MapleStory/Formulas

The sections of this article detail various formulas and tables within the game.

Please keep the following in mind when calculating:
 * Any decimal that appears within the formula's output is truncated, not rounded (i.e. 96.12 and 96.736 Damage will both be effectively 96). This is important when weighing WA versus Stats.
 * Mastery is a decimal. If you do not have any mastery skill, use "0.1". If you have a mastery skill, input it as a decimal (such as "0.3").

Damage

 * Max
 * Min

Defense

 * Weapon Defense: $$ STR \times 1.2 + (DEX + LUK) \times 0.5 + INT \times 0.4 + Equip DEF $$
 * Magic Defense: $$ INT \times 1.2 + (DEX + LUK) \times 0.5 + STR \times 0.4 + Equip M.DEF$$

Accuracy (Hit rate)

 * Weapon
 * Magic


 * Sqrt.(your accuracy) - Sqrt.(mob avoidability) = value A

For every level you are below the mob you are attacking, subtract 5 from value A. The number you are left with is your hit %.

The old formula for hit rate was:


 * (55 + (2 X level difference)) X accuracy / mob avoidability

Although accuracy becomes much less important after the update, it is obtained in greater quantities. After the big bang physical and magical accuracy is calculated in the following formula:


 * physical accuracy = (Dex X 1.2) + Luk + equips
 * Old physical accuracy formula = (Dex X .8) + (Luk X .5) + equips
 * Magical accuracy = (Luk X 1.2) + Int

This new formula will make accuracy much less significant then before, for example...
 * before BB update : a warrior with 100 DEX, and 4 LUK + 10 accuracy from equips + 20 mastery accuracy = 112 accuracy
 * after BB update : a warrior with 100 DEX, and 4 LUK + 10% accuracy from equips + 60 mastery accuracy = 202.4 accuracy

A level 100 warrior, and a level 100 bowman are going to fight Zakum whom is level 110 (previously 140) and has 144 avoidability. The warrior has 9 accuracy and the bowman has 400 accuracy which means


 * warrior hit rate = Sqrt. 9 - Sqrt. 144 - (5 X 10) + 100 =41%
 * Bowman hit rate = Sqrt. 400 - Sqrt. 144 - (5 X 10) + 100 =58%


 * So the extra 391 accuracy only gives an extra 17% hit rate in this scenario
 * As you can imagine, a cygnus knight is going to have a lot of trouble at high level bosses such as horned tail, pink bean being entirely impossible.

Avoidability

 * Weapon
 * Magic

Physical avoidability:(Luk. X 2) + Dex

Magical avoidability: (Luk. X 2) + Int

Magicians

 * MAG is Magic Rating, not Magic Attack. Magic Rating = INT + Magic Attack.

Experience
To calculate the Cumulative EXP for a level, add the EXP to level value and the Cumulative EXP value of the previous level. For example, to calculate level three's Cumulative EXP (49), add both level two's EXP to level (34) and Cumulative EXP values (15).

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