Pokémon Type Effectiveness Calculator

Analyze attack effectiveness against any Pokémon type combination.

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Select types to see the result.

What is the Pokémon Type Effectiveness Calculator?

The Pokémon Type Effectiveness Calculator is a specialized tool designed for Pokémon trainers to determine the damage multiplier of an attack based on type matchups. In the world of Pokémon, every type has a set of strengths, weaknesses, and immunities against other types. This calculator simplifies the complex interactions that occur when a Pokémon has two types, instantly providing the resulting damage multiplier. Understanding these matchups is fundamental to winning battles.

Pokémon Type Effectiveness Formula

The calculation for type effectiveness against a dual-type Pokémon is a straightforward multiplication of the individual multipliers.

Final Multiplier = (Attacking Type vs Defending Type 1) × (Attacking Type vs Defending Type 2)

The result of this formula tells you if an attack will be super effective (2x or 4x damage), normal damage (1x), not very effective (0.5x or 0.25x damage), or have no effect (0x damage).

Variables Explained

Variable	Meaning	Unit	Typical Range
Multiplier 1	Effectiveness against the defending Pokémon’s first type.	Multiplier (x)	0, 0.5, 1, 2
Multiplier 2	Effectiveness against the defending Pokémon’s second type.	Multiplier (x)	0, 0.5, 1, 2
Final Multiplier	The combined damage multiplier for the attack.	Multiplier (x)	0, 0.25, 0.5, 1, 2, 4

For more detailed strategies, you might want to consult a {related_keywords} guide.

Practical Examples

Example 1: Quadruple (4x) Weakness

• Scenario: An Electric-type attack (like Thunderbolt) is used against Gyarados, a Water/Flying type Pokémon.
• Inputs: Attacking Type: Electric, Defending Type 1: Water, Defending Type 2: Flying.
• Calculation: Electric is super effective against Water (2x) AND super effective against Flying (2x). The formula is 2 × 2 = 4.
• Result: The attack deals 4x normal damage, a massive hit that can often result in a one-hit KO.

Example 2: Immunity

• Scenario: A Ground-type attack (like Earthquake) is used against Charizard, a Fire/Flying type Pokémon.
• Inputs: Attacking Type: Ground, Defending Type 1: Fire, Defending Type 2: Flying.
• Calculation: Ground is super effective against Fire (2x), but it has no effect on Flying-types (0x). The formula is 2 × 0 = 0.
• Result: The attack deals 0x damage. Charizard is completely immune.

Understanding these interactions is key, just like when using an {related_keywords} to plan your team.

How to Use This Pokémon Type Effectiveness Calculator

1. Select Attacking Type: Use the first dropdown menu to choose the type of the move being used.
2. Select Defending Type 1: Choose the primary type of the Pokémon that is being attacked.
3. Select Defending Type 2: If the defending Pokémon is a dual-type, select its second type. If it only has one type, leave this as “None”.
4. Interpret the Results: The calculator will automatically display the final damage multiplier and a description (e.g., “Super effective!”). It also shows the individual multipliers for each defending type.

Key Factors That Affect Type Matchups

• Abilities: Certain abilities can alter type effectiveness. For example, Levitate grants immunity to Ground-type moves.
• Held Items: Items like Air Balloon can temporarily grant Ground immunity.
• Inverse Battles: A rare battle format where type matchups are completely reversed (weaknesses become resistances, etc.).
• Terastallization: A mechanic in Pokémon Scarlet and Violet that changes a Pokémon’s type mid-battle, completely altering its weaknesses.
• Specific Moves: Some moves defy normal type matchups. For instance, Freeze-Dry is an Ice-type move that is uniquely super effective against Water-types.
• Weather and Terrain: Conditions like Sun, Rain, or Electric Terrain can boost the power of certain move types. A {related_keywords} can help track these complex states.

Frequently Asked Questions (FAQ)

What does 4x effectiveness mean?

It means a Pokémon is doubly weak to an attack type. This happens when both of its types are weak to the same attacking type, resulting in quadruple damage.

How is damage calculated if one type is weak and the other resists?

The multipliers are combined. For example, a Grass attack against a Water/Dragon type would be super effective against Water (2x) but not very effective against Dragon (0.5x). The final multiplier is 2 × 0.5 = 1x (normal damage).

What does STAB mean and does this calculator include it?

STAB stands for “Same Type Attack Bonus,” which provides a 1.5x damage boost if a Pokémon uses a move that matches its own type. This calculator focuses only on the base type effectiveness multiplier, not STAB or other damage modifiers. For full damage scenarios, use a dedicated {related_keywords}.

Does this calculator work for all Pokémon generations?

This calculator uses the modern type chart, which has been standard since the introduction of the Fairy type in Generation VI (Pokémon X and Y).

Why is my Ground move not hitting a Flying-type?

Flying-type Pokémon are immune to Ground-type moves, meaning they take 0x damage from them.

How do I handle a single-type Pokémon in the calculator?

Simply select “None” in the “Defending Pokémon Type 2” dropdown. The calculation will then only use the first type.

Where can I find a good team builder tool?

You can find team building resources by searching for a {related_keywords} to complement this calculator.

How does Terastallization affect this?

When a Pokémon terastallizes, it changes its type to its Tera Type. You should use its Tera Type as its only defending type in the calculator for the duration of the effect.

Related Tools and Resources

Once you’ve mastered type effectiveness, enhance your competitive edge with these tools:

• {related_keywords}: Optimize your Pokémon’s stats for competitive battling.