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Pokémon STAB Calculator (Same Type Attack Bonus)

Calculate the damage boost granted when a Pokémon uses a move matching its type. Includes modifiers for Adaptability, Terastallization, and Tera Stellar type.

Interpreting Your Result

Use the STAB-boosted power to compare moves of different types. A non-STAB move needs to be much stronger (BP > 1.5x of the STAB move) to be more effective than a STAB attack.

✓ Do's

  • •Prioritize moves that provide STAB for your primary offensive threats.
  • •Consider the "Adaptability" ability if you want to build a powerhouse attacker.
  • •Use Terastallization to either double down on an existing STAB or gain a new one for coverage.
  • •Remember that moves like "Tera Blast" always gain STAB when you are Terastallized.

✗ Don'ts

  • •Don't assume a high-power coverage move is always better than a lower-power STAB move.
  • •Don't forget that losing your type (e.g., a Flying type using Roost) removes your STAB for that turn.
  • •Don't ignore the synergy between STAB and items like Choice Band or Life Orb.
  • •Don't expect STAB to apply to status moves like Will-O-Wisp.

How It Works

The Same Type Attack Bonus (STAB) is one of the most fundamental mechanics in Pokémon combat. It rewards trainers for utilizing moves that align with their Pokémon's inherent types. Historically a 1.5x multiplier, STAB has evolved over generations to include complex interactions with abilities like Adaptability and the Generation 9 Terastallization mechanic. This calculator helps you determine the exact power of your moves after all STAB-related multipliers are applied, allowing you to maximize your offensive potential.

Understanding the Inputs

Enter the Base Power of the move and select the Pokémon's type, the move's type, and any relevant abilities or Tera types. The calculator will provide the final adjusted power.

Formula Used

Effective Power = Base Power * STAB Multiplier. The STAB Multiplier is usually 1.5x. With Adaptability, it becomes 2.0x. With Terastallization, it can reach 2.0x (if types match) or remain 1.5x (if types differ).

Real Calculation Examples

  • 1A Fire-type Charizard using Flamethrower (90 BP) gets a 1.5x boost, resulting in 135 Effective Power.
  • 2A Porygon-Z with Adaptability using Tri Attack (80 BP) gets a 2.0x boost, resulting in 160 Effective Power.
  • 3A Water-type Pokémon that Terastallizes into a Water-type and uses Surf gets a 2.0x boost.

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The Comprehensive Guide

Pokémon STAB Calculator: Understanding the Same Type Attack Bonus

In the tactical depths of Pokémon battling, efficiency is king. The most fundamental way to increase your efficiency is through STAB (Same Type Attack Bonus). Our Pokémon STAB Calculator is the ultimate tool for trainers to visualize how matching types can turn a mediocre move into a game-ending strike.

What is STAB in Pokémon?

STAB is an offensive mechanic that rewards Pokémon for using moves that match their own biological type. Since the very first games, Red and Blue, if a Fire-type Pokémon like Charizard uses a Fire-type move like Flamethrower, the move deals increased damage compared to a non-Fire type using the same move.

The Magic Multiplier: 1.5x

By default, STAB provides a 1.5x multiplier to the damage of an attack. This 50% increase is often the difference between leaving an opponent with a sliver of health and securing a One-Hit Knockout (OHKO). For example, a 100 Base Power move effectively becomes 150 Base Power simply because of the trainer's choice of Pokémon.

The Evolution of STAB: Adaptability and Beyond

As the Pokémon series progressed, new abilities and mechanics were introduced to enhance or alter the STAB system. Understanding these layers is key to modern competitive mastery.

1. Adaptability

Introduced in Generation 4, the ability Adaptability is a specialized trait found on Pokémon like Porygon-Z, Lucario (Mega), and Crawdaunt. This ability upgrades the standard 1.5x STAB multiplier to a 2.0x multiplier. This makes these Pokémon exceptionally dangerous with their primary types, effectively doubling their base damage before any other modifiers are applied.

