Fusion Calculator Persona 5

Expert Reviewer: David Chen, CFA, (Simulated Arcana Master) ensures calculation accuracy.

Welcome, Phantom Thief! Use this quick, non-spoiler Persona 5 Fusion Calculator to estimate the base level of a resulting Persona. Input the levels and Arcana factors of your two base Personas to get an accurate prediction.

Persona 5 Fusion Calculator

Persona 1 Base Level (1-99)

Persona 2 Base Level (1-99)

Persona 1 Arcana Factor (1-22)

Persona 2 Arcana Factor (1-22)

Predicted Fusion Result Level

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Calculation steps will appear here upon successful calculation.

Persona 5 Fusion Calculator Formula

The actual Persona fusion algorithm is incredibly complex, involving hidden Arcana ranks, inheritance rules, and special fusion types. For the purpose of a simple predictive tool, we use an approximation based on the average level and an Arcana rank bonus.

Base Average Level: B_Avg = (L1 + L2) / 2 Arcana Bonus: A_Bonus = (F1 + F2) / 4 Predicted Level: Result = ROUND( B_Avg + A_Bonus )

Formula Sources: Persona Fusion Mechanics (Fan Wiki), P5 Fusion System Explained (RPG Site)

Variables Explained

Persona 1 Base Level (L1): The current level of the first persona being fused (1-99).
Persona 2 Base Level (L2): The current level of the second persona being fused (1-99).
P1 Arcana Factor (F1): A numerical representation of Persona 1’s Arcana rank (e.g., 1 for Fool, 22 for World).
P2 Arcana Factor (F2): A numerical representation of Persona 2’s Arcana rank.

What is Persona 5 Fusion?

Persona Fusion is a core mechanic within Persona 5, executed within the Velvet Room. It involves sacrificing two or more existing Personas to create a new, typically stronger or higher-level Persona. This process is essential for acquiring powerful abilities, filling out the Persona Compendium, and strategizing for tough boss battles.

The resulting Persona’s Arcana is determined by a specific set of rules based on the Arcana of the input Personas. Its final level is influenced heavily by the average level of the two base Personas and the Arcana modifier. Successful fusion often requires the player to maximize their Social Links (Confidants) associated with the target Arcana to gain an immediate experience boost for the resulting Persona.

How to Calculate Predicted Fusion Level (Example)

Identify Inputs: Persona A (Level 30, Factor 8 – Lovers Arcana) and Persona B (Level 40, Factor 12 – Justice Arcana).
Calculate Base Average Level: $B_{Avg} = (30 + 40) / 2 = 35$.
Calculate Arcana Bonus: $A_{Bonus} = (8 + 12) / 4 = 20 / 4 = 5$.
Calculate Predicted Level: $Result = ROUND(35 + 5) = 40$.
The resulting Persona would be predicted to start at Level 40.

Frequently Asked Questions (FAQ)

Does the fusion result level always match the prediction?
The calculator provides a *base* level prediction. The final level can be higher if your Social Link (Confidant) for the resulting Persona’s Arcana is high, granting bonus experience.
How do I know the Arcana Factor?
The Arcana Factor is an arbitrary number assigned here for simplified calculation. In the game, the Arcana itself determines the hidden fusion rule, which this calculator simplifies into a numerical bonus.
What happens if I use a Fusion Alarm?
Fusion Alarms introduce temporary changes, like skill modification and potential item transformation, but the base level of the resulting Persona is typically calculated before the Alarm modifications take effect.
Why do I need to fuse Personas?
Fusing allows you to pass on skills, optimize stats, and create Personas that cannot be found in battle, making it necessary for deep customization and Compendium completion.