Pokemon Type Calculator: Check Type Effectiveness
Select your attacking and defending types to see the resulting type effectiveness and matchup.
What This Tool Does
Choose an attacking type, move category, STAB option, and defending type, with an optional second defending type. The calculator processes the matchup and shows the resulting effectiveness, including weaknesses, resistances, or immunities. You can also reverse the matchup or compare another attack type.
Pokemon Type Calculator
Check how effective one Pokémon attack type is against a single or dual defending type.
Calculate Type Effectiveness
Select the attacking type and defending type, then choose the move category and STAB option when relevant. The calculator shows the matchup multiplier and a defensive effectiveness chart.
Set Up Your Matchup
Move category is shown as matchup context and does not change the type multiplier.
Use the second type for dual-type Pokémon.
Try Another Matchup
Understanding Your Result
The attack is super effective against the selected defending type or types.
The attack is not very effective. Dual types can combine to produce a smaller multiplier.
The selected attack type has no effect on the defending type combination.
Pokemon Type Calculator: Check Type Effectiveness and Weaknesses
The Pokemon Type Calculator helps you understand how an attacking type interacts with a single or dual defending type. It shows the resulting type-effectiveness multiplier and can also provide a defensive effectiveness chart, making it useful for checking weaknesses, resistances, and immunities while playing or studying Pokémon battle mechanics.
Quick Answer
A Pokémon type matchup is represented by a multiplier such as 0×, 0.5×, 1×, 2×, or 4×. A value above 1× means the selected attack type is super effective, a value below 1× means it is not very effective, and 0× means the attack has no effect against the selected defending type. When a Pokémon has two types, the applicable type modifiers are multiplied together. This is why some dual-type Pokémon can have a 4× weakness or a 0.25× result. Bulbapedia's type chart documentation describes this dual-type calculation in detail.
What Does This Pokemon Type Calculator Help You Understand?
The main purpose of the calculator is to answer a direct matchup question: how effective is one attack type against a selected defending type? You can choose one defending type or add a second type for a dual-type Pokémon. The result then shows the combined effectiveness multiplier and a broader defensive chart for the selected matchup.
This makes the tool useful as a pokemon type weakness calculator, a pokemon type effectiveness calculator, and a quick pokemon type matchup calculator without requiring you to work through the type chart manually.
The interface also includes a move-category selection, a STAB option, reverse matchup control, and the ability to compare another attacking type. These controls add matchup context, but the displayed type multiplier remains the central result.
How the Pokemon Type Calculator Works
Start by selecting the Attack Type. Next, choose the defending Pokémon's first type. For a dual-type Pokémon, select the second defending type as well. The calculator then looks up the effectiveness of the attack against each selected defending type and combines those modifiers.
Basic Calculation
For a single-type defender, the result is the attack-type multiplier against that one type.
For a dual-type defender, the result follows the structure: Multiplier against Type 1 × Multiplier against Type 2 = Combined Effectiveness.
The calculator uses the familiar 18 Pokémon types displayed in its selectors. The official Pokémon site explains that Pokémon can have one or two types and that different types have advantages and disadvantages against one another. Pokémon RPGs 101 provides an official introduction to these type relationships.
Single-Type Matchups
A single-type matchup is the simplest case. One attacking type is compared with one defending type. For example, a Fire attack against a Grass-type defender has a 2× type-effectiveness multiplier in the standard chart represented by this calculator.
Dual-Type Matchups
Dual-type matchups are more interesting because both defending types matter. Suppose an attack has a 2× multiplier against the first type and another 2× multiplier against the second type. The combined result is 4×. Likewise, two 0.5× interactions combine to produce 0.25×.
A complete ineffectiveness against either defending type results in 0× because multiplying by zero produces zero. This dual-type behavior is also documented in the Pokémon type chart reference.
