Calculator
Damage estimator
traditional MapleStory damage math with weapon-type multipliers, mastery scaling, and defense reduction. Pick a target mob to auto-populate its defenses.
Your setup
Target
Damage
After target defense
Note: traditional MapleStory damage formulas are community- reverse-engineered; expect +/- 5-10% variance vs in-game numbers until the CoT 2 verification pass is done. Great for build planning, not min-maxing to the point.
How this is calculated
Physical: Max = ((Primary * mult) + Secondary) * WA / 100, then * SkillDmg%. Min = Max * ((Mastery * 0.9 + 10) / 100). Post-def = max(1, dmg - (PDef * 0.5)).
Magic: Max = (MATT^2 / 1000) + MATT + (INT * Skill%/100). Same mastery-derived min bound. Post-def uses MDef * 0.6 reduction.
Weapon multipliers per type: 1H sword 4.0, 2H sword 4.6, 1H axe 4.4, 2H axe 4.8, polearm 5.0, spear 3.0, dagger 4.0, claw 3.6, bow 3.4, crossbow 3.6.