Gen 6 Catch Rate Calculator

Accurately predict your Pokémon catch success in X/Y, Omega Ruby, and Alpha Sapphire.

Gen 6 Catch Rate Calculator

Gen 6 Catch Rate Factors Table

Common Ball and Status Multipliers in Gen 6

Factor Type	Item/Condition	Multiplier	Notes
Ball	Poké Ball	1x	Standard ball.
Ball	Great Ball	1.5x	Improved catch rate.
Ball	Ultra Ball	2x	Significantly improved catch rate.
Ball	Dusk Ball	3.5x	Effective at night or in caves.
Ball	Quick Ball	5x	Only on the first turn of battle.
Ball	Net Ball	3x	Effective on Water- and Bug-type Pokémon.
Ball	Master Ball	255x	Guaranteed catch.
Status	None	1x	No status condition applied.
Status	Sleep	2x	Most effective status for catching.
Status	Freeze	2x	Equally effective as Sleep, but rare to inflict.
Status	Paralysis	1.5x	Moderately effective.
Status	Poison	1.5x	Moderately effective, but damages Pokémon.
Status	Burn	1.5x	Moderately effective, but damages Pokémon.
O-Power	Catching Power Lv. 1	1.5x	Boosts catch rate.
O-Power	Catching Power Lv. 2	2x	Stronger boost.
O-Power	Catching Power Lv. 3	2.5x	Highest boost.

Catch Rate Probability Chart

What is a Gen 6 Catch Rate Calculator?

A Gen 6 Catch Rate Calculator is an essential tool for Pokémon trainers playing Pokémon X, Y, Omega Ruby, or Alpha Sapphire. It allows you to precisely determine the probability of successfully capturing a wild Pokémon based on various in-game factors. Instead of relying on guesswork, this calculator provides a data-driven estimate, helping you make informed decisions about which Poké Ball to use, whether to inflict a status condition, or if lowering the Pokémon’s HP further is necessary.

Who should use it? Any dedicated Pokémon player looking to optimize their catching strategy, especially for rare, legendary, or shiny Pokémon, will find a Gen 6 Catch Rate Calculator invaluable. Speedrunners, competitive players, and completionists can all benefit from understanding the underlying mechanics.

Common misconceptions: Many players believe that certain actions (like pressing A+B) increase catch rates, but these are myths. The actual catch rate is determined by a specific mathematical formula. Another misconception is that critical captures are part of the main catch rate calculation; while they increase your chances, they are a separate roll that occurs after the primary catch attempt.

Gen 6 Catch Rate Calculator Formula and Mathematical Explanation

The Gen 6 catch rate formula is a multi-step process that culminates in a probability of capture. It involves calculating two key intermediate values, ‘A’ and ‘B’, which then determine the likelihood of passing four “shake checks.”

Step-by-step Derivation:

1. Calculate the initial ‘a’ value:

   a_initial = floor((((3 * Max HP - 2 * Current HP) * Base Catch Rate * Ball Multiplier) / (3 * Max HP)) * Status Multiplier)

   This formula can be simplified by using the current HP as a percentage of Max HP (hp_ratio = Current HP / Max HP):

   a_initial = floor(((3 - 2 * hp_ratio) / 3) * Base Catch Rate * Ball Multiplier * Status Multiplier)

   This value is then capped at 255: a_capped_1 = min(255, a_initial)

2. Apply Catching Power O-Power:

   If Catching Power O-Power is active, the capped ‘a’ value is further multiplied:

   a_o_power = floor(a_capped_1 * O-Power Multiplier)

   This new value is again capped at 255 to get the final ‘A’ value:

   A = min(255, a_o_power)

   If A is 0, the Pokémon cannot be caught (e.g., if the base catch rate is 0, which doesn’t happen for wild Pokémon).

3. Calculate the ‘B’ value for shake checks:

   The ‘A’ value is then used to determine ‘B’, which is the threshold for each of the four shake checks. This formula is specific to Gen 5 and 6:

   B = floor(1048560 / sqrt(sqrt(16711680 / A)))

   If A is 0, B is 0. If A is 255, B is 65535.

