Pokémon Type Weakness Calculator
Calculate Defensive Matchups
Select a Pokémon’s primary and optional secondary type to instantly see its defensive weaknesses, resistances, and immunities. This pokemon type weakness calculator is essential for competitive team building.
Weaknesses (Takes More Damage)
Resistances (Takes Less Damage)
Immunities (Takes No Damage)
Defensive Matchup Chart
Full Pokémon Type Chart (Attacker vs. Defender)
What is a Pokémon Type Weakness Calculator?
A pokemon type weakness calculator is a specialized tool designed for Pokémon trainers to determine the defensive properties of any given Pokémon type combination. In the world of Pokémon, every type has inherent strengths, weaknesses, and immunities against other types. For instance, a Fire-type is weak to Water-type attacks. When a Pokémon has two types (a dual-type), these interactions combine, sometimes creating double weaknesses (4x damage) or double resistances (0.25x damage). Our calculator simplifies this complex matrix, providing an instant and accurate breakdown of a Pokémon’s defensive profile.
Anyone from a casual player on a journey through a new region to a top-tier competitive battler should use a pokemon type weakness calculator. It removes the guesswork and tedious memorization required to master all 18 types and their 324 interactions. A common misconception is that these calculators are only for finding weaknesses; however, understanding your Pokémon’s resistances and immunities is just as critical for strategic switching and walling opponents.
Pokémon Type Weakness Formula and Mathematical Explanation
The core of any pokemon type weakness calculator is the type effectiveness chart. The calculation for a dual-type Pokémon involves multiplying the effectiveness of an incoming attack against each of its types.
The formula is: Final Multiplier = Multiplier vs. Type 1 × Multiplier vs. Type 2
The step-by-step process is as follows:
- Identify the attacking move’s type (e.g., Fire).
- Look up the effectiveness of that attack against the defending Pokémon’s first type (e.g., Fire vs. a Steel-type is 2x).
- Look up the effectiveness against the second type, if it exists (e.g., Fire vs. a Rock-type is 0.5x).
- Multiply these values together. For a Steel/Rock Pokémon, a Fire attack would result in a multiplier of 2 * 0.5 = 1x (neutral damage).
This simple multiplication is what allows for the powerful 4x weaknesses and 0.25x resistances that define many competitive strategies. Check out our pokemon damage calculator for more detailed calculations.
Variables Table
| Variable | Meaning | Unit | Typical Range |
|---|---|---|---|
| Attacking Type | The type of the incoming move. | Type | 1 of 18 Pokémon types |
| Defending Type 1 | The primary type of the defending Pokémon. | Type | 1 of 18 Pokémon types |
| Defending Type 2 | The secondary type of the defending Pokémon. | Type | 1 of 18 Pokémon types or None |
| Multiplier | The damage multiplication factor. | Factor (x) | 0, 0.25, 0.5, 1, 2, 4 |
Practical Examples (Real-World Use Cases)
Example 1: Garchomp (Dragon/Ground)
A trainer is using Garchomp and wants to know its weaknesses. Using the pokemon type weakness calculator, they select Dragon and Ground.
- Inputs: Type 1: Dragon, Type 2: Ground.
- Outputs:
- Weaknesses: Ice (4x), Dragon (2x), Fairy (2x)
- Resistances: Fire (0.5x), Poison (0.5x), Rock (0.5x)
- Immunities: Electric (0x)
- Interpretation: The most critical information is the crippling 4x weakness to Ice-type attacks. A single Ice Beam can easily knock out Garchomp. The immunity to Electric attacks, however, provides a safe opportunity to switch Garchomp into battle.
Example 2: Scizor (Bug/Steel)
Scizor is a popular competitive Pokémon. A player wants to understand its defensive strengths.
- Inputs: Type 1: Bug, Type 2: Steel.
- Outputs:
- Weaknesses: Fire (4x)
- Resistances: Normal (0.5x), Grass (0.25x), Ice (0.5x), Psychic (0.5x), Bug (0.5x), Dragon (0.5x), Steel (0.5x), Fairy (0.5x)
- Immunities: Poison (0x)
- Interpretation: Scizor has only one weakness: a severe 4x vulnerability to Fire. However, it boasts an incredible 8 resistances and 1 immunity, making it a fantastic defensive pivot against many teams. Learning to use a competitive pokemon guide alongside this calculator is key.
How to Use This Pokémon Type Weakness Calculator
Using our pokemon type weakness calculator is straightforward and designed for speed.
- Select Primary Type: Use the first dropdown menu (“Primary Type”) to choose the main type of the Pokémon you are analyzing.
- Select Secondary Type: If the Pokémon is a dual-type, use the second dropdown menu (“Secondary Type”). If it’s a single-type, leave this as “None”.
