Defensive Matchup (Taking Damage)
Takes 4x Damage
Takes 2x Damage
Takes 1x Damage
Takes 0.5x Damage
Takes 0.25x Damage
Takes 0x Damage
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Pokemon Type Calculator
Analyze defensive and offensive matchups for single- or dual-type Pokemon using full 18-type chart multipliers.
Offensive Matchup (Dealing Damage)
Super Effective (2x)
Not Very Effective (0.5x)
No Effect (0x)
The Ultimate Pokémon Type Calculator: Master Every Matchup
Whether you are drafting a competitive VGC team, attempting a grueling hardcore Nuzlocke run, or simply trying to beat the Elite Four in your casual playthrough, knowledge is your greatest weapon. With 18 distinct elemental types in the Pokémon universe, there are 324 possible dual-type combinations. Memorizing how every single one of those combinations reacts to incoming attacks is nearly impossible.
Our comprehensive Pokémon Type Calculator acts as your ultimate competitive Pokédex. By selecting your Pokémon's primary and secondary typing, this tool instantly cross-references the official type chart to calculate the exact damage multipliers. You will instantly see your devastating 4x weaknesses, your crucial 0.25x resistances, and your game-winning immunities, allowing you to switch in safely and secure the victory.
How Dual-Type Math Works: The Multiplier Rules
Single-type Pokémon are easy to calculate. If a Fire-type takes a Water attack, it takes 2x (double) damage. However, when a Pokémon has two types, the game engine multiplies the defensive properties of both types together to determine the final damage output.
The Mathematical Combinations:
- Neutralizing a Weakness (2x × 0.5x = 1x): If Type A is weak to Fire, but Type B resists Fire, they cancel each other out. The Pokémon takes normal, neutral damage.
- Double Weakness (2x × 2x = 4x): If both Type A and Type B are weak to an attack, the Pokémon takes massive quadruple damage. (e.g., A Bug/Flying type taking a Rock-type attack).
- Double Resistance (0.5x × 0.5x = 0.25x): If both types resist the incoming attack, the Pokémon only takes one-quarter of the normal damage, creating an incredible defensive wall.
- The Trump Card: Immunity (0x × Anything = 0x): If even one of a Pokémon's types is immune to an attack, the entire Pokémon takes absolutely zero damage, regardless of its second type. (e.g., A Flying/Dragon type takes 0 damage from Ground attacks).
Competitive Use Case: The Water/Ground Phenomenon
To understand the power of dual-typing, look at classic Pokémon like Swampert, Quagsire, or Gastrodon. They are all Water / Ground dual-types. This is widely considered one of the best defensive typings in the entire franchise. Here is exactly why:
- The Electric Immunity: Normally, Water-types are terrified of Electric attacks. However, because Ground is entirely immune to Electric (0x), the Water/Ground Pokémon takes 0 damage from a Thunderbolt.
- The Rock Resistance: Ground-types are normally weak to Water and Ice. But the Water-typing neutralizes the Water and Ice weaknesses (1x).
- The Fatal Flaw: Water is weak to Grass (2x). Ground is also weak to Grass (2x). This creates a massive 4x Weakness to Grass-type attacks.
The Strategy: A competitive player using Swampert knows they can safely switch into Electric, Rock, Poison, and Steel attacks, but they must immediately switch out if the opponent sends in a Grass-type.
Game-Changing Type Interactions
Over the generations, Game Freak has rebalanced the type chart to prevent certain elements from becoming too powerful. Here are the most vital type interactions you must memorize for modern competitive play.
| Defending Type | Key Interaction | Competitive Impact |
|---|---|---|
| Steel | Resists 10 different types. Immune to Poison. | The ultimate defensive typing. Pairing Steel with a flying or levitate ability removes its Ground weakness, creating an unbreakable wall. |
| Fairy | Immune to Dragon. Super Effective against Dark/Fighting. | Introduced in Gen 6 to balance the game, Fairy-types completely shut down powerful Dragon sweepers, forcing teams to run Poison or Steel coverage. |
| Ghost | Immune to Normal and Fighting. | Excellent for "spinblocking" (preventing Rapid Spin) and forcing opponents to rethink their physical attackers. |
| Ice | Only resists itself (Ice). Weak to Fire, Fighting, Rock, Steel. | A notoriously terrible defensive typing, but an incredibly valuable offensive coverage type for taking out Dragons and Flyers. |
Frequently Asked Questions
What does STAB mean?
STAB stands for Same Type Attack Bonus. If a Fire-type Pokémon uses a Fire-type move (like Flamethrower), that move gets a 1.5x damage boost. If a Normal-type Pokémon uses Flamethrower, it only deals the standard 1.0x damage. Dual-type Pokémon are excellent because they get STAB on two entirely different elemental move pools.
How does Terastallization affect weaknesses?
Introduced in Pokémon Scarlet and Violet (Gen 9), the Terastal phenomenon completely overrides a Pokémon's base typing. When a Pokémon Terastallizes, it becomes a pure, single-type Pokémon matching its Tera Type. Its defensive weaknesses are completely recalculated to match this new single type, allowing players to bait out super-effective attacks and turn them into resistances.
Do abilities change the type chart?
Yes! While our calculator shows the base mathematical typing, certain abilities grant artificial immunities. Levitate grants an immunity to Ground. Volt Absorb grants an immunity to Electric. Flash Fire grants an immunity to Fire. Always factor in your Pokémon's ability when calculating your defensive checks.
What is the best dual typing in the game?
While highly debated, Steel / Fairy (like Zacian or Tinkaton) is widely considered one of the best defensive typings ever created. It has two immunities (Poison, Dragon), resists 9 different types, and only has two weaknesses (Ground, Fire).
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