4. Determine the final Catch Probability:

   For a successful catch, four independent “shake checks” must pass. Each check involves generating a random number between 0 and 65535. If the random number is less than ‘B’, the check passes.

   Probability of passing one shake check = B / 65536

   Total Catch Probability = (B / 65536)^4

Variable Explanations:

Variables Used in the Gen 6 Catch Rate Formula

Variable	Meaning	Unit	Typical Range
Base Catch Rate	Inherent difficulty of catching the Pokémon.	Integer	1 (Legendaries) to 255 (Common Pokémon)
Max HP	Pokémon’s maximum Hit Points.	Integer	Varies by Pokémon and level
Current HP	Pokémon’s current Hit Points.	Integer	1 to Max HP
hp_ratio	Current HP divided by Max HP.	Decimal	0.01 to 1.00
Ball Multiplier	Multiplier based on the type of Poké Ball used.	Decimal	0.1 (Master Ball) to 5 (Quick Ball on turn 1)
Status Multiplier	Multiplier based on the Pokémon’s status condition.	Decimal	1 (None) to 2 (Sleep/Freeze)
O-Power Multiplier	Multiplier from Catching Power O-Power.	Decimal	1 (None) to 2.5 (Lv. 3)
A	Intermediate value, capped at 255, used for ‘B’ calculation.	Integer	0 to 255
B	Intermediate value, threshold for shake checks.	Integer	0 to 65535

Practical Examples (Real-World Use Cases)

Understanding the Gen 6 Catch Rate Calculator in action helps illustrate its utility.

Example 1: Catching a Common Pokémon with Basic Tools

• Pokémon: Pikachu (Base Catch Rate: 190)
• Current HP: 100% (full HP)
• Status: None
• Ball: Poké Ball (Multiplier: 1x)
• O-Power: None (Multiplier: 1x)

Calculation:

1. hp_ratio = 100 / 100 = 1
2. a_initial = floor(((3 - 2 * 1) / 3) * 190 * 1 * 1) = floor((1/3) * 190) = floor(63.33) = 63
3. a_capped_1 = min(255, 63) = 63
4. a_o_power = floor(63 * 1) = 63
5. A = min(255, 63) = 63
6. B = floor(1048560 / sqrt(sqrt(16711680 / 63))) = floor(1048560 / sqrt(sqrt(265264.76))) = floor(1048560 / sqrt(515.03)) = floor(1048560 / 22.69) = 46212
7. Catch Probability = (46212 / 65536)^4 = (0.7051)^4 = 0.2469 = 24.69%

Interpretation: Even with a high base catch rate Pokémon at full HP and no status, a standard Poké Ball only gives you about a 25% chance. This highlights why lowering HP and using better balls is crucial for tougher Pokémon.

Example 2: Catching a Legendary Pokémon with Optimal Strategy

• Pokémon: Mewtwo (Base Catch Rate: 3)
• Current HP: 1% (red HP)
• Status: Sleep
• Ball: Ultra Ball (Multiplier: 2x)
• O-Power: Catching Power Lv. 3 (Multiplier: 2.5x)

Calculation:

1. hp_ratio = 1 / 100 = 0.01
2. a_initial = floor(((3 - 2 * 0.01) / 3) * 3 * 2 * 2) = floor(((2.98) / 3) * 12) = floor(0.9933 * 12) = floor(11.92) = 11
3. a_capped_1 = min(255, 11) = 11
4. a_o_power = floor(11 * 2.5) = floor(27.5) = 27
5. A = min(255, 27) = 27
6. B = floor(1048560 / sqrt(sqrt(16711680 / 27))) = floor(1048560 / sqrt(sqrt(618951.11))) = floor(1048560 / sqrt(786.73)) = floor(1048560 / 27.00) = 38835
7. Catch Probability = (38835 / 65536)^4 = (0.5925)^4 = 0.1231 = 12.31%

Interpretation: Even with a legendary Pokémon at 1% HP, asleep, using an Ultra Ball, and with Catching Power Lv. 3, the catch rate is still only around 12.31%. This demonstrates the extreme difficulty of catching legendary Pokémon and why it often takes many attempts and balls. This Gen 6 Catch Rate Calculator helps manage expectations.

