Gen 6 Catch Rate Calculator






Gen 6 Catch Rate Calculator | Pokémon X, Y, ORAS Capture Rates


Gen 6 Catch Rate Calculator

Precision Probability Analysis for Pokémon X, Y, Omega Ruby & Alpha Sapphire


Standard value from 1 to 255 (e.g., 3 for Legendaries, 255 for Magikarp).
Please enter a value between 1 and 255.


The target Pokémon’s total HP at its current level.
Max HP must be greater than 0.


The lower the HP, the higher the success rate.
Current HP cannot exceed Max HP.


Select the Poké Ball being used. Multipliers are specific to Gen 6.


Sleep and Freeze provide the highest catch bonuses.


O-Powers are exclusive to Gen 6 mechanics.


Estimated Catch Chance
0.00%
Modified Rate (a): 0

Formulaic base value for capture checks.
Shake Probability: 0

Chance of passing a single shake check.
Avg. Balls Needed: 0

Expected number of throws for success.

Catch Probability vs. HP Percentage

100% 0% 100% HP 1% HP

Visualization of how reducing HP increases the Gen 6 catch rate calculator efficiency.

What is the Gen 6 Catch Rate Calculator?

The gen 6 catch rate calculator is a specialized tool designed to model the mathematical mechanics of capturing Pokémon in the sixth generation of games, specifically Pokémon X, Pokémon Y, Pokémon Omega Ruby, and Pokémon Alpha Sapphire. Unlike previous generations, Gen 6 introduced specific mechanics like O-Powers and adjusted multipliers for various Poké Balls that this gen 6 catch rate calculator accounts for.

Whether you are hunting legendary Pokémon like Xerneas, Yveltal, or the elusive Rayquaza, or simply trying to complete your Pokédex, using a gen 6 catch rate calculator helps you determine if you should spend another turn lowering HP or if you should throw a ball immediately. This tool is essential for trainers who want to optimize their resources and avoid the frustration of failed captures.

Common misconceptions about the gen 6 catch rate calculator include the belief that pressing “Down + B” increases the catch rate. In reality, the gen 6 catch rate calculator follows a strict algorithmic process defined by the game’s code, involving HP ratios, status conditions, and ball modifiers.

Gen 6 Catch Rate Calculator Formula and Mathematical Explanation

The math behind the gen 6 catch rate calculator involves two distinct steps: calculating the modified catch rate (a) and then calculating the shake probability (b).

Variables used in the gen 6 catch rate calculator formula
Variable Meaning Unit Typical Range
HP Max Total Hit Points Points 10 – 714
HP Current Remaining Hit Points Points 1 – HP Max
Base Rate Species Constant Integer 3 – 255
Ball Poké Ball Modifier Multiplier 1.0x – 8.0x
Status Affliction Modifier Multiplier 1.0x – 2.5x

Step 1: The Modified Catch Rate (a)

The formula for a is:
a = floor(((3 * HP_max - 2 * HP_curr) * Rate * Ball) / (3 * HP_max)) * Status * O-Power

If a is 255 or higher, the Pokémon is caught automatically. Otherwise, the game proceeds to the shake checks.

Step 2: The Shake Probability (b)

The game calculates a value b which represents the threshold for each of the four shakes:
b = floor(65535 * (a / 255)^(1/4))

The gen 6 catch rate calculator then computes the final probability as (b / 65536)^4.

Practical Examples (Real-World Use Cases)

Example 1: Catching Mewtwo in Pokémon X/Y
Using the gen 6 catch rate calculator, let’s assume Mewtwo has a Base Rate of 3. You have it at 1 HP (Max HP 300) and it is asleep (2.5x bonus). You use an Ultra Ball (2x).
– Input: Base 3, HP 1/300, Ultra Ball, Sleep.
– Result: The gen 6 catch rate calculator shows a ~9.5% catch chance per ball. This confirms that even with optimal conditions, legendary captures are difficult.

