Pokemon Catch Rate Calculator Gen 6

Pokemon Gen 6 Catch Rate Calculator

e.g., Legendaries = 3, Starters = 45
Poké Ball (1x) Great Ball (1.5x) Ultra Ball (2x) Dusk Ball (Night/Cave) (3.5x) Net Ball (Water/Bug) (4x) Quick Ball (Turn 1) (5x* – Gen 6 use 5x) Repeat Ball (Already Caught) (3x – Gen 6 use 3x) Premier Ball (1x)
None (1x) Sleep or Freeze (2.5x) Paralyze, Burn, or Poison (1.5x)
None (1x) Level 1 (1.1x) Level 2 (1.2x) Level 3 (1.3x)

Catch Statistics


Understanding the Gen 6 Catch Mechanics

In Generation 6 (Pokemon X, Y, Omega Ruby, and Alpha Sapphire), the catch formula remains one of the most vital systems for trainers to understand. Unlike earlier generations, Gen 6 introduced specific Capture Power O-Powers and refined the bonuses for various Poke Balls.

The Mathematical Formula

The core calculation for the modified catch rate (X) in Gen 6 is:

X = (((3 * MaxHP – 2 * CurrHP) * BaseRate * BallMod) / (3 * MaxHP)) * StatusMod * OPower

If the value of X is 255 or higher, the Pokemon is caught instantly. Otherwise, the game performs "shake checks" using a randomized value derived from X.

Key Variables for Success

  • HP Factor: Lowering the Pokemon to 1 HP (using moves like False Swipe) nearly triples the catch effectiveness compared to full health.
  • Status Effects: Sleep and Freeze are the most potent, providing a 2.5x multiplier. Paralyze, Poison, and Burn only provide 1.5x.
  • Catch Rate: Every Pokemon species has a base rate. Common Pokemon like Caterpie have a rate of 255, while Legendaries like Mewtwo have a rate of 3.
  • O-Powers: Capture Power is a Gen 6 exclusive mechanic. Using Capture Power Level 3 provides a massive 1.3x boost that stacks with other multipliers.

Realistic Example: Catching Xerneas or Yveltal

Legendaries in Gen 6 often have a base catch rate of 45 (unusually high for legendaries). If you use an Ultra Ball (2x) on a Xerneas at 1 HP with Sleep (2.5x) and Capture Power 3 (1.3x):

  • Base: 45
  • Health Multiplier: ~3x
  • Ball: 2x
  • Status: 2.5x
  • O-Power: 1.3x
  • Final Result: Over 80% chance per ball!
function calculateCatchGen6() { var hpMax = parseFloat(document.getElementById('hpMax').value); var hpCurr = parseFloat(document.getElementById('hpCurr').value); var baseRate = parseFloat(document.getElementById('baseRate').value); var ballMod = parseFloat(document.getElementById('ballMod').value); var statusMod = parseFloat(document.getElementById('statusMod').value); var oPower = parseFloat(document.getElementById('oPower').value); if (isNaN(hpMax) || isNaN(hpCurr) || hpMax <= 0 || hpCurr hpMax) hpCurr = hpMax; // Gen 6 Catch Rate Formula (X) var x = (((3 * hpMax – 2 * hpCurr) * baseRate * ballMod) / (3 * hpMax)) * statusMod * oPower; var catchProbability = 0; if (x >= 255) { catchProbability = 100; } else { // Gen 6 Shake Check Calculation // Y = floor( 65536 / ( (255/X)^(1/4) ) ) var y = Math.floor(65536 / Math.pow((255 / x), 0.25)); // Probability is (Y / 65536)^4 catchProbability = Math.pow((y / 65536), 4) * 100; } // Display Results var resDiv = document.getElementById('gen6Result'); var percentP = document.getElementById('finalPercentage'); var ballsP = document.getElementById('avgBalls'); resDiv.style.display = 'block'; var finalVal = catchProbability.toFixed(2); percentP.innerText = finalVal + "% Catch Chance"; if (catchProbability > 0) { var avg = Math.ceil(100 / catchProbability); ballsP.innerText = "Estimated average: " + avg + " ball(s) required."; } else { ballsP.innerText = "The catch is nearly impossible under these conditions."; } }

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