How to Use This Gen 6 Catch Rate Calculator

Our Gen 6 Catch Rate Calculator is designed for ease of use, providing quick and accurate results. Follow these steps to get your catch probability:

1. Input Pokémon’s Base Catch Rate: Enter the specific base catch rate of the Pokémon you are trying to catch. This value can be found on various Pokémon databases (e.g., Bulbapedia, Serebii). It ranges from 1 (very hard) to 255 (very easy).
2. Enter Current HP Percentage: Input the Pokémon’s current HP as a percentage of its maximum HP. Lowering a Pokémon’s HP significantly increases your chances of capture.
3. Select Poké Ball Used: Choose the type of Poké Ball you plan to use from the dropdown menu. Each ball has a different multiplier that affects the catch rate.
4. Choose Status Condition: Select any status condition the Pokémon is currently afflicted with (e.g., Sleep, Paralysis). Sleep and Freeze offer the highest multipliers.
5. Select Catching Power O-Power Level: If you have activated Catching Power O-Power, select its level. This provides an additional boost to your catch rate.
6. View Results: The calculator will automatically update the “Catch Rate Calculation Results” section in real-time.

How to Read Results:

• Final Catch Probability: This is the most important number, displayed prominently. It represents the percentage chance of successfully catching the Pokémon on a single throw.
• Modified Catch Rate (A): An intermediate value (0-255) that reflects all modifiers applied to the base catch rate. A higher ‘A’ value means a better chance.
• Shake Check Value (B): Another intermediate value (0-65535) derived from ‘A’. This is the threshold for each of the four “shake checks” that determine a successful capture.
• Probability per Shake Check: The individual probability of passing one of the four required shake checks.

Decision-Making Guidance:

Use the results from the Gen 6 Catch Rate Calculator to refine your strategy. If the probability is too low, consider:

• Lowering the Pokémon’s HP further (e.g., to 1%).
• Inflicting a more potent status condition (Sleep or Freeze).
• Using a stronger Poké Ball (e.g., Ultra Ball, or a specialized ball like Dusk Ball in appropriate conditions).
• Activating a higher level of Catching Power O-Power.
• Stocking up on more Poké Balls, as even a 50% chance means you might need two or more throws.

Key Factors That Affect Gen 6 Catch Rate Calculator Results

Several variables significantly influence the outcome of a catch attempt in Pokémon Gen 6. Understanding these factors is crucial for maximizing your chances, and our Gen 6 Catch Rate Calculator accounts for all of them:

• Pokémon’s Base Catch Rate: This is the most fundamental factor. Every Pokémon has an inherent catch rate value (1-255) assigned to it. Legendaries typically have very low base catch rates (e.g., 3), making them notoriously difficult to catch, while common early-game Pokémon have high rates (e.g., 255). You cannot change this value, but it dictates how much other factors will help.
• Pokémon’s Current HP: The lower a Pokémon’s HP, the easier it is to catch. Reducing a Pokémon to 1 HP (using moves like False Swipe) provides the largest possible boost from this factor. This is why False Swipe is a staple for many catchers.
• Poké Ball Multiplier: Different Poké Balls offer varying multipliers. A standard Poké Ball has a 1x multiplier, while an Ultra Ball has a 2x multiplier. Specialized balls like the Quick Ball (5x on turn 1) or Dusk Ball (3.5x at night/cave) can provide even greater advantages under specific conditions. Choosing the right ball for the situation is key.
• Status Condition Multiplier: Inflicting a status condition on the wild Pokémon significantly increases your catch rate. Sleep and Freeze provide the highest multiplier (2x), followed by Paralysis, Poison, and Burn (1.5x). Sleep is generally preferred as it doesn’t damage the Pokémon (unlike Poison/Burn) and prevents it from attacking.
• Catching Power O-Power: Exclusive to Gen 6, Catching Power O-Power provides a direct multiplier to the calculated ‘A’ value. At Level 1, it’s 1.5x; Level 2, 2x; and Level 3, 2.5x. Using this O-Power can turn a low probability into a much more manageable one, especially for tough catches.
• Critical Capture Chance: While not directly part of the main catch rate formula, critical captures are a separate mechanic that can lead to an instant catch. The chance of a critical capture occurring is influenced by the Pokémon’s base catch rate and the number of Pokémon you’ve caught in your Pokédex. If a critical capture occurs, the main catch rate calculation is bypassed.

