No Berry
Razz Berry
Pinap Berry (not for catch rate, but for candy)
Nanab Berry
Oran Berry
Sitrus Berry
Lum Berry
Normal Throw
Nice Throw
Great Throw
Excellent Throw
Curveball
Understanding Pokemon Go Catch Rates
Catching Pokemon in Pokemon Go is a core mechanic, but the success rate isn't always straightforward. Several factors influence how likely you are to catch a creature with a Poke Ball. Understanding these factors can significantly improve your success rate and reduce the number of wasted Poke Balls.
Key Factors Influencing Catch Rate:
Base Catch Rate: Every Pokemon species has an inherent base catch rate. Some Pokemon, like Magikarp or Caterpie, are generally easier to catch than rarer or more powerful Pokemon.
Trainer Level: While not a direct multiplier in the commonly cited formulas, the difference between your Trainer Level and the Pokemon's level plays a role in the Pokemon's flee rate and can indirectly affect your perceived catch success. For simplicity, our calculator uses a 'level difference' input to represent this relationship. A higher positive difference (your level >> Pokemon level) generally means an easier catch.
Ball Type: Different balls offer different catch rate bonuses. The standard Poke Ball has no bonus, while Great Balls and Ultra Balls significantly increase your chances.
Berry Usage: Berries can provide a temporary boost to your catch rate. Razz Berries offer a moderate increase, while rarer berries can offer greater benefits. (Note: Pinap Berries are primarily for candy bonuses, not catch rates, but are included for completeness).
Throw Type: The accuracy and type of your throw also matter. A well-timed "Nice," "Great," or "Excellent" throw grants bonuses. Throwing a "Curveball" also provides a significant boost to your catch chance.
Circle Color/Size: While not directly input into this calculator, the color of the Pokemon's attack circle (which indicates difficulty) and the size of the circle when you throw your ball are crucial. Smaller circles when you release the ball lead to higher bonuses. Our 'Throw Type Bonus' attempts to encapsulate successful throws.
How the Calculator Works:
This calculator takes your Pokemon Go knowledge and applies a simplified formula to estimate your catch rate. It combines the base catch rate with multipliers from the ball type, berry used, and the type of throw. The Trainer Level Difference is factored in to adjust for the Pokemon's perceived difficulty.
Formula (Simplified):
Final Catch Rate = (Base Catch Rate / 256) * Ball Multiplier * Berry Multiplier * Throw Multiplier * (Trainer Level Bonus Factor)
The 'Trainer Level Bonus Factor' is a simplified representation, and the other multipliers are applied to the initial 256 possible outcomes. The result is then converted back to a percentage.
Remember, this is an estimation. Actual catch rates can vary due to many subtle game mechanics, including the specific CP and IVs of the Pokemon, and the dynamics of the catch circle.
function calculateCatchRate() {
var baseCatchRatePercent = parseFloat(document.getElementById("baseCatchRate").value);
var levelDifference = parseInt(document.getElementById("levelDifference").value);
var ballTypeMultiplier = parseFloat(document.getElementById("ballType").value);
var berryTypeMultiplier = parseFloat(document.getElementById("berryType").value);
var throwTypeMultiplier = parseFloat(document.getElementById("throwType").value);
var resultElement = document.getElementById("result");
if (isNaN(baseCatchRatePercent) || isNaN(levelDifference) || isNaN(ballTypeMultiplier) || isNaN(berryTypeMultiplier) || isNaN(throwTypeMultiplier)) {
resultElement.textContent = "Please enter valid numbers for all fields.";
return;
}
// Base catch rate is out of 256 possibilities, convert percentage to this scale
var baseCatchRateOutOf256 = (baseCatchRatePercent / 100) * 256;
// Level difference adjustment factor (simplified, can be adjusted based on game mechanics)
// A common approximation is that a 10 level difference can halve or double the catch rate.
// This is a very rough estimate.
var levelFactor = 1.0;
if (levelDifference > 0) {
levelFactor = 1.0 + (levelDifference * 0.05); // Example: 10 levels up gives 50% bonus
} else if (levelDifference < 0) {
levelFactor = 1.0 – (-levelDifference * 0.05); // Example: 10 levels down gives 50% penalty
if (levelFactor 256)
// The maximum theoretical catch rate for any Pokemon is effectively 100%, or 256/256.
if (effectiveCatchRateOutOf256 > 256) {
effectiveCatchRateOutOf256 = 256;
}
// Convert back to percentage for display
var finalCatchRatePercent = (effectiveCatchRateOutOf256 / 256) * 100;
// Ensure the final percentage is not negative or excessively high due to extreme inputs
if (finalCatchRatePercent 100) finalCatchRatePercent = 100;
resultElement.textContent = "Estimated Catch Rate: " + finalCatchRatePercent.toFixed(2) + "%";
}