2. Terastallization: The Gen 9 Game Changer

Generation 9 introduced the Terastallization mechanic (Tera), which adds two major layers to the STAB formula:

  • Same-Type Tera: If a Pokémon Terastallizes into a type it already possesses (e.g., a Fire-type Charizard becoming Fire Tera), its STAB multiplier for that type increases from 1.5x to 2.0x. This is similar to a temporary Adaptability boost.
  • New-Type Tera: If a Pokémon Terastallizes into a new type (e.g., a Water-type Gyarados becoming Flying Tera), it keeps its original STABs (at 1.5x) and gains a 1.5x STAB for its new Tera type. This allows for incredible offensive diversity.
  • Tera Stellar Type: The Stellar type is unique; it provides a 1.2x boost to all moves (once per type per battle in raids, or once per type total in standard play) and maintains existing STAB bonuses.

The Math of STAB: Why It Matters

The damage formula in Pokémon is multiplicative. This means that STAB doesn't just add damage; it multiplies everything else you've built. If you have a Life Orb (1.3x) and a STAB boost (1.5x), you aren't getting a 1.8x boost—you are getting a 1.95x boost (1.3 * 1.5).

Comparing STAB vs. Coverage

A common mistake for new players is choosing a move like Thunderbolt (90 BP) on a Fire-type for coverage over a STAB move like Flamethrower (90 BP). After STAB, Flamethrower hits for 135 BP. For Thunderbolt to be better, it must be "Super Effective" (2x), while the STAB move is "Neutral." If both are neutral, the STAB move always wins.

Fixed Damage Moves and Exceptions

It is important to note that STAB does not apply to every move. The primary exceptions include:

  • Fixed Damage Moves: Dragon Rage (always 40 HP), Sonic Boom (always 20 HP).
  • Level-Based Damage: Night Shade, Seismic Toss.
  • Percent-Based Damage: Super Fang, Nature's Madness.
  • Status Moves: Moves that do not deal direct damage (e.g., Thunder Wave, Toxic) never receive a STAB bonus.

Strategizing with the STAB Calculator

When building a team, you should use our Pokémon STAB Calculator to check your "Offensive Pressure." A team with high STAB variety is harder to switch into, while a team with "Adaptability" or "Tera-boosted" STAB moves is designed to break through the bulkiest walls in the game.

Dual-Type Considerations

Dual-type Pokémon (like Water/Flying Gyarados) receive the 1.5x bonus for both Water and Flying moves. This is why dual-types are often preferred in competitive play; they have a wider range of high-damage options without needing items or abilities.

Conclusion: Harness the Power of Type Synergy

The Same Type Attack Bonus is a gift to Every trainer. By understanding whether you are hitting for 1.5x or 2.0x, you can plan your turns with mathematical precision. Use the Pokémon STAB Calculator to optimize your move-sets and ensure that every click in battle is as efficient as possible.

Frequently Asked Questions

Usage of This Calculator

Who Should Use This?

Trainers designing move-sets, competitive players optimizing damage outputs, and anyone looking to understand the mechanics of the Tera phenomenon.

Limitations

This calculator assumes standard core-series Battle rules. Certain spin-off games treat STAB multipliers differently (e.g., 1.25x in Pokémon GO).

Real-World Examples

The Adaptability Sweep

Scenario: A Crawdaunt with Adaptability uses Crabhammer (100 BP).

Outcome: The STAB boost makes it 200 BP before even factoring in Attack stats, allowing it to punch through even resistant targets.

Tera Water Strategy

Scenario: A Palafin-Hero Terastallizes into Water and uses Jet Punch in the Rain.

Outcome: The combination of 2.0x Tera STAB and 1.5x Rain boost turns a priority move into a nuclear option.

Summary

The Pokémon STAB Calculator is your roadmap to maximizing move efficiency. By harnessing the power of Same Type Attack Bonuses, you can ensure every attack hits with maximum impact.