- Read the Results: The calculator updates in real-time. The “Weaknesses”, “Resistances”, and “Immunities” boxes will automatically populate with the defensive matchups. The bar chart will also update to give you a quick visual summary.
- Decision Making: Use this information to decide if your Pokémon can safely stay in battle, if you should switch out, or what type of Pokémon on your team would be a good counter-switch. Understanding your defensive profile is the first step to victory.
Key Factors That Affect Pokémon Type Weakness Results
While the pokemon type weakness calculator provides the baseline, several in-game mechanics can alter these interactions. Mastering these is what separates good trainers from great ones.
- Abilities: Certain abilities completely change type matchups. Levitate grants immunity to Ground attacks. Thick Fat halves damage from Fire and Ice attacks. Sap Sipper grants an immunity to Grass attacks and boosts Attack. Knowing about best pokemon abilities is a game-changer.
- Held Items: Items like the Air Balloon temporarily grant Ground immunity. Berries, such as the Yache Berry, can halve the damage from one super-effective Ice-type attack.
- Moves with Special Properties: Some moves defy the standard type chart. Freeze-Dry is an Ice-type move that is uniquely super-effective (2x) against Water-types. Thousand Arrows is a Ground-type move that can hit Flying-types.
- Weather and Terrain: Weather conditions like Rain boost Water attacks and weaken Fire attacks. Terrains like Grassy Terrain can weaken Ground-type moves like Earthquake.
- Inverse Battles: A rare battle format where all type matchups are reversed. In an Inverse Battle, a 4x weakness becomes a 0.25x resistance. Our IV calculator can help prepare for any battle format.
- Tera Type (Generation 9): The Terastal phenomenon allows a Pokémon to temporarily change its type to its “Tera Type”. This completely overrides its original defensive typing, making a deep understanding of the pokemon type weakness calculator even more crucial for predicting offensive and defensive plays.
Frequently Asked Questions (FAQ)
1. How is a 4x weakness calculated?
A 4x weakness occurs when a Pokémon’s two types are both weak to the same attacking type. For example, Rock and Ground are both weak to Water. A Rock/Ground Pokémon takes 2x damage from Water (for its Rock type) and another 2x (for its Ground type). The multipliers multiply (2 * 2 = 4), resulting in quadruple damage.
2. What does a 0.25x resistance mean?
This is a double resistance. It happens when both of a Pokémon’s types resist the same attacking type. For instance, Steel and Fairy both resist Bug-type moves (0.5x). A Steel/Fairy Pokémon would take 0.5 * 0.5 = 0.25x damage from a Bug attack.
3. Why is this pokemon type weakness calculator better than a simple chart?
While a chart shows individual matchups, a pokemon type weakness calculator instantly computes the combined effects for dual-types, saving you the mental math and potential errors. It also provides a clear, organized view of all weaknesses, resistances, and immunities in one place.
4. Can a Pokémon be immune to a type it should be weak to?
Yes, due to abilities. For example, Heatran is a Fire/Steel type, which would normally give it a 2x weakness to Ground. However, its common ability Flash Fire (or sometimes Levitate in specific formats) can grant it an immunity to one of its weaknesses, making it much more resilient.
5. Does this calculator account for STAB?
No. This is a defensive calculator. STAB (Same Type Attack Bonus) is an offensive bonus that increases a Pokémon’s outgoing damage if the move’s type matches one of the Pokémon’s types. Our tool focuses on incoming damage.
6. What is the most common 4x weakness?
One of the most common and dangerous 4x weaknesses is the Bug/Grass typing’s double weakness to Fire and Flying. Another is the Rock/Ground typing’s double weakness to Water and Grass.
7. Which type has the most resistances?
The Steel type is known as the best defensive type in the game. Before Generation 6, it had 11 resistances and 1 immunity. It now has 10 resistances and 1 immunity, which is still the highest of any single type.
8. How up-to-date is this pokemon type weakness calculator?
Our calculator uses the latest type chart, which includes the Fairy type and all changes introduced in Pokémon X & Y and subsequent games. It is accurate for all modern Pokémon games, including Scarlet and Violet.
Related Tools and Internal Resources
Expand your competitive knowledge with our other strategic Pokémon tools and guides.
- Damage Calculator: Go beyond type effectiveness and calculate the exact damage output of any move.
- IV Calculator: Determine your Pokémon’s hidden potential by calculating its Individual Values (IVs).
- Competitive Pokémon 101 Guide: A comprehensive introduction to the fundamentals of competitive battling.
- National Pokédex: Browse stats, movesets, and abilities for every Pokémon.
- Understanding Abilities: A deep dive into the most impactful abilities in the game.
- Teambuilder Tool: Plan and analyze your entire team’s defensive synergy and offensive coverage.