Pokémon Database

Pokémon Black 2 and White 2 Catch Rate Calculator

Exact catch chance for every ball and status in Unova. Generation V capture formula.

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The Unova sequels keep the Generation V capture rules, including critical captures that scale with your Pokédex. If you are chasing a Hidden Grotto Pokémon, a roaming legendary or a post-game target, this calculator shows what each ball and condition really does.

Select Pokémon

#025PikachuelectricPikachu

Catch rate and max HP start from the species data and a typical stat spread. Edit either one if you know your target's real value.

Battle Conditions

Results — Per Throw

Catch Probability35.2%
Visual
Decent
X value (internal)63.3
Ball multiplier1×
Current HP65 / 65
Critical capture chance0.00%
Throws for 50%2
Throws for 95%7

Cumulative Catch Probability

1 throw
35.2%
3 throws
72.8%
5 throws
88.6%
10 throws
98.7%
20 throws
100%
50 throws
100%

How catching works in Generations V to IX

From Generation V on, the modified catch rate is a = (3 × max HP − 2 × current HP) × catch rate × ball bonus ÷ (3 × max HP), multiplied by the status bonus (2.5 for sleep and freeze, 1.5 for the others). If a is 255 or more the catch is automatic.

Otherwise each shake check succeeds with chance b ÷ 65,536, where b = 65,536 ÷ (255 ÷ a) to the power of 0.1875. Four checks must all succeed, which works out to roughly (a ÷ 255) to the power of 0.75 overall.

A critical capture can replace the four checks with a single one. Its chance is a × a multiplier from how many species you have caught (0 up to 30, then 0.5, 1, 1.5, 2 and 2.5), divided by 6, out of 256. The Catching Charm doubles the multiplier in the games that have it.

Tips for Catching Pokémon in Pokémon Black 2 and White 2

  • Because critical capture odds depend on how many species you have caught, the same throw is stronger late in the post-game than early on.
  • Timer Ball grows by about 0.3 per turn after the first and caps at 4× around turn 10 in this generation's formula, so it is quick to pay off.
  • Repeat Ball is 3× on species you have already caught, so it suits farming for shiny or perfect-IV copies.
  • Net Ball covers Bug and Water types at 3×, which makes it the natural choice for most Bug and Water hunts.

Ball Reference (Pokémon Black 2 and White 2)

Poké Ball
1×. No bonus.
Great Ball
1.5×. Reliable early upgrade.
Ultra Ball
2×. Best general-purpose ball.
Master Ball
Always catches.
Premier Ball
1×. Same as a Poké Ball.
Luxury Ball
1×. Raises friendship only.
Net Ball
3× against Bug and Water types, otherwise 1×.
Dive Ball
3.5× while surfing, fishing or underwater, otherwise 1×.
Nest Ball
Up to 4×, falling as the target's level rises. 1× from level 41.
Repeat Ball
3× on species you have already caught, otherwise 1×.
Timer Ball
Grows with each turn in battle, up to 4×.
Heal Ball
1×. Restores HP after the catch.
Quick Ball
5× on the first turn only, otherwise 1×.
Dusk Ball
3.5× at night or in caves, otherwise 1×.

Frequently Asked Questions

Is the Timer Ball better than the Ultra Ball?

From about the fourth turn of a battle the Timer Ball is worth more than the Ultra Ball's 2×, and it reaches its 4× cap around turn ten.

Do I need to enter exact HP?

A percentage is enough. The calculator estimates max HP from the base stat and level and lets you edit it.

What if my Pokémon's catch rate is different in this game?

Type the value into the catch rate box and every result updates.

More Catch Rate Calculators

Planning a playthrough? Read our Pokémon Black 2 and White 2 guide.

Results are exact for the formula shown, to within the game's own rounding. Species catch rates are the current values and a few differ in older games, so edit the catch rate if you know yours.