Understanding Pokemon Type Effectiveness
| Multiplier | Meaning |
|---|---|
| 4× | Extremely strong super-effective interaction caused by combined dual-type weaknesses. |
| 2× | Super effective against the selected defending type or combination. |
| 1× | Normal type effectiveness. |
| 0.5× | Not very effective. |
| 0.25× | Very low effectiveness created by two resisting defending types. |
| 0× | No effect against the selected defending type combination. |
These multipliers describe type effectiveness. They are not a complete calculation of final battle damage. Actual damage can also depend on other mechanics, including the attacking Pokémon, move power, relevant stats, and game-specific rules.
Examples of Pokemon Type Matchups
Example 1 — Fire vs. Grass
User situation: You want to know whether a Fire-type attack is effective against a Grass-type Pokémon.
Example inputs: Attack Type: Fire; Defending Type: Grass.
Result: 2×.
Interpretation: The Fire attack is super effective against the selected Grass type.
Example 2 — Electric vs. Ground
User situation: You are checking whether an Electric-type attack can affect a Ground-type defender.
Example inputs: Attack Type: Electric; Defending Type: Ground.
Result: 0×.
Interpretation: The selected Electric attack has no effect against the Ground type under the chart used by the calculator.
Example 3 — Rock vs. Fire/Flying
User situation: You are checking a dual-type defender with Fire and Flying types.
Example inputs: Attack Type: Rock; Defending Type 1: Fire; Defending Type 2: Flying.
Result: 4×.
Interpretation: Rock is effective against both defending types, so the two 2× interactions combine into a 4× result.
Example 4 — A Resisted Dual-Type Combination
User situation: You want to see how two resistances combine.
Example inputs: Select an attack type that has a 0.5× interaction with both defending types.
Result: 0.25×.
Interpretation: Each defending type reduces effectiveness, and multiplying the two modifiers produces a quarter-effectiveness result.
What Is a Pokemon Dual Type Calculator Used For?
A pokemon dual type calculator is particularly useful when a Pokémon has two distinct types. Instead of checking two separate rows in a type chart and manually combining them, the calculator performs the combination for you.
This is useful when checking a Pokémon's weaknesses and resistances because dual types can produce results that are very different from either type viewed alone. A matchup may become especially strong, especially weak, neutral, or completely ineffective depending on the interaction with both defending types.
The order of the two defending types does not change the mathematical result. What matters is the pair of types being evaluated and the applicable multiplier against each one. Bulbapedia describes the same multiplication principle for dual-type Pokémon.
What Is STAB and How Does It Relate to Type Effectiveness?
STAB stands for Same-Type Attack Bonus. It refers to the additional benefit associated with using an attack that matches the Pokémon's own type. Pokémon's official game guidance discusses same-type attack bonuses as an additional battle modifier rather than as part of the basic type matchup itself.
The calculator includes an STAB option so you can view a STAB-adjusted value alongside the matchup result. However, the current interface does not ask you to enter the attacking Pokémon's own type, so the STAB control is a simplified calculator option rather than a complete battle-damage simulation.
This distinction matters because type effectiveness and final damage are not the same calculation. For a full damage calculation involving stats and other battle variables, use the Pokémon Damage Calculator.
How Should You Use the Type Chart Calculator?
You can use the calculator as a quick reference whenever you need to understand an unfamiliar matchup. Select the attacking type, choose the defending type, and review the multiplier. When the defender has two types, add the second type and let the calculator combine both interactions.
The defensive effectiveness chart can then help you explore other attack types against the same defending combination. This is useful when you are comparing possible attacking options rather than checking only one move type.
The tool can therefore be used as a compact pokemon type coverage calculator for exploring attack-type effectiveness, but it should not be interpreted as a full team-coverage analyzer. A team calculator would require a different interface that accepts multiple Pokémon and evaluates the team collectively.
Can This Calculator Analyze an Entire Pokémon Team?
Not currently. The calculator is designed for attacking and defending type matchups, including single and dual defending types. It does not accept a complete list of Pokémon and produce a team-wide offensive or defensive coverage report.
This distinction is important because a pokemon team type calculator represents a broader task than a single type matchup. Team analysis requires evaluating several Pokémon and their combined strengths, weaknesses, and available attack types.
Why Can Type Matchups Change Between Pokémon Games?
