Introduction
This Pokémon Damage Calculator helps you figure out how much damage your moves will deal in battle. Pick your attacker and defender, set their stats, moves, items, and abilities, then hit calculate. You will see exact damage numbers, KO chances, and a visual chart that compares both sides. It works for every generation from Red & Blue all the way to Scarlet & Violet, and it supports key mechanics like Tera Types, weather and terrain.
This tool gives you the numbers you need to build a competitive team or to see if your Garchomp can knock out a Toxapex. Use it to test EV spreads, compare items, and find the best moves for any matchup. You get fast, accurate damage calculations so you can win more battles.
How to Use Our Pokémon Damage Calculator
Enter your Pokémon, their stats, and their moves below. The calculator will show you how much damage each move deals and how many hits it takes to knock out the other Pokémon.
Generation: Pick the game generation you are playing. This changes how damage is calculated and which features are available.
Battle Format: Singles or Doubles. In either setting, damage is worked out for one attacker hitting one target.
Default Level: Set the level for both Pokémon. Choose 100, 50, or 5 depending on your format.
Auto-Level: Turn this on to force both Pokémon to the same level. Type in the level you want.
Weather / Field: Pick the active weather condition like Sun, Rain, Sandstorm, or Snow. This changes the power of certain move types.3
Terrain: Pick the active terrain if you are playing Gen 6 or later. Terrain boosts the power of matching move types.3
Pokémon (Attacker and Defender): Type a Pokémon name into each search box and select it from the list. This fills in its types and base stats.
Type 1 and Type 2: These are set when you pick a Pokémon. You can change them by hand if needed.
Tera Type and Terastallized: In Gen 9, pick a Tera Type and check the box to activate Terastallization. This changes STAB and defensive typing.4
Dynamax: This switch shows in Gen 8. It does not change the damage figures.
Level: Set each Pokémon's level. This affects all stat calculations.
Nature: Pick the nature for each Pokémon. Most natures raise one stat and lower another.2 The change is 10% each way.
Ability: Choose an ability like Adaptability, Huge Power, Guts, Technician, or Levitate. These change damage output or type immunities.
Item: Pick a held item like Life Orb, Choice Band, Choice Specs, or Expert Belt. These boost damage in different ways.
Status: Set a status condition like Burn. Burn lowers the power of physical moves.3 The calculator halves physical damage from a burned attacker.
EVs and IVs: Enter Effort Values (0–252) and Individual Values (0–31) for each stat. These directly change the final stat numbers.
Stat Boosts: Use the dropdown next to each stat to set in-battle boosts from -6 to +6. This simulates moves like Swords Dance or Calm Mind.
Moves (1–4): Pick up to four moves for each Pokémon. Each move shows its type and base power in the dropdown.
Calculate Button: Press this to run the damage calculation. Results appear below with damage ranges, KO chances, HP bars, and a comparison chart.
Reset Button: Press this to clear all fields and return the calculator to its default settings.
How Pokémon Damage Works
In Pokémon battles, every attack deals a specific amount of damage. That number depends on several things: the attacker's level, its Attack or Special Attack stat, the move's power, and the defender's Defense or Special Defense stat.1 The game also rolls a random number between 85% and 100%, so damage is never exactly the same each time. Understanding how these numbers interact is similar to working with a Percentage Calculator, since so many modifiers in the damage formula are percentage-based multipliers.
Type matchups play a big role. Every move has a type, like Fire or Water. If the move's type is strong against the defender's type, it deals double damage.1 If it is weak against it, damage is cut in half.1 Some types have no effect at all, like Normal moves against Ghost types.5 A Pokémon can have two types, so these multipliers stack.1 A move can deal 4× damage or just 0.25× depending on the matchup.
STAB stands for Same Type Attack Bonus. When a Pokémon uses a move that matches its own type, the damage goes up by 50%.1 For example, a Water-type Pokémon using Surf gets a 1.5× boost. Abilities like Adaptability raise this bonus even higher.7 The calculator uses 2× for it.
Stats are built from a Pokémon's base stats, its level, EVs (effort values), IVs (individual values), and its nature. EVs go up to 252 per stat and come from training. IVs range from 0 to 31 and are set when you catch or hatch a Pokémon. Most natures raise one stat and lower another.2 The change is 10% each way.
Weather, terrain, held items, abilities, and stat boosts all change the final damage number. Sun powers up Fire moves and weakens Water moves.3 Rain does the opposite.3 Items like Life Orb add 30% more damage. Choice Band and Choice Specs boost a stat but lock you into the first move you use.3 The calculator counts the boost as 50%. Stat boosts from moves like Swords Dance multiply your attacking stat during battle.
This calculator takes all of these factors and gives you the exact damage range for each move. It shows the minimum and maximum hit, the percentage of the defender's HP lost, and how many hits it takes to knock out the target. Use it to plan your team, pick the right moves, and know your matchups before a battle starts.