CK3 perk planner
Click perks to plan a character's lifestyles. A perk you pick brings the perks it needs; removing one removes what depends on it. The summary counts perk points and the experience and years they take at the game's base rate, or with an education bonus. The address bar keeps your plan — copy it to share.
Perk effects are on the lifestyle tree pages.
Source: game/common/lifestyles (experience per perk point xp_per_level, monthly base_xp_gain), game/common/lifestyle_perks (positions and parent links) and education traits in game/common/traits, Crusader Kings III 1.20.0.3. Years = perks × experience per perk ÷ (base monthly experience × (1 + bonus)) ÷ 12.