Fire Emblem Fates Calculator

Optimize your unit growths and simulate child inheritance for the ultimate strategic advantage.

Base Unit & Class Growