0
Maximum Damage: 0
KO Chance: 0%

Tired of losing battles because your attack just barely misses the KO? Our Pokémon KO Chance Calculator takes the guesswork out of competitive battles, giving you exact damage ranges and knockout probabilities based on the official game formulas. Whether you’re playing Pokémon Emerald, Scarlet/Violet, or any generation in between, this tool helps you strategize like a pro.

How the KO Calculator Works

Simply enter:

  1. Attacker’s stats (Level, Attack/Special Attack, stat boosts)
  2. Move details (Power, type, effectiveness like STAB or super effective)
  3. Defender’s stats (HP, Defense/Special Defense, stat drops)

The calculator instantly shows:

  • ✅ Minimum & Maximum Damage (factoring in the 85%-100% damage roll)
  • ✅ KO Chance (based on the 16 possible damage rolls in Pokémon games)

Need to check older games? This also works as a Pokémon Emerald Damage Calculator or Pokémon Damage Calculator Gen 3—just input the right stats!

Why This Tool Is Accurate

  • Uses the actual damage formula from core Pokémon games.
  • Accounts for stat boosts (e.g., Swords Dance, Intimidate) and type matchups.
  • Includes random damage variance (85%-100%) for real battle accuracy.

Key Features

✔ Real-time results – No waiting, updates as you type.
✔ Works for all generations – From Gen 3 (Emerald) to *Gen 9 (Scarlet/Violet)*.
✔ Competitive-ready – Perfect for Ranked Battles, Smogon, or casual play.

Pro Tips for Guaranteed KOs

  1. Boost your Attack – Use moves like Swords Dance or items like Choice Band.
  2. Lower their Defense – Screech or Shadow Ball (for Sp. Def drops) can secure OHKOs.
  3. Exploit STAB – Same-type moves deal 1.5× damage—always check your typing!

FAQs

Does this work for Pokémon Emerald or Gen 3?


Yes! Input the stats from Emerald or any Gen 3 game, and it calculates just like modern titles.

How is KO chance calculated?


The game tests 16 damage rolls (85% to 100% of max damage). If 12 rolls KO, your chance is 75%.

What’s the difference between min and max damage?


Min = 85% of calculated damage, Max = 100%. Most attacks land in between.