Playing a Pokemon fan game or ROM hack? Enter a custom Pokemon here and it will be added to the list, so you can work out catch chances for Fakemon and other species that don't appear in the official games.
Catch rate is the species' base capture rate (1-255). Weight is only used by the Heavy Ball, Water/Bug enables the Net Ball bonus, and Moon Stone family enables the Moon Ball bonus. Re-using a name updates that entry instead of adding another. Your Pokemon are saved in this browser only — use Export to copy a code you can Import on another device.
This calculator estimates your chance of catching a wild Pokemon in the Generation 3 and 4 games. Enter the Pokemon, how much HP it has left, its status, and any conditions for the special Poke Balls. Chances are based on the Pokemon's remaining HP percentage.Supported games: Ruby, Sapphire, Emerald, FireRed, LeafGreen (Gen 3) · Diamond, Pearl, Platinum, HeartGold, SoulSilver (Gen 4)