This calculator will tell you the chance of capturing a Pokemon in Pokemon Red, Green, Blue, Yellow, Gold, Silver and Crystal. A range will be given if the HP IV would effect the capture chance. Note: The gen 2 calculation glitches when encountering excessively high hp values for wild pokemon (ex: level 100 Blissey), I will display ??% in those situations.Supported games: Red, Green, Blue, Yellow (Gen 1) · Gold, Silver, Crystal (Gen 2)