Catch Rate Calculator Gen 7

Calculate your chances of catching a Pokémon in Generation 7 games.

What is Catch Rate in Pokémon Gen 7?

In the world of Pokémon, the "catch rate" refers to a hidden stat that determines how likely a wild Pokémon is to be caught when you throw a Poké Ball at it. This mechanic is fundamental to the core gameplay loop of collecting and training Pokémon. In Generation 7 (Pokémon Sun, Moon, Ultra Sun, and Ultra Moon), the catch rate calculation has specific parameters that influence the outcome of every encounter. Understanding this rate helps trainers strategize their encounters, deciding which balls to use and how to best weaken or status the target Pokémon for a successful capture.

The catch rate is influenced by several factors: the wild Pokémon's inherent catch rate stat, its current HP, its status condition, and the type of Poké Ball used. Additionally, the level of the wild Pokémon plays a role in determining the final catch modifier. Trainers who wish to optimize their catching efforts, especially for rare or legendary Pokémon, will benefit greatly from knowing how these elements interact.

Common misunderstandings often revolve around the exact values and how they are applied. For instance, many players assume that lowering HP to 1 and inflicting a status condition are always the best strategies, but the exact contribution of each factor depends heavily on the Pokémon's base catch rate and the ball being used. Furthermore, the specific formulas can vary slightly between Pokémon generations, making a Gen 7-specific calculator crucial for accuracy.

Catch Rate Calculator (Gen 7) Formula and Explanation

The formula used to calculate the catch rate in Generation 7 is a complex interplay of several variables. While the exact internal calculation involves some rounding and specific floor functions, the core logic can be represented to estimate the probability of a successful catch.

Estimated Catch Probability (%) = floor(floor(3 * MaxHP - 2 * CurrentHP) * BallMod * StatusMod * CatchRateBase / (3 * MaxHP)) * Modifier
Then, multiply by 100 and divide by 256 for the percentage chance.

Let's break down the components:

Formula Variables

Variable	Meaning	Unit/Type	Typical Range
MaxHP	The maximum Hit Points of the wild Pokémon.	HP (unitless)	1 – 999
CurrentHP	The current Hit Points of the wild Pokémon.	HP (unitless)	0 – MaxHP
CatchRateBase	The Pokémon's base catch rate stat.	Stat (0-255)	1 – 255
StatusMod	A modifier based on the wild Pokémon's status condition.	Multiplier	1.0 (No Status), 1.5 (Sleep/Freeze), 2.0 (Burn/Poison), 2.5 (Paralysis)
BallMod	A modifier based on the type of Poké Ball used.	Multiplier	Varies by ball (e.g., 1.0 for Normal, 1.5 for Great, 2.0 for Ultra)
Modifier	A final modifier, often derived from level and ball type, affecting the overall catch chance. In Gen 7, this is typically 1 unless a specific ball like the Timer Ball is used, or if the catch is a "critical capture". This calculator primarily focuses on the base modifiers. A critical capture in Gen 7 has its own separate calculation that significantly increases catch chance.	Multiplier	Typically 1.0 for standard calculations.

The calculator takes your input for level, current HP, max HP, status, ball type, and the Pokémon's base catch rate. It then applies the corresponding modifiers to estimate the success probability, expressed as a percentage.

Practical Examples

Let's see how the calculator works with some realistic scenarios:

Example 1: Catching a common Pokémon

• Pokémon Level: 15
• Pokémon Current HP: 75% (e.g., Max HP 100, Current HP 75)
• Pokémon Max HP: 100
• Status Condition: None
• Ball Type: Great Ball
• Pokémon Base Catch Rate: 190 (e.g., Rattata)

Using the calculator with these inputs might yield a catch rate of approximately 35-40%. The Great Ball provides a moderate boost, and with a good portion of HP remaining and no status, the chance is decent but not guaranteed.

Example 2: Catching a rarer Pokémon with status

• Pokémon Level: 50
• Pokémon Current HP: 10% (e.g., Max HP 300, Current HP 30)
• Pokémon Max HP: 300
• Status Condition: Paralysis
• Ball Type: Ultra Ball
• Pokémon Base Catch Rate: 45 (e.g., Gible)

In this scenario, the combination of low HP, Paralysis (which offers a significant modifier), and the Ultra Ball's increased effectiveness drastically improves the odds. The calculator might show a catch rate of around 70-80%, illustrating how strategic weakening and status infliction can make a substantial difference, especially for Pokémon with lower base catch rates.

Example 3: Using a different ball type

Consider the same Gible from Example 2, but instead of an Ultra Ball, you use a Dusk Ball at night (or in a cave). The Dusk Ball offers a 3.5x multiplier in these conditions.

• Pokémon Level: 50
• Pokémon Current HP: 10% (e.g., Max HP 300, Current HP 30)
• Pokémon Max HP: 300
• Status Condition: Paralysis
• Ball Type: Dusk Ball (in appropriate conditions)
• Pokémon Base Catch Rate: 45

The significantly higher multiplier from the Dusk Ball, combined with the other favorable conditions, could push the catch rate well over 90%, highlighting the importance of choosing the right ball for the situation. For more on specific ball effectiveness, explore our related tools.

