Lost Ark Crit Rate Calculator
None (0%)
Standard (10%)
Enhanced (18% – GS/DE/Striker)
Double Synergy (20%)
None
Level 1 (5%)
Level 2 (10%)
Level 3 (15%)
None / Non-Crit Set
Entropy Level 1 (17%)
Entropy Level 2 (20%)
Entropy Level 3 (22%)
Hallucination Level 1 (15%)
Hallucination Level 2 (20%)
Hallucination Level 3 (28%)
No
Yes (20%)
Total Effective Crit Rate:
0.00%
Mastering Your Crit Rate in Lost Ark
In Lost Ark, Crit Rate is a fundamental combat metric that determines how often your skills land critical strikes, dealing significantly more damage. For classes using the Entropy gear set or those with high Crit Damage modifiers (like Keener Blunt Weapon), maximizing crit uptime is the difference between mediocre and MVP-level performance.
How the Calculation Works
Your total Crit Rate is an additive sum of several distinct sources:
- Combat Stat (Crit): Every point of the Crit stat provides approximately 0.0357% Crit Rate. For example, 1000 Crit equals 35.7%.
- Engravings: Adrenaline is the most common source, providing up to 15% at Level 3. Precise Dagger provides a flat 20% but comes with a Crit Damage penalty.
- Gear Sets: The Entropy set (back/front attackers) and Hallucination set (non-positional) provide massive flat bonuses to Crit Rate based on their upgrade level (Level 1, 2, or 3).
- Party Synergies: Certain classes (like Gunslingers, Deadeyes, and Strikers) provide 10% or 18% crit resistance reduction on enemies, which effectively acts as a flat crit bonus for you.
Optimal Crit Rate Targets
While 100% Crit Rate sounds ideal, it is often not the most efficient build. Most players aim for a "sweet spot" based on their engravings:
- Keener Blunt Weapon Users: Generally require at least 60-70% Crit Rate to make the engraving mathematically superior to other options.
- Entropy Classes: Often aim for 80% or higher because their damage is heavily back-loaded into massive critical hits.
- Burst Classes: Classes like Igniter Sorceress or Punisher Slayer rely on specific windows where their built-in buffs provide extra crit, so their "standing" crit may be lower.
Realistic Example (Slayer):
Crit Stat: 500 (~17.85%)
Adrenaline Level 3: 15%
Entropy Level 3: 22%
Back Attack Bonus: 10%
Party Synergy: 10%
Total: 74.85% Crit Rate
Crit Stat: 500 (~17.85%)
Adrenaline Level 3: 15%
Entropy Level 3: 22%
Back Attack Bonus: 10%
Party Synergy: 10%
Total: 74.85% Crit Rate
A Note on Back/Front Attacks
Remember that landing a Back Attack or Front Attack grants an inherent 10% Crit Rate bonus. This is NOT reflected in your character profile (P) but is calculated during the hit. Our calculator allows you to add this via the "Skill Tripods / Buffs" or "Other" field if you want to see your situational maximum.