Example 2: Catching a Magikarp for Breeding
A Magikarp has a Base Rate of 255. Using a standard Poké Ball (1x) at full HP (20/20) with no status.
– Input: Base 255, HP 20/20, Poké Ball, None.
– Result: The gen 6 catch rate calculator returns 33.3%. This explains why even “easy” Pokémon can sometimes break out of a ball at full health.

How to Use This Gen 6 Catch Rate Calculator

  1. Enter Species Data: Look up the base catch rate of the Pokémon and enter it into the gen 6 catch rate calculator.
  2. Define HP Stats: Input the Max HP and current HP. Using moves like False Swipe ensures the current HP is 1, maximizing the gen 6 catch rate calculator output.
  3. Select Modifiers: Choose your Poké Ball type and any status conditions (Sleep and Freeze are the best).
  4. Apply O-Powers: If you are using Catching Power, select the level to see how the gen 6 catch rate calculator adjusts the probability.
  5. Analyze Results: View the percentage and the average number of balls required to secure the catch.

Key Factors That Affect Gen 6 Catch Rate Calculator Results

  • Remaining HP: This is the most controllable factor in the gen 6 catch rate calculator. Reducing HP to 1 roughly triples your chances compared to full HP.
  • Status Effects: Non-volatile status effects are massive. Sleep and Freeze provide a 2.5x multiplier in the gen 6 catch rate calculator, while Paralysis, Burn, and Poison provide 1.5x.
  • Ball Multipliers: Different balls have different logic. For example, a Net Ball is extremely effective (3.5x) against Water/Bug types in the gen 6 catch rate calculator.
  • O-Powers: The unique Gen 6 Catching Power can provide up to a 1.3x boost, which can be the difference between a caught legendary and a struggled-to-death one.
  • Base Catch Rate: This is a fixed value per species. Knowing this helps you decide if you need to use an Ultra Ball or if a Poké Ball will suffice.
  • Critical Captures: While rare, the gen 6 catch rate calculator notes that your Pokédex completion increases the chance of a “Critical Capture,” which only requires one shake check.

Frequently Asked Questions (FAQ)

Does the Gen 6 catch rate calculator account for the Master Ball?
Yes, the Master Ball has a multiplier of 255, which mathematically guarantees a capture (100%) in the gen 6 catch rate calculator.

Why does Sleep give more bonus than Paralysis?
In the game’s code and our gen 6 catch rate calculator, Sleep/Freeze are weighted at 2.5x, whereas Paralysis is 1.5x, reflecting the difficulty of inflicting those statuses.

What is the best Poké Ball for Legendaries in Gen 6?
According to the gen 6 catch rate calculator, the Timer Ball (after 10 turns) or a Dusk Ball (at night/in caves) provides the highest consistent multipliers (4x and 3.5x).

Does “Catching Power S” exist in Gen 6?
Yes, Catching Power S is a special O-Power that provides the same 1.3x multiplier as Lv. 3 but for a shorter duration, effectively modeled in our gen 6 catch rate calculator.

Can I catch a Pokémon with 0% chance?
No, the gen 6 catch rate calculator will always show at least a tiny fraction of a percent unless the Pokémon is uncatchable (like certain scripted events).

Does the level of my Pokémon affect the gen 6 catch rate calculator?
Directly, no. However, higher levels make it easier to use False Swipe or survive long battles while using the gen 6 catch rate calculator‘s logic.

How does the Repeat Ball work?
The gen 6 catch rate calculator applies a 3x multiplier if the species is already registered as caught in your Pokédex.

What is the “a” value in the calculator?
The ‘a’ value is the “modified catch rate.” It is the intermediate number the gen 6 catch rate calculator determines before checking how many times the ball shakes.

Related Tools and Internal Resources

© 2023 PokeCalc Tools. All Pokémon names and images are trademarks of Nintendo/Game Freak. This gen 6 catch rate calculator is for educational purposes.


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