Gen III/IV Catch Rate Calculator

Other catch rate calculators: Gen I, Gen II, Gen V, Gen VI/VII, Gen VIII, Gen IX

To approximate your chances of catching any Pokémon in the third- and fourth-generation Pokémon games, enter the appropriate information below. To learn more about how this works, see the Gen III/IV Capture Mechanics page.

Shadow Pokémon? If you are playing Pokémon Colosseum or Pokémon XD: Gale of Darkness for the GameCube and this Pokémon is a Shadow Pokémon, select the appropriate option.




Approximation of current HP:



Note that in Ruby and Sapphire only, if the Pokémon is badly poisoned, it does not count as poisoned.

(Adjust this box if the Pokémon has been affected by a move or ability such as Camouflage or Color Change.)

Gender:


Your Pokémon's gender:



If checked, you will see the results for each possible HP IV if they would yield different results; otherwise, you'll see the overall chance assuming you know nothing about the IV. This is only very meaningful at full or exactly 1 HP, since the approximation of the Pokémon's current HP is not exact.

Page last modified June 8 2026 at 20:52 UTC

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109 The above sprite has a 1/8192 chance of being shiny. (Modern browsers will give it a yellow glow if so.)

Comments

My own messages will be signed as Butterfree, with the Admin label below my name. If someone signs as Butterfree without that label, it's probably not me.

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Fedora

Catching Moltres

» Reply to this [26/07/2025 21:22:48]
cookie
In response to: post by Daniel

LMFAO same struggling with this

» Reply to this [24/07/2025 14:26:31]
kibble

Um… It was helpful ^_^ thx.

» Reply to this [20/07/2025 21:14:49]
Obziliestion

I have nothing to say i just want to brag that I got a shiny paras. It doesn't change mostly anything apart from the mushroom being a pale shade of pink

» Reply to this [17/07/2025 13:10:10]
Daniel

Great website thanks! Currently trying to get Lugia in Soul Silver with ultra balls. Apparently it's going to be a tough one!

» Reply to this [04/07/2025 22:09:02]
Nicole

Man I love this website. Currently trying to catch a level 4 darkrai with pokeballs bc of it being a randomizer T-T

» Reply to this [25/05/2025 22:25:06]
corndog

ty! would love if this had a safari zone capture calculator too

» Reply to this [19/05/2025 01:46:07]
River the Gremlin

As a shiny hunter, coming to this website is either a complete relief, or the dooming realization that I have majorly screwed up. Anyway thank you for making this!

» Reply to this [16/05/2025 18:47:40]
QPc_G17

The very moment I calculated the odds of catching Uxie (~3%) I caught it instantly. Thanks!

» Reply to this [13/05/2025 04:22:30]
rayray

marshtomp screaming happily

» Reply to this [27/04/2025 15:13:09]
DaBouse

This website is super useful!
It's helped me loads with completing the pokedex!

» Reply to this [21/04/2025 15:54:18]
Kprojects Kurt

This gives me hope

» Reply to this [12/04/2025 01:30:12]
Butterfree
Admin
Website: The Cave of Dragonflies

@celestialVulpine: The raw formula and all the math involved are explained on the Gen III/IV capture mechanics page linked near the top of the page!

» Reply to this [24/03/2025 17:58:13]
celestialVulpine

This is awesome, thank you so much for making this!!

Do you think you could include the raw formula for people to figure out how it works?
I'm a nerd who loves this kinda math and I'd love to use this to learn how the catching formula works & where to plug things in at

» Reply to this [24/03/2025 00:08:32]
lucas

this helped me catch a regirock

» Reply to this [18/03/2025 23:44:56]
Tempor

Thank you for helping me catch Pokémon to catch a Pokémon. Wow.

» Reply to this [05/03/2025 07:26:36]
Ihateluckroll

I try to catch a registeel at level 50 and i only have a great ballz

» Reply to this [04/03/2025 22:21:59]
kroko

great! i love it, but i didnt catch it anyways hahah

» Reply to this [28/02/2025 19:01:54]
Olivia

Thank you so much for this! It’s been such a timesaver.

» Reply to this [25/02/2025 09:18:01]
Eli

Bruh, Articuno had a 2.833% chance and it took 401 ultra balls before I gave up and used a master ball.
I had a 99.999% chance of catching him by then

» Reply to this [19/02/2025 09:50:00]

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