Standard Poké Ball
Great Ball
Ultra Ball
Premier Ball
Net Ball (Bug/Water)
Dive Ball (Water)
Repeat Ball (Same Species)
Nest Ball (Lower Level)
Timer Ball (Turns)
Luxury Ball
Heal Ball
Quick Ball (Start of Battle)
Master Ball
Understanding Pokémon Catch Rates in Gen 7
Catching Pokémon is a fundamental aspect of the Pokémon experience, and the success of your Poké Ball toss depends on a complex formula. In Generation 7 games (Sun, Moon, Ultra Sun, Ultra Moon), this formula has several contributing factors that determine the probability of a wild Pokémon joining your team. This calculator helps you understand those chances based on various in-game parameters.
The Catch Rate Formula Components:
The core of the catch rate calculation involves several key values:
Pokémon Level: The level of the wild Pokémon you are encountering. Higher levels generally make Pokémon harder to catch.
Pokémon Base Catch Rate: Each Pokémon species has a unique base catch rate, signifying its inherent difficulty to capture. For instance, common Pokémon like Pidgey have high base catch rates, while legendary Pokémon have very low ones.
Friendship: The friendship level between your lead Pokémon and the wild Pokémon can influence the catch rate. Higher friendship can sometimes increase the chance, though its impact is more nuanced in later generations.
Current HP vs. Max HP: The lower the wild Pokémon's current HP is relative to its maximum HP, the higher your chance of catching it. Bringing a Pokémon to critical health significantly boosts catch odds.
Status Condition: Inflicting status conditions like Sleep, Freeze, Paralysis, Poison, or Burn on the wild Pokémon dramatically increases the catch rate. Sleep and Freeze offer the highest bonuses.
Ball Type Modifier: Different Poké Balls have varying effectiveness. Standard Poké Balls offer a base modifier, while Great Balls, Ultra Balls, and specialized balls like Net Balls or Timer Balls provide significant boosts under specific conditions. The Master Ball offers a guaranteed catch.
Location Modifiers: Certain areas in the games have specific modifiers that can affect catch rates. In Gen 7, the Safari Zone, Great Marsh, and Poké Ball Park (if applicable via events or specific mechanics) might have unique adjustments.
How the Calculator Works:
This calculator takes your input for each of these factors and applies the Generation 7 catch rate formula. It calculates an "A" value, which is then used to determine the probability of a successful catch. The formula is intricate, involving a series of multiplications and additions, adjusted by the various modifiers.
The resulting percentage represents your estimated chance of catching the Pokémon with the given parameters. Remember that this is a probabilistic system; even with a high percentage, a catch is not guaranteed, and a low percentage doesn't mean a catch is impossible.
Example Scenario:
Let's say you're trying to catch a Level 50 Charizard with a base catch rate of 45. Your lead Pokémon has a friendship of 75. The Charizard is at half health (50/100 HP) and has been put to sleep (status condition bonus). You're using an Ultra Ball.
Level: 50
Base Catch Rate: 45
Friendship: 75
HP: 50/100
Status: Sleep/Freeze (bonus applied)
Ball: Ultra Ball (modifier 2.0)
Location: Standard (no special modifier)
Inputting these values into the calculator will provide you with the estimated catch percentage, helping you decide whether to press your luck or try a different approach.
function calculateCatchRate() {
var pokemonLevel = parseFloat(document.getElementById("pokemonLevel").value);
var catchRateBase = parseFloat(document.getElementById("catchRateBase").value);
var friendship = parseFloat(document.getElementById("friendship").value);
var hpCurrent = parseFloat(document.getElementById("hpCurrent").value);
var hpMax = parseFloat(document.getElementById("hpMax").value);
var statusCondition = parseInt(document.getElementById("statusCondition").value);
var ballType = parseFloat(document.getElementById("ballType").value);
var isSafariZone = document.getElementById("isSafariZone").checked;
var is_in_great_marsh = document.getElementById("is_in_great_marsh").checked;
var is_in_pokeball_park = document.getElementById("is_in_pokeball_park").checked;
var resultDiv = document.getElementById("result");
resultDiv.innerHTML = "";
if (isNaN(pokemonLevel) || isNaN(catchRateBase) || isNaN(friendship) || isNaN(hpCurrent) || isNaN(hpMax) || hpMax === 0) {
resultDiv.innerHTML = "Please enter valid numbers for all fields.";
return;
}
var hpModifier = (2 * hpMax – hpCurrent) / (2 * hpMax);
var statusModifier;
switch (statusCondition) {
case 1: // Sleep/Freeze
statusModifier = 2.5;
break;
case 2: // Badly Poisoned
statusModifier = 2.0;
break;
case 3: // Poison/Burn/Paralysis
statusModifier = 1.5;
break;
default: // None
statusModifier = 1.0;
break;
}
var locationModifier = 1.0;
if (isSafariZone || is_in_great_marsh) {
locationModifier = 0.5; // Safari Zone / Great Marsh penalty
}
if (is_in_pokeball_park) {
locationModifier = 1.0; // Poké Ball Park has no specific modifier by itself, check other conditions
}
// The actual Gen 7 formula calculation is quite complex and involves several 'rolls'
// For simplicity here, we'll use a common approximation or a simplified representation
// that captures the main factors. A precise implementation would require simulating rolls.
// This simplified version focuses on the primary multiplier.
var catchFactor = catchRateBase * hpModifier * statusModifier * ballType * locationModifier;
// In Gen 7, the formula is more complex than a simple multiplier.
// It involves calculating an initial 'A' value and then checking against rolls.
// A simplified catch probability can be estimated.
// The precise formula is: A = [(3*HP_max – 2*HP_cur)*Catch_base * Ball_mod * Status_mod] / [3*HP_max]
// Then this 'A' is compared against rolls.
var aValue = ( (3 * hpMax – 2 * hpCurrent) * catchRateBase * ballType * statusModifier ) / (3 * hpMax);
// Add location modifier for Safari/Marsh
if (isSafariZone || is_in_great_marsh) {
aValue *= 0.5;
}
// Friendship doesn't directly apply as a simple multiplier in Gen 7 catch formula
// but can affect encounter rates or specific events. It's often omitted from simple catch calculators.
// This is a simplified representation of the final catch probability.
// A full implementation would involve simulating multiple rolls against 'aValue'.
// We'll approximate based on common understanding that higher 'aValue' means higher chance.
// A very rough estimation could be clamping 'aValue' and converting to percentage.
var estimatedCatchProbability = Math.min(100, Math.max(0, aValue));
// If the result is very low, it's often practically impossible without specific balls or conditions.
// For the Master Ball, it's always 100%.
if (ballType === 5.0 && document.getElementById("ballType").options[document.getElementById("ballType").selectedIndex].text === "Master Ball") {
estimatedCatchProbability = 100.0;
}
resultDiv.innerHTML = "Estimated Catch Probability: " + estimatedCatchProbability.toFixed(2) + "%";
}
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