Pokemon Showdown Calculator

Accurately predict damage dealt in Pokemon battles.

Calculator Inputs

Damage Distribution

Damage range distribution for a Pokemon Showdown attack.

Damage Analysis Table

Damage Calculation Step	Value	Explanation

Detailed breakdown of the Pokemon Showdown damage calculation steps.

What is a Pokemon Showdown Damage Calculator?

A Pokemon Showdown Damage Calculator is an essential tool for any competitive Pokemon player, especially those who frequent the online battle simulator Pokemon Showdown. It allows players to predict the exact amount of damage a specific move will inflict on a defending Pokemon. By inputting various parameters such as the attacker's Pokemon, its level, stats, the move used, and the defender's Pokemon and stats, the calculator provides a precise damage range. This tool is invaluable for strategizing, understanding type matchups, and making informed decisions during battles, ultimately improving a player's win rate and understanding of the game's mechanics.

This calculator is used by:

• Competitive battlers aiming to refine their strategies.
• New players learning the intricacies of damage calculations.
• Players testing out new team compositions and move sets.
• Anyone curious about the precise impact of an attack in Pokemon battles.

Common misunderstandings often revolve around the complexity of the damage formula. Many believe it's a simple multiplication, but it involves numerous factors like STAB (Same-Type Attack Bonus), type effectiveness, critical hits, abilities, items, and sometimes even status conditions. This calculator aims to demystify these elements.

Pokemon Showdown Damage Formula and Explanation

The core damage formula in Pokemon, as implemented in Pokemon Showdown, can be complex. Here's a simplified representation focusing on the key components:

Damage = (((2 * AttackerLevel / 5 + 2) * MovePower * AttackStat / DefenseStat) / 50 + 2) * Modifiers

Let's break down the variables and modifiers:

Variable / Modifier	Meaning	Unit	Typical Range / Values
AttackerLevel	The level of the attacking Pokemon.	Level	1 – 100
MovePower	The base power of the move being used.	Power Points (PP)	0 – 150+ (e.g., Struggle has 50, but is limited)
AttackStat	The Attack or Special Attack stat of the attacker, based on move category.	Stat Value	~10 – 350+
DefenseStat	The Defense or Special Defense stat of the defender, based on move category.	Stat Value	~10 – 350+
Modifiers	A product of various factors including: Critical Hit (x2) STAB (Same-Type Attack Bonus) (x1.5 if applicable) Type Effectiveness (x0.5, x1, x2, x4) Abilities (e.g., Guts, Speed Boost) Items (e.g., Choice Band, Life Orb) Burn (x0.5 for physical attacks) Other specific move/Pokemon interactions	Multiplier	Varies widely

The calculator determines a damage range, typically 85% to 100% of the calculated base damage (before modifiers), and then applies the modifiers. The final output is usually presented as a range (e.g., 102-119 damage) and the percentage of the defender's maximum HP that this range represents.

Practical Examples

Example 1: Standard Offensive Threat

Scenario: A Level 50 Charizard (Attack: 150) uses Flamethrower (Power: 90, Special) against a Level 50 Blastoise (Sp. Def: 130).

• Attacker: Charizard, Level 50, Sp. Atk: 150
• Move: Flamethrower, Power: 90, Category: Special
• Defender: Blastoise, Level 50, Sp. Def: 130
• Move Type: Fire, Defender Types: Water
• Modifiers: STAB (Charizard is Fire type), Type Effectiveness (Fire vs Water is x0.5)

Calculation Steps:

1. Base Damage = (((2 * 50 / 5 + 2) * 90 * 150 / 130) / 50 + 2) = ~132.7
2. Damage Range (85%-100%) = ~112 – 132
3. Apply Modifiers: STAB (x1.5) and Type Effectiveness (x0.5) = 1.5 * 0.5 = 0.75
4. Final Damage Range = ~112 * 0.75 to 132 * 0.75 = 84 – 99 damage
5. This represents approximately 20.5% – 24.2% of Blastoise's max HP (assuming standard HP stat for Blastoise).

