Project Alfheim Ragnarok Online Calc

A Ragnarok Online Classic (pre-Renewal) calculator for the server Project Alfheim, updated by tnab, able to simulate characters in PvM, PvP and MvP environments.
Report bugs and suggestions through Discord to: tnaab


Notes:
This calculator is a pure "copy" of rocalc, which was being updated by kurimet.
He gave me permission to download and modify rocalc to fit the changes done on Alfheim.
Reminder that the calculator is not 100% accurate to the results in-game. Use it as a guideline, but to test accurately, use the test server.
This was not made in collaboration with any GM's from Alfheim, so don't bug them if there's any errors.

(A) Changelog 2026-01-10
• Fixed First Wind, Occult Impaction, and Asura Strike's damage being incorrect when used by a monster.
• Fixed Shield Chain not piercing DEF when used by a monster.
• Added Effligo and Floral Flare Road to Royal Druid's list of skills.
• Added Arbitrium and Thunder Cloud to Corrupted Bishop's list of skills.
• Added Holy Judgement to Royal Clergy's list of skills.
• Added Snow Storm to Little Demon's list of skills.
• Added Varetyr Spear to Charge Basilisk's list of skills.
• Added Venom Swamp to Polluted Spider Queen's list of skills.
• Fixed Polluted Spider Queen having Dark Breath instead of Acid Breath in list of skills.
• Added NPC Thunder Storm, Hell's Judgement, Dark Soul Strike, Heaven's Drive, Sonic Blow, and Venom Fog to Root of Corruption's list of skills.

(A) Changelog 2026-01-07
• Fixed Poison Bottle giving 20% ASPD instead of 25% for Assassin Cross.

(A) Changelog 2026-01-05
• Fixed Small/Big Defense Potion giving DEF instead of multiplicative physical damage reduction.
• Fixed Small/Big Magic Defense Potion giving MDEF instead of multiplicative magical damage reduction.
• Replaced Halo-Halo with Abrasive under "Food / Speed Potions / other Items"
• Fixed Guarana Candy giving AGI from old Lv. 5 Increase AGI.

(A) Changelog 2025-12-26
• Reverberation cooldown removed.
• Reverberation ATK ratio reduced from 200 + 100 * skillLV -> 100 + 65 * skillLV.
• Fixed Amdarais, Enraged Amdarais, Phantom Amdarais, and Himmelmez damage reduction.
  • It is no longer a % damage reduction, but instead ignoring DEF/MDEF ignore and pierce.
• Added Himmelmez 300k HP to the monster list which has the stats of Himmelmez when she hits 300k HP.

(A) Changelog 2025-12-17
• DEF and MDEF can no longer go below 0 through DEF and MDEF pierce.

(A) Changelog 2025-10-30
• Added "ME Combo" under "Debuffs on Enemy" which increases Holy Light bonus to 20%, and increases Judex bonus damage on Demon/Undead MVPs to 200%.
• Changed HP of Bloody Wraith from 80000 -> 120000.
• Changed HP of Standing Soul from 75000 -> 105000.
• Changed HP of Dark Priest from 70000 -> 110000.
• Changed Base EXP of Diligent Ants from ~75000 -> 19500.
• Changed Job EXP of Diligent Ants from ~60000 -> 15600.
• Fixed minor rounding issue on ASPD calculation.

[Read all previous changelogs]

OPTIONS

Calc's theme:
RO server:
Equipment job restrictions (this will clear equip, cards, and stats)
Equipment Level restrictions
Equipment slot restrictions
Equipment Card slot restrictions
All Cards everywhere (with bugs)
Increase ASPD cap to 193

(icon)Save & Load

(Local Saves are located in your device, just like cookies)


(icon)Your Character

Stats ( remaining Status Points: 48 )
Base Lvl (auto-adjust)
Job Lvl
Class
Adopted
Race & Size Demi-Human & Medium
Body Element Neutral1
STR + 0
AGI + 0
VIT + 0
INT + 0
DEX + 0
LUK + 0
Max HP 40 DEF 0+1 HIT 2
Max SP 11 MDEF 0+1 Perfect Hit 0
HP Regen 1 Real MDEF 0+1 Critical 1
SP Regen 1 ATK 1+0 Critical Shield 1.2
ASPD 150.3 Real ATK 1~1 Flee 2
Mov. Speed 100 % MATK 1~1 WOE Flee 1
Perfect Dodge 1.1
Equipment & Cards
Weapon:
Refine:
Attribute:
Shadow Weapon
 
(no weapon) [0]
(click to show/hide)
ATK: 0 Weapon Lvl: 1 Req. Lvl: 0 Weight: 0
Other Info
Additional Enchants & Manual Edits on Player
(click to show)

(icon)Buffs, Items and other stuff

Passive & Self-casted Skills
Supportive / Party Skills
(click to show)
Food / Speed Potions / other Items
(click to show)
Guild Skills
(click to show)
Music and Dance Skills
(click to show)
Miscellaneous Effects on Player
(click to show)
Additional Effects
(click to show)

(icon)Combat Simulator

Place: Sort:
Enemy:
Level Max HP 1 BaseExp 1
AGI 0 ATK 1~1 JobExp 1
VIT 0 DEF 0 + 0 Race Demi-Human
INT 0 MDEF 0 + 0 Element Neutral1
DEX 0 100% Hit 21 Size Medium
LUK 0 95% Dodge 76 Type Normal
All Damage Skills
Player Attack Skills:
Player's Hit Ratio 81.2%
Attack Element Neutral (100% vs Neutral1)
Weapon/Skill Size Modifier 100% (Bare Hand vs Medium)
Critical damage (Critical rate) 1 (1.1%)
Minimum Damage 1
Average Damage 1
Maximum Damage 1
Time/Hit
 0.993 seconds
Damage Per Second 0.82
Minimum Number of Hits 1
Average Number of Hits 2
Maximum Number of Hits Infinite (no 100% hit)
Average Battle Duration 1.98 seconds
Enemy Attack Range:
Enemy Attack Skills:
Enemy Attack Element:
Player's Dodge Ratio 21.86%
Additional Dodge Ratio 0%
Enemy Attack Element Neutral (100% vs Neutral1)
Minimum Damage Received 1
Average Damage Received 1
Maximum Damage Received 1
Average Dmg Received (w/dodge) 0.78
Number of Enemies attacking you:
Minimum delay between Active Skills:
Ping to server: ms
Environment:
Defense Investment (custom): [WoE Zone only]

Debuffs on Enemy
(show)
Buffs on Enemy
(click to show)
Manual Edits on Enemy
(click to show)


Useful Links: [Xellie's Skill Tree Simulator for Alfheim]