Gen 1–9 · Poké Ball Modifiers · Shake Mechanics

Pokemon Catch Rate Calculator

Simulate exact capture probabilities for all 1,351 Pokémon species. Calculate single-throw odds, critical capture chances, and average ball consumption based on real mainline game algorithms.

1. Target Pokémon & Encounter Settings Live Algorithm
Popular:
Pikachu
Pikachu (#25)
Electric
Base Catch Rate: 190 • Base HP: 35 • Weight: 6 kg
Remaining HP 100%
%
2. Capture Odds & Probability Analysis Output
Catch Chance Per Throw
35.2%
Average 2.8 Poké Balls required.
Expected Throws
2.8
Critical Capture Odds
4.5%
Cumulative Capture Probability
  • Chance within 1 ball: 35.2%
  • Chance within 5 balls: 88.4%
  • Chance within 10 balls: 98.7%
  • Balls for 90% certainty: 6 balls
  • Balls for 99% certainty: 11 balls
Click above to test your luck in real time!
View Official Capture Formula Variables

In Generations 5 through 9, the game engine calculates modified rate a and internal shake check b:

a = 89.20 | b = 47820 / 65536 | Single Shake: 72.97% | Crit: 4.5%

Four independent 16-bit pseudo-random numbers must fall below b for a successful four-shake capture.

How the Pokémon Catch Rate Formula Works

The mainline Pokémon video games calculate whether a wild Pokémon stays inside a Poké Ball using a multi-step mathematical formula. While players often rely on intuition, every throw is governed by strict probability algorithms that combine the Pokémon's innate catch rate, its current hit points, the ball modifier, and active status conditions.

🎯 Innate Catch Rate

Every species has a fixed base catch rate ranging from 3 (rarest legendaries like Mewtwo and Beldum) to 255 (common route 1 Pokémon like Pidgey and Caterpie).

❤️ Health Multiplier

Lowering the wild target's HP from 100% to 1% nearly triples your effective catch rate, heavily weighting remaining health into the formula.

⚡ Status Conditions

Sleep and Freeze provide the maximum 2.5x multiplier in modern games. Paralysis, Poison, and Burn deliver a reliable 1.5x boost without wake-up risk.

🔴 Ball Multipliers

Specialty balls like the Level Ball (8x), Dusk Ball (3x), or Net Ball (3.5x) easily outperform standard Ultra Balls (2x) when meeting their conditions.

The Core Modified Catch Value (a)

Since Generation 5, the game first determines an intermediate value known as a using the following official equation in our Pokemon Catch Rate Calculator:

a = [((3 × Max HP - 2 × Current HP) × Base Catch Rate × Ball Bonus) / (3 × Max HP)] × Status Bonus

If the calculated value of a reaches or exceeds 255, the Pokémon is guaranteed to be captured immediately without any ball shakes. If a is less than 255, the Pokemon Catch Rate Calculator calculates a second value, b, representing the probability of passing each individual wobble check.

Poké Ball Multipliers and Strategic Selection

Choosing the correct Poké Ball drastically shortens legendary battles and prevents wild Pokémon from fainting due to Struggle recoil. Below is an overview of the most impactful specialty balls evaluated by our Pokemon Catch Rate Calculator:

Quick Ball (5.0x Multiplier)

Unmatched on Turn 1 of any encounter. For ordinary wild encounters, a Quick Ball provides an instant ~80% to 95% capture chance before entering combat.

Dusk Ball (3.0x Multiplier)

Active between 8:00 PM and 5:59 AM in-game, or inside any cave/dungeon at any hour. Far more cost-effective and powerful than an Ultra Ball (2.0x).

Timer Ball (1.0x to 4.0x)

Scales upwards with each battle turn passed. Reaches its maximum 4.0x cap after 10 turns in Generation 5+, making it the ultimate tool for stubborn legendaries.

Level Ball (Up to 8.0x)

Delivers an astounding 8x multiplier when your active Pokémon's level is quadruple the wild Pokémon's level, guaranteeing rapid captures of lower-level targets.

Net Ball (3.5x Multiplier)

Universally applies a 3.5x boost against any wild Pokémon with either the Water or Bug typing, including titans like Kyogre, Volcarona, and Araquanid.

Heavy Ball (Flat Weight Shift)

Instead of a multiplier, Heavy Balls add or subtract fixed points from the base catch rate (+20 for 200–300kg, +30 for 300kg+), highly effective against Snorlax and Groudon.

