SMT 5 Vengeance Fusion Calculator – Accurate & Easy


smt 5 vengeance fusion calculator

An expert tool for calculating Dyad Fusions in Shin Megami Tensei V: Vengeance.


Select the first demon to fuse.


Select the second demon to fuse.

Fusion Result

Select two demons to see the result.


Level Comparison Chart: Input Demons vs. Fused Result

What is the SMT 5 Vengeance Fusion Calculator?

The smt 5 vengeance fusion calculator is an essential tool for players of Shin Megami Tensei V: Vengeance. Demon fusion is a core mechanic where you combine two or more demons in your party to create a new, often more powerful, one. This process is not random; it follows a complex set of rules based on the race and base level of the parent demons. Our calculator simplifies this by predicting the exact outcome of a “Dyad Fusion” (a fusion of two demons), saving you time and valuable in-game currency (Macca).

This tool is for anyone looking to optimize their demon roster, complete the demon compendium, or create specific demons with inherited skills. Instead of trial and error in the World of Shadows, you can plan your fusions strategically. To learn more about advanced strategies, you might want to read a SMT V Essence Fusion Guide.

The SMT V Fusion Formula and Explanation

Standard demon fusion, or Dyad Fusion, follows a predictable two-step formula. Understanding this is key to mastering team building. The smt 5 vengeance fusion calculator automates this for you, but here’s how it works behind the scenes.

  1. Determine the Result Race: The races of the two demons being fused determine the race of the resulting demon. This is governed by a fixed “Fusion Chart” specific to the game. For example, fusing a ‘Fairy’ race demon with a ‘Beast’ race demon will always result in a ‘Jirae’ race demon.
  2. Calculate the Result Level: The base level of the new demon is calculated with the following formula:

    Resulting Base Level = floor( (Demon 1 Base Level + Demon 2 Base Level) / 2 ) + 1

The game then finds the demon of the target race with the lowest base level that is greater than or equal to the ‘Resulting Base Level’. That demon is your fusion result.

Variables Table

Fusion formula variables and their typical ranges.
Variable Meaning Unit Typical Range
Demon 1/2 Base Level The innate, starting level of the demon. Level 1 – 99
Resulting Base Level The calculated midpoint level used to find the result. Level 2 – 100
Demon Race The family or tribe of the demon (e.g., Fairy, Dragon, Vile). N/A (Categorical) Approx. 30+ unique races

Practical Fusion Examples

Let’s see the formula in action with two realistic examples that our smt 5 vengeance fusion calculator can perform.

Example 1: Fusing Pixie and Cait Sith

  • Inputs:
    • Demon 1: Pixie (Race: Fairy, Level: 2)
    • Demon 2: Cait Sith (Race: Beast, Level: 6)
  • Calculation:
    • Resulting Race: Fairy + Beast = Jirae
    • Base Level = floor((2 + 6) / 2) + 1 = 5
  • Result: The calculator searches for the lowest-level ‘Jirae’ demon at or above level 5. This results in Kodama (Jirae, Level 8).

Example 2: Fusing Angel and Apsaras

  • Inputs:
    • Demon 1: Angel (Race: Divine, Level: 10)
    • Demon 2: Apsaras (Race: Nymph, Level: 13)
  • Calculation:
    • Resulting Race: Divine + Nymph = Avian
    • Base Level = floor((10 + 13) / 2) + 1 = 12
  • Result: The calculator searches for the lowest-level ‘Avian’ demon at or above level 12. This results in Itsumade (Avian, Level 19). For tips on finding rare demons, check our guide on the SMT V Demon Compendium.

How to Use This SMT 5 Vengeance Fusion Calculator

Using this tool is straightforward and designed to give you instant, accurate results.

Step Action Details
1 Select Demon 1 Use the first dropdown menu to choose the first demon you want to fuse. The list is sorted alphabetically.
2 Select Demon 2 Use the second dropdown to choose the second demon. The calculator will update automatically.
3 Interpret the Results The “Fusion Result” box will display the name of the created demon. It also shows the intermediate values: the resulting race and the calculated base level, which are crucial for understanding the outcome.
4 Analyze the Chart The bar chart below the calculator visually compares the levels of the two demons you selected against the level of the final fused demon.
5 Reset or Copy Use the “Reset” button to clear your selections. Use the “Copy Results” button to save the fusion recipe to your clipboard.

Key Factors That Affect SMT V Fusion

While the standard formula is reliable, several other factors can influence fusion outcomes in Shin Megami Tensei V: Vengeance.

  • Special Fusions: Some powerful demons can only be created through a specific, unique combination of 2, 3, or even 4 demons. These recipes override the standard fusion formula. For example, fusing Jack Frost, Jack-o’-Lantern, and Berith creates King Frost.
  • Same-Race Fusions: Fusing two demons of the same race doesn’t use the standard chart. Instead, it typically results in a “rank down” fusion, producing the next-lowest-level demon of that same race.
  • Player Level: You cannot fuse a demon whose base level is higher than your protagonist’s current level. The fusion will be blocked until you level up.
  • Compendium Completion: Having more demons registered in your Compendium gives you more options for fusion, especially with Reverse Compendium Fusion. See our tips on Miracle Farming Locations to help complete it faster.
  • Fusion Accidents: There is a small, random chance that any normal fusion will fail and result in a different, often rare, demon. The likelihood of an accident can be influenced by certain in-game conditions.
  • Unlocked Demons: Some demons, particularly high-level ones, only become available to fuse after defeating them in battle or completing specific subquests.

Frequently Asked Questions (FAQ)

1. Why is a fusion combination not working in the game?

The most common reason is that your protagonist’s level is too low. You cannot fuse a demon that is a higher level than you. Another reason could be that it’s a special fusion requiring more than two demons, which this smt 5 vengeance fusion calculator does not handle.

2. What do the units like “Level” and “Race” mean?

“Level” is a unitless number representing a demon’s power and experience. “Race” is a categorical label for a demon’s family, which determines fusion compatibility.

3. How does this calculator handle special fusions?

This calculator focuses on Dyad (two-demon) Fusion. It includes a database of special fusions that only require two parents. For fusions requiring three or more demons, you will need to discover those specific recipes in-game.

4. What happens when I fuse two demons of the same race?

This results in a “rank-down” fusion. The result is the next demon of the same race with a lower base level than the lowest-level ingredient demon.

5. Is there a way to influence skill inheritance?

Yes, but it’s complex. Demons have affinities for certain skill types (e.g., Fire, Ice, Physical). They are more likely to inherit skills that match their affinities. While this calculator focuses on the resulting demon, you can use it to find parents that have the skills you want to pass down. Learning more about this is part of our Advanced Fusion Tactics guide.

6. What is a “Fusion Accident”?

It’s a random event where a fusion fails and produces an unexpected demon. Some rare demons can only be obtained through accidents.

7. Does the moon phase affect fusion?

In Shin Megami Tensei V, the moon phase primarily affects the chance of a fusion accident. A full moon slightly increases the accident rate.

8. Can I reverse a fusion?

No, once a fusion is complete, it cannot be undone. However, you can re-summon the parent demons from the Compendium if you have them registered.

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