Persona 3 FES Fusion Calculator - Forward and Reverse Lookup
Use the calculator when you know either the two source Personas or the target you want to build. The roster and normal-fusion rules are derived from an Apache-2.0 project and kept separate from Reload data.
On this page
Choose Forward Fusion for a two-Persona candidate result, or Reverse Lookup to list normal-fusion pairs for a target. Check the special-fusion note before spending a rare Persona.
- Game version
- Persona 3 FES
- Platform
- PlayStation 2
- Protagonist
- Male protagonist
- Page type
- tool
- Evidence status
- ready
Try the FES calculator
Persona 3 FES Fusion Calculator
Choose FES Personas to check a normal two-way result or reverse-search a target.
FES is kept separate from other releases. Skill inheritance, triangle fusion, item fusion and some special recipes need a separate check.
How to read a result
Forward Fusion uses the FES Arcana combination and source levels to choose a normal-fusion candidate from the FES roster. The tool does not predict inherited skills or random skill selection.
Reverse Lookup searches the normal two-way result rules. A target that is a special, item or max Social Link Persona may require a separate recipe and will not be represented by a normal pair.
- Use the FES version label as the first check.
- Confirm that both source Personas are available in your save.
- Treat special and triangle fusion as separate recipe types.
When the result does not match the Velvet Room
| Symptom | Likely reason | Next action |
|---|---|---|
| No result | The pair is a special or unsupported case | Open the target recipe notes and check the upstream data. |
| Different Persona | The source level or Arcana differs | Compare the exact source names and levels in your save. |
| Skill mismatch | Skill inheritance is random or selection-sensitive | Use the result for the Persona target, then choose skills in the Velvet Room. |
| Wrong version | A Reload or Portable result was used | Return to the FES page and remove the mixed-version source. |
Data attribution
Check the linked sources and their dates before using version-sensitive advice.