Frequently Asked Questions (FAQ) about Gen 6 Catch Rate

Here are some common questions about the Gen 6 Catch Rate Calculator and Pokémon catching mechanics:

Q: Is the Gen 6 catch rate formula different from other generations?

A: Yes, the exact formula for calculating the ‘B’ value and how O-Powers are applied can vary slightly between generations. Our Gen 6 Catch Rate Calculator uses the specific mechanics for Pokémon X, Y, Omega Ruby, and Alpha Sapphire.

Q: Does the Pokémon’s level affect its catch rate?

A: Directly, no. The Pokémon’s level does not appear as a variable in the core catch rate formula. However, higher-level Pokémon generally have higher Max HP, making it harder to reduce their HP percentage, which indirectly affects the catch rate.

Q: What is the best status condition for catching Pokémon?

A: Sleep and Freeze both provide the highest status multiplier (2x). Sleep is generally preferred because it’s easier to inflict and doesn’t cause residual damage like Poison or Burn, which could accidentally knock out the Pokémon.

Q: Are there any hidden factors not included in the calculator?

A: The calculator covers all known, quantifiable factors that directly influence the main catch rate calculation. Critical captures are a separate roll, and while influenced by factors like Pokédex completion, they are not part of the primary formula this calculator focuses on.

Q: Why is my catch rate still low even with optimal conditions?

A: For Pokémon with extremely low base catch rates (like legendaries), even with 1 HP, Sleep, an Ultra Ball, and Catching Power Lv. 3, the probability can still be quite low (e.g., 10-15%). This is by design to make these encounters challenging. The Gen 6 Catch Rate Calculator helps you understand just how low that probability is.

Q: Does the time of day affect catch rates for any balls other than Dusk Ball?

A: In Gen 6, the time of day primarily affects the Dusk Ball (3.5x at night or in caves). Other balls generally have static multipliers regardless of the time of day, unless their description specifies otherwise (e.g., Quick Ball on turn 1).

Q: Can I use this calculator for Pokémon Go or other spin-off games?

A: No, this Gen 6 Catch Rate Calculator is specifically designed for the main series Pokémon games X, Y, Omega Ruby, and Alpha Sapphire. Other games have entirely different catch mechanics and formulas.

Q: What is the purpose of the ‘A’ and ‘B’ values?

A: ‘A’ is an intermediate value that consolidates all the modifiers (HP, ball, status, O-Power) into a single number (0-255). ‘B’ is then derived from ‘A’ and represents the threshold for passing each of the four “shake checks” that determine if a Pokémon is caught. These values are internal to the game’s mechanics.

Related Tools and Internal Resources

Enhance your Pokémon journey with these other helpful tools and guides:

• Pokémon IV Calculator: Determine your Pokémon’s hidden Individual Values for competitive battling.
• Pokémon EV Training Guide: Learn how to strategically train your Pokémon’s Effort Values for optimal stats.
• Gen 6 Shiny Hunting Guide: Discover methods like the Poké Radar and Masuda Method to find shiny Pokémon in X/Y and OR/AS.
• Gen 6 Pokémon Breeding Guide: Master the art of breeding for perfect IVs, Natures, and Egg Moves.
• Gen 6 Pokémon Damage Calculator: Predict battle outcomes by calculating move damage between Pokémon.
• Pokémon Nature Guide: Understand how different Natures affect your Pokémon’s stats and choose the best one.