How to Maximize Your Pokémon Catch Rate: Step-by-Step

Follow these proven battle strategies to turn frustrating legendary battles into effortless captures using our Pokemon Catch Rate Calculator:

1

Lead with a False Swipe or Super Fang User

False Swipe guarantees the wild Pokémon survives with exactly 1 HP, maximizing the health modifier in the capture equation without risking an accidental knockout.

2

Inflict Sleep via Spore or Hypnosis

Sleep provides a massive 2.5x multiplier. Breloom, Amoonguss, and Smeargle are ideal catch-assist partners because they learn 100% accurate Spore alongside False Swipe.

3

Throw High-Multiplier Specialty Balls

Open the encounter with a Quick Ball. If it breaks free, transition to Dusk Balls at night or cave interiors, and switch to Timer Balls if the duel exceeds 10 turns.

4

Acquire the Catching Charm Key Item

In modern titles including Sword, Shield, Scarlet, and Violet, speaking to the Game Director NPC after registering Pokédex milestones awards the Catching Charm, permanently boosting Critical Captures.

Pokemon Catch Rate Calculator FAQ

How is Pokémon catch rate calculated in modern games?

Catch rate is calculated using a modified formula factoring the target's base catch rate, remaining HP percentage, Poké Ball bonus, and status condition modifier. In Generations 5 through 9, an intermediate value a is generated; if a ≥ 255, the capture is guaranteed. Otherwise, four independent shake probability checks determine success.

Which Poké Ball has the highest catch rate multiplier?

Excluding the 100% Master Ball, the Level Ball provides up to an 8x multiplier when your active Pokémon is more than quadruple the wild target's level. Following that, the Quick Ball offers a 5x multiplier on Turn 1, while the Timer Ball scales up to 4x after turn 10.

How much does putting a wild Pokémon to sleep increase catch odds?

Inflicting Sleep or Freeze multiplies the modified catch rate by 2.5x in Generations 5 through 9, compared to 1.5x for Paralysis, Poison, or Burn. Because Sleep wears off after several turns, using Spore repeatedly is the gold standard for high-difficulty legendary encounters.

Why is Beldum famously difficult to catch in Poké Balls?

Beldum has a base catch rate of 3, identical to major legendary Pokémon like Mewtwo and Rayquaza, making it one of the hardest non-legendaries to capture. Coupled with its only move Take Down dealing recoil damage, players frequently risk Beldum knocking itself out before a ball succeeds.

How does a Critical Capture work in Pokémon battles?

A Critical Capture makes a distinct high-pitched whistle sound when thrown, only shakes once in mid-air, and dramatically increases the probability of a successful capture. Introduced in Generation 5, the chance of triggering a Critical Capture scales with the number of registered Pokémon in your Pokédex.

Does using a Quick Ball guarantee catching a Pokémon on turn 1?

No, the Quick Ball grants a 5x multiplier on turn 1, which drastically boosts capture odds but does not guarantee success against legendaries or low base catch rate species. On full-health targets with a base rate of 3, a Quick Ball yields approximately a 2.5% to 5% capture rate.

When is a Dusk Ball better than an Ultra Ball?

A Dusk Ball is always superior to an Ultra Ball at night or inside caves, providing a 3.0x multiplier compared to the Ultra Ball's fixed 2.0x bonus. It is 50% more effective whenever its environmental criteria are met, making it the most cost-efficient ball for cave raids.

What does the Catching Charm do in Generation 8 and 9?

The Catching Charm is a key item that permanently increases the frequency of Critical Captures, effectively multiplying your overall catch rate modifier by approximately 1.5x. It is awarded by Game Freak developers inside hotel rooms after completing designated regional dex milestones.

Why do Beast Balls almost always fail on regular Pokémon?

Beast Balls have a punitive 0.1x catch multiplier against standard Pokémon species, only activating their 5.0x maximum multiplier when thrown at Ultra Beasts. Throwing a Beast Ball at standard wild Pokémon divides your capture chances by ten, turning even common targets into grueling trials.

Can I calculate catch rates for Pokémon Scarlet, Violet, and Legends Z-A?

Yes, this calculator fully supports Generation 9 mechanics, Scarlet and Violet DLC encounters, and forthcoming Legends titles using the modern Gen 5–9 capture formula. All 1,351 Pokémon species, form variants, and regional adaptations are fully integrated.