Headbutt Calculator
Each tree is permanently classified as good or bad based on your Trainer ID and the tree's coordinates. Good trees can produce rare encounters; bad trees cannot. Enter your Trainer ID below to see a visual map of tree quality.
Headbutt trees are permanently classified as "good" or "bad" based on your Trainer ID and the tree's X/Y coordinates - this classification never changes for your save file. Good trees can spawn rare Pokémon like Heracross and Aipom, while bad trees only produce common encounters like Spearow and Hoothoot.
Only about 10% of trees are "good," so finding them is crucial for completing your Pokédex or hunting rare species. This calculator shows you exactly which trees are good for your specific Trainer ID, saving hours of trial-and-error. Once you've identified good trees, mark them in-game and return frequently - the encounter tables refresh each time you headbutt.