Morrowind Spellmaking & Casting Chance Calculator
Spellmaking
Compute Magicka costs, casting chance percentages, and spellmaker barter pricing across all magic schools.
Spellcraft Configuration
Spellmaking Output & Barter
Choose an effect to see its Magicka cost, your chance to cast it and what spellmakers charge.
How this is calculated
Each effect adds to the spell's Magicka cost. Stronger effects, longer durations and wider areas cost more. Target range costs 1.5 times as much as Self or Touch.
Magicka Cost: ⌊∑ ((Min + Max) × Duration + Area) × BaseCost × 0.05⌋. Min and Max are effect strength, Duration is seconds, Area is feet, and BaseCost is the effect's base cost. ∑ means add the effects together; ⌊ ⌋ means round down.
The most expensive effect determines which magic school the calculator uses. Your skill in that school, Willpower, Luck and fatigue determine the chance of casting the spell.
Cast chance: (2×Skill + Willpower/5 + Luck/10 − MagickaCost) × Fatigue. The fatigue multiplier ranges from 1.25 when fully rested to 0.75 when exhausted. This estimate assumes full fatigue.