Equations

note: When dividing, round down. ability modifier = (ability score - 10) / 2 initiative = dex modifier max hp at level 1 = hit die + con modifier proficiency bonus = 2 + (level - 1) / 4 _ proficiency = 2 x proficiency bonus if expert in _ proficiency bonus if proficient in _ otherwise 0 skill modifier = corresponding ability modifier + skill proficiency passive perception = 10 + perception modifier saving throw modifier = corresponding ability modifier + saving throw proficiency melee attack bonus = str modifier + weapon proficiency finesse attack bonus = max(str modifier, dex modifier) + weapon proficiency ranged attack bonus = dex modifier + weapon proficiency melee attack damage = str modifier + weapon damage finesse attack damage = max(str modifier, dex modifier) + weapon damage ranged attack damage = dex modifier + weapon damage armor class if you are not wearing armor, start with 10 otherwise start with the armor class of the armor you're wearing if you are wearing light armor, add your dex modifier if you are wearing medium armor, add min(dex modifier, 2) if you are using a shield, add 2 spell attack bonus = spellcasting ability modifier + proficiency bonus spell save dc = 8 + spell attack bonus