Pokémon type mechanics have not been identical across every generation and game. The type chart has changed historically, including changes associated with the introduction of new types and game-specific mechanics. Bulbapedia's type chart documentation records these historical differences.
The current SooperTools calculator uses the 18 standard types shown in its interface and does not include a generation selector. For that reason, treat the displayed results as a general type-effectiveness reference rather than a universal simulation of every Pokémon title, spin-off, or battle format.
Common Questions
What is a Pokémon type weakness?
A weakness occurs when an attacking type has greater-than-normal effectiveness against a defending type, such as a 2× interaction. Dual types can produce even larger combined weaknesses.
What is a Pokémon type resistance?
A resistance occurs when an attack type has reduced effectiveness, commonly represented by 0.5× or 0.25× in a dual-type matchup.
Can a dual-type Pokémon have a 4× weakness?
Yes. When the same attacking type is 2× effective against both defending types, multiplying those two modifiers produces a 4× result.
Can a Pokémon be immune to an attack type?
Yes. Some type interactions produce 0× effectiveness, meaning the selected attack type has no effect against that defending type under the applicable chart.
Does 2× effectiveness mean exactly double the final damage?
No. The 2× value is the type-effectiveness modifier. Final battle damage can involve additional mechanics and variables beyond the type multiplier.
What is the difference between a type matchup and type coverage?
A matchup evaluates an attack type against one defending type combination. Coverage is broader and usually refers to how multiple attack types collectively handle different opposing types or Pokémon.
Frequently Asked Questions
The calculator looks up the effectiveness of the selected attack type against the defending type or types and combines the applicable modifiers for a dual-type matchup.
They represent different levels of type effectiveness. Zero means no effect, values below 1× indicate reduced effectiveness, 1× is normal, and values above 1× indicate increased effectiveness.
The multiplier against the first defending type is multiplied by the multiplier against the second defending type. This can create results such as 4×, 0.25×, or 0×.
Super effective means the selected attack type has greater-than-normal effectiveness against the defending type, represented by a multiplier above 1×.
STAB means Same-Type Attack Bonus. It is a separate battle modifier associated with using an attack that matches the attacking Pokémon's type. The calculator includes an STAB control but does not model every variable of a complete battle-damage calculation.
No. Its primary result is type effectiveness. It does not replace a full damage simulator that accounts for Pokémon stats, move power, battle conditions, and other damage modifiers.
The current tool does not perform full team analysis. It evaluates attack and defense type combinations rather than accepting a complete team and calculating aggregate coverage.
Yes. Type charts and battle mechanics have changed across generations and games. This calculator provides a general 18-type matchup reference and does not include a generation-specific selector.
Limitations of the Pokemon Type Calculator
The calculator is intentionally focused on type relationships. It does not identify a specific Pokémon from its name, calculate complete battle damage, evaluate an entire team, or simulate every game-specific battle mechanic.
The move-category control provides Physical or Special context, but it does not calculate Attack, Special Attack, Defense, Special Defense, move power, critical hits, weather, items, abilities, or other battle variables. Likewise, the STAB control is not a substitute for a complete damage model because the current interface does not collect every value needed for such a calculation.
The type chart itself can also vary between games or generations. Use the calculator as a general matchup reference and check the rules of the specific Pokémon title or battle format when game-specific accuracy is important.
Related SooperTools
For full damage analysis after checking type effectiveness, use the Pokémon Damage Calculator. It serves a different purpose by examining actual damage-related inputs and battle calculations.
For Pokémon fusion scenarios, the Pokémon Infinite Fusion Calculator can be used separately to explore fusion-related outcomes, including type combinations and related attributes.
References
Pokémon RPGs 101 — Official Pokémon guidance on Pokémon types, type advantages, and battle basics.
Bulbapedia Type/Type Chart — Reference documentation for type effectiveness, dual-type multiplier behavior, and historical chart differences.
Written by: SooperTools Editorial Team
Page updated: September 27, 2026
This page explains the functionality and assumptions used by the current SooperTools Pokemon Type Calculator.