How to Use This Catch Rate Calculator (Gen 7)

1. Enter Pokémon Level: Input the level of the wild Pokémon you are encountering.
2. Input HP Values: Provide both the wild Pokémon's current HP and its maximum HP. It's often easiest to estimate current HP as a percentage (e.g., 25% for low HP, 75% for moderate HP) and then use the Max HP to calculate the actual value if needed, or input the exact numbers if known.
3. Select Status Condition: Choose the appropriate status effect (if any) from the dropdown menu: None, Sleep/Freeze, Burn/Poison, or Paralysis.
4. Choose Ball Type: Select the specific Poké Ball you intend to use (e.g., Great Ball, Ultra Ball, Dusk Ball). Note that some balls, like the Dusk Ball, have conditional bonuses.
5. Find Base Catch Rate: Look up the wild Pokémon's base catch rate stat. This is a fixed value for each species and can be found in online Pokédexes or databases.
6. Calculate: Click the "Calculate Catch Rate" button.

Selecting Correct Units: All HP values are unitless (represented as HP points). The Level is a standard number. The Base Catch Rate is a value between 0 and 255. Status and Ball Type are selected from predefined options. The output is a percentage.

Interpreting Results: The main result shows the estimated percentage chance of successfully catching the Pokémon under the specified conditions. The intermediate values (Base Probability, HP Modifier, Status Modifier, Ball Modifier, Final Modifier) show how each factor contributes to the overall catch chance. A higher percentage indicates a greater likelihood of success.

Key Factors That Affect Catch Rate in Gen 7

1. Pokémon's Base Catch Rate: This is the most intrinsic factor. Some Pokémon are naturally easier to catch than others. For example, Magikarp has a very high base catch rate (255), making it exceptionally easy to catch, while many legendary Pokémon have the lowest base catch rate (3).
2. Current HP Percentage: The lower the wild Pokémon's current HP, the higher the catch rate modifier. Reducing a Pokémon to very low HP (e.g., 1 HP) significantly increases your chances compared to catching it at full health.
3. Status Conditions: Inflicting status conditions like Sleep, Freeze, Burn, Poison, or Paralysis applies a multiplier that boosts the catch rate. Paralysis generally offers the highest boost among the common, non-lethal statuses.
4. Type of Poké Ball: Different Poké Balls have different effectiveness multipliers. Standard balls are baseline (1x), Great Balls offer a slight boost (1.5x), Ultra Balls offer a stronger boost (2x), and specialized balls like the Dusk Ball (3.5x at night/in caves) or Timer Ball (increasing effectiveness over turns) can drastically alter success rates under specific conditions.
5. Pokémon Level: While the formula used in Gen 7 places less direct emphasis on the player's Pokémon level compared to some earlier generations, the wild Pokémon's level still factors into the final modifier calculation, particularly in conjunction with ball types.
6. Critical Captures: Gen 7 introduced "Critical Captures," a mechanic that randomly applies a significant multiplier (around 2.5x the normal catch rate) to your catch attempt. This is independent of the other factors and provides a chance for an easy catch even under unfavorable conditions. This calculator focuses on the deterministic factors.
7. HP Modifier Calculation: The specific formula floor(3 * MaxHP - 2 * CurrentHP) means that catching a Pokémon at very low HP yields a higher modifier than simply reaching 1 HP. For instance, being at 1 HP provides a modifier closer to 3, while being at 10% HP provides a modifier closer to 1.5-2, depending on Max HP.

Frequently Asked Questions (FAQ)

Q1: Is the catch rate the same in all Pokémon games?

No, the catch rate formula and the effectiveness of certain items can vary significantly between Pokémon generations. This calculator is specifically for Generation 7 (Sun, Moon, Ultra Sun, Ultra Moon).

Q2: How accurate is this calculator?

This calculator provides a highly accurate estimate based on the known Gen 7 catch rate formula. It accounts for base catch rate, HP, status, and standard ball modifiers. It does not factor in the random Critical Capture mechanic, which can increase the chances further.

Q3: What is the difference between Current HP and Max HP input?

The calculator uses the ratio of Current HP to Max HP to determine a modifier. The lower the current HP relative to the maximum, the higher this modifier becomes, increasing your catch chance.

Q4: Which status condition is best for catching?

Generally, Paralysis offers the best modifier (2.5x) among standard statuses without causing damage over time. Sleep/Freeze offers a 1.5x modifier, while Burn/Poison offer a 2.0x modifier. However, Burn/Poison also deal damage each turn, which might reduce HP too much.

Q5: Are Beast Balls included?

Yes, Beast Balls are included in the ball type selection. They have a special multiplier (5x) when used against non-Ultra Beasts and a standard multiplier (1x) against Ultra Beasts. This calculator applies the standard multiplier.

Q6: What does the "Final Catch Modifier" mean?

This represents the combined effect of the Ball Modifier, Status Modifier, and the HP-based calculation, multiplied by the Pokémon's Base Catch Rate, before the final level-based adjustments and rounding. It's an intermediate step in determining the final catch probability.

Q7: Can I catch a Pokémon at full HP with no status?

Yes, it's possible, especially if the Pokémon has a high base catch rate and you use a strong ball like an Ultra Ball or Master Ball. However, the chances are significantly lower compared to weakening the Pokémon and inflicting status.

Q8: Does the Pokémon's ability affect catch rate?

Generally, the Pokémon's ability does not directly affect the catch rate formula in Generation 7. Abilities like "Sturdy" might prevent OHKOs but don't change the catch calculation itself. Some Pokémon abilities might influence encounters (e.g., Intimidate to lower Attack), but not the direct catch probability formula.