pokemon damage calculator

What this pokemon damage calculator does

This page gives you a fast way to estimate how hard one Pokémon hits another. It uses the standard damage structure from modern games, including level scaling, move power, offensive and defensive stats, STAB, type effectiveness, critical hits, weather-style boosts, burn penalties, and a random damage roll range.

In competitive play, these estimates are useful for decisions like:

• Is this move a clean KO or only a 2HKO?
• Should you set up with Swords Dance/Nasty Plot first?
• Can your target survive and retaliate?
• Do you need hazard support to secure the knockout?

How Pokémon damage is calculated (simplified)

Base damage

The core damage before multipliers is based on level, power, Attack/Special Attack, and Defense/Special Defense:

Base Damage = floor((((2 × Level / 5 + 2) × Power × A / D) / 50) + 2)

Final multipliers

After base damage is computed, battle modifiers are applied. This calculator uses:

• STAB: Usually 1.5× when move type matches user type.
• Type effectiveness: 0×, 0.25×, 0.5×, 1×, 2×, or 4×.
• Critical hit: 1.5× in modern games.
• Burn: 0.5× to physical damage (unless ignored by specific effects).
• Weather/field: Generic 0.5×/1×/1.5× control.
• Other: Flexible multiplier for item, ability, terrain, and similar factors.
• Random roll: from 0.85× to 1.00×, producing min and max damage values.

How to use this calculator effectively

1) Enter realistic battle stats

Use actual in-battle stats when possible, not base stats. EVs, IVs, level, nature, and boosts can significantly change outcomes.

2) Match category and burn correctly

Burn only lowers physical damage in this model. If your move is special, burn should not reduce output.

3) Include matchup multipliers

Set type effectiveness accurately. For dual types, use combined multiplier (for example, 4× or 0.25×).

4) Add target HP for practical KO planning

When target HP is entered, the calculator reports percentage range and estimated hits to KO. This is particularly helpful when planning endgame win conditions.

Competitive battle tips for better damage planning

• Use min-roll damage for conservative lines and max-roll damage for aggressive lines.
• If a KO is uncertain, include entry hazards and chip damage in your planning.
• Check whether priority moves finish the target after your expected roll.
• Test both neutral and boosted scenarios (e.g., with Choice items or setup moves).
• Always consider defensive Terastallization or typing changes in modern formats.

Limitations and assumptions

This tool is intentionally streamlined for speed. Official games perform many rounding steps and special-case checks that can alter exact damage numbers by a few points. Abilities, multi-hit nuances, screens, spread move penalties, and generation-specific quirks are represented through the flexible “Other Multiplier,” but are not automatically simulated one by one.

For deep tournament prep, use this as a fast first pass, then verify with a full competitive calc if needed.

Quick FAQ

Does this support physical and special damage?

Yes. Use the move category selector and input the appropriate attacking and defending stats.

Why do I see a damage range instead of one number?

Pokémon damage includes a random factor from 85% to 100%, so each hit can vary.

Can I model item or ability boosts?

Yes. Put combined effects into the “Other Multiplier” field (for example, 1.3 for Life Orb style boost).

What if the move does no damage?

Set type effectiveness to 0× for immunity. The calculator will output zero damage.