Example 2: Super Effective Attack

Scenario: A Level 50 Garchomp (Attack: 130) uses Earthquake (Power: 100, Physical) against a Level 50 Heatran (Defense: 100).

• Attacker: Garchomp, Level 50, Attack: 130
• Move: Earthquake, Power: 100, Category: Physical
• Defender: Heatran, Level 50, Defense: 100
• Move Type: Ground, Defender Types: Fire/Steel

Calculation Steps:

1. Base Damage = (((2 * 50 / 5 + 2) * 100 * 130 / 100) / 50 + 2) = ~156.3
2. Damage Range (85%-100%) = ~133 – 156
3. Apply Modifiers: STAB (Garchomp is Ground type, x1.5), Type Effectiveness (Ground vs Fire/Steel is x2) = 1.5 * 2 = 3
4. Final Damage Range = ~133 * 3 to 156 * 3 = 399 – 468 damage
5. This represents a significant portion, likely over 90%, of Heatran's max HP.

Example 3: Unit Conversion Scenario (Hypothetical)

Scenario: A player wants to understand the impact of a move with different base powers.

• Calculation 1: Move Power = 50
• Calculation 2: Move Power = 100

By keeping all other stats identical and changing only the move power, the player can see the direct scaling effect. If the calculator allowed for adjustments to the *defense stat's unit* (e.g., from raw stat to HP percentage equivalent), it would show how different defensive benchmarks affect damage taken. However, Pokemon Showdown primarily uses raw stats for its calculations.

How to Use This Pokemon Showdown Damage Calculator

Using the Pokemon Showdown Damage Calculator is straightforward. Follow these steps:

1. Identify Attacker & Defender: Determine which Pokemon is attacking and which is defending.
2. Input Attacker Details:
   • Enter the Attacking Pokemon's name.
   • Specify its Level (default is 50, common in competitive formats).
   • Input its relevant Attack Stat (Attack for Physical moves, Special Attack for Special moves).
3. Input Move Details:
   • Enter the Attack Move's name.
   • Input the Move Power (base power).
   • Select the Move Category (Physical, Special, or Status). Status moves typically do no damage.
   • Select the Move Type.
4. Input Defender Details:
   • Enter the Defending Pokemon's name.
   • Specify its Level.
   • Input its relevant Defense Stat (Defense for Physical moves, Special Defense for Special moves).
   • Select the defender's Type 1 and Type 2 (if applicable).
5. Include Modifiers:
   • Enter relevant Abilities and Items that might alter damage output or taken.
   • Specify if it's a Critical Hit.
6. Calculate: Click the "Calculate Damage" button.
7. Interpret Results: The calculator will display the damage range (minimum and maximum possible damage), the average damage, and the percentage of the defender's maximum HP that this damage represents. Intermediate values like the damage multiplier are also shown.

Selecting Correct Units/Values: Ensure you are using the correct stats (Attack vs. Special Attack, Defense vs. Special Defense) based on the move's category. For levels, 50 is standard for many competitive formats, but you can adjust it. Abilities and items often have specific keywords you'll need to know (e.g., 'Choice Band' for item, 'Intimidate' for ability).

Interpreting Results: The damage range indicates the variability due to the game's internal damage roll (85%-100%). The percentage of HP is crucial for assessing if a move can knock out the opponent. The 'Effective Move Type' reflects the final damage multiplier after considering STAB and type matchups.

Key Factors That Affect Pokemon Showdown Damage

Numerous factors contribute to the final damage output in Pokemon Showdown. Understanding these is key to effective battling:

1. Base Stats: The fundamental Attack, Special Attack, Defense, and Special Defense stats of the involved Pokemon are the bedrock of any calculation. Higher offensive stats mean more damage, while higher defensive stats mitigate it.
2. Level: As seen in the formula, the level of both Pokemon plays a significant role. Higher levels amplify damage output.
3. Move Power: Stronger moves inherently deal more damage. This is one of the most direct factors.
4. STAB (Same-Type Attack Bonus): If the move's type matches one of the user's Pokemon types, the damage is boosted by 50% (x1.5 multiplier). This is a crucial factor for offensive Pokemon.
5. Type Effectiveness: The interaction between the move's type and the defender's type(s) is paramount. Super effective (x2), Not very effective (x0.5), and Immune (x0) significantly alter damage. Double weaknesses can lead to x4 damage, while double resistances can result in x0.25 damage.
6. Critical Hits: Critical hits bypass most defensive boosts and increase damage by 50% (x1.5 multiplier in Gen 1-5, x2 multiplier in Gen 6+). This calculator assumes Gen 6+ mechanics for critical hits.
7. Abilities: Many abilities directly impact damage. Examples include 'Guts' (boosts Attack when statused), 'Speed Boost' (increases Speed over time, indirectly affecting offense), 'Tinted Lens' (boosts damage of Not Very Effective moves), or 'Sand Force' (boosts Rock, Ground, Steel moves in sandstorm).
8. Items: Held items like 'Choice Band' (boosts Attack but locks move), 'Life Orb' (boosts damage at HP cost), or 'Metronome' (boosts consecutively used moves) can drastically alter damage calculations.
9. Status Conditions: A burn halves the power of physical attacks (x0.5 multiplier), while poison and toxic deal damage based on HP percentages. Paralysis halves Speed and can cause fumbles.
10. Weather: Certain weather conditions boost specific types of moves (e.g., Fire moves in harsh sunlight, Water moves in rain) or activate abilities.
11. Screens: Reflect (halves physical damage) and Light Screen (halves special damage) are powerful defensive tools that dramatically reduce incoming damage.

FAQ: Pokemon Showdown Damage Calculator

Q1: How accurate is this Pokemon Showdown damage calculator?

This calculator is designed to be highly accurate, using the standard damage formula implemented by Pokemon Showdown. However, it may not account for every single niche ability interaction, specific move glitch, or complex turn-based effects that could occur in very specific scenarios.

Q2: What does the damage range mean?

Pokemon moves have an inherent damage roll that fluctuates between 85% and 100% of the calculated base damage. The range (e.g., 102-119) shows the minimum and maximum damage you could expect from that specific attack under those conditions.

Q3: How do I input stats like Attack or Defense?

You should input the Pokémon's actual stat value as displayed in its status screen in Pokemon Showdown or the main games. These are usually found after the Pokémon's level and IVs/EVs are considered.

Q4: What if the move has no base power (e.g., Struggle)?

For moves like Struggle, you would input their listed base power (50). The calculator's formula will then apply it, but remember Struggle has specific side effects (user takes recoil damage) not calculated here.

Q5: How are abilities like Intimidate handled?

Abilities like Intimidate lower the opponent's Attack stat upon switching in. This calculator assumes the stats provided are current. For effects like Intimidate, you would manually adjust the defender's relevant stat *before* entering it into the calculator.

Q6: What's the difference between Physical and Special Attack/Defense?

Moves are categorized as either Physical or Special. Physical moves use the attacker's Attack stat and the defender's Defense stat. Special moves use the attacker's Special Attack stat and the defender's Special Defense stat. The 'Move Category' input determines which stats are used.

Q7: Can this calculator predict critical hits?

Yes, there is a specific input for Critical Hit. Selecting 'Yes' will apply the critical hit multiplier (x2 in modern generations) to the damage calculation.

Q8: What if a Pokemon has multiple types? How does that affect damage?

When the defender has two types, type effectiveness is calculated for both. If both types are weak to the move, the multiplier is x2 * x2 = x4. If both resist, it's x0.5 * x0.5 = x0.25. If one is weak and one resists, it's x2 * x0.5 = x1 (neutral). Input the defender's two types into the respective fields.

Q9: Does the calculator account for EVs and IVs?

The calculator uses the final stat values. While it doesn't have separate fields for EVs and IVs, you should input the Pokémon's *actual stat value* as seen in-game, which already reflects its EVs, IVs, Nature, and Ability/Item modifications.

Q10: What happens if I select 'Status' for Move Category?

Status moves, by definition, do not deal direct damage. If you select 'Status' for the Move Category, the calculator will output 0 damage, as expected.