Pokémon Database

Pokémon Ultra Sun and Ultra Moon Catch Rate Calculator

Exact catch chance for every ball and status in Alola. Generation VII capture formula.

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Ultra Sun and Ultra Moon add more Ultra Beasts and Ultra Wormhole legendaries to catch, all under the Generation VII formula. This calculator handles the Beast Ball's split behavior and the level-13 bonus automatically.

Select Pokémon

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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 Ultra Sun and Ultra Moon

  • Ultra Wormhole Ultra Beasts are the one place the Beast Ball shines. A fresh Ultra Beast with full HP is still a long shot, so weaken it first.
  • A target in the red HP zone with a sleeping status can approach a guaranteed catch even with an Ultra Ball.
  • Dusk Ball is 3× at night and in caves in this generation, down from 3.5× in earlier games.

Ball Reference (Pokémon Ultra Sun and Ultra Moon)

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
3.5× 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× at night or in caves, otherwise 1×.
Level Ball
8× if your lead is over 4× the target's level, 4× over 2×, 2× if higher, otherwise 1×.
Lure Ball
5× on Pokémon hooked while fishing, otherwise 1×.
Moon Ball
4× for Nidoran, Nidorina, Nidorino, Clefairy, Jigglypuff, Skitty and Munna, otherwise 1×.
Friend Ball
1×. Raises friendship only.
Love Ball
8× if the target is the same species and the opposite gender, otherwise 1×.
Heavy Ball
Changes the catch rate by weight: −20, 0, +20 or +30 at 100, 200 and 300 kg.
Fast Ball
4× against Pokémon with a base Speed of 100 or more.
Beast Ball
5× against Ultra Beasts, 0.1× against everything else.

Frequently Asked Questions

Does the Beast Ball ever make sense for a normal Pokémon?

No. It multiplies by 0.1 against anything that is not an Ultra Beast.

Why does a full-HP Ultra Beast still resist the Beast Ball?

The 5× bonus is large, but Ultra Beasts have low catch rates, so most of the work still comes from HP and status.

Does a Z-Move change the odds?

Only through the HP it removes.

More Catch Rate Calculators

Planning a playthrough? Read our Pokémon Ultra Sun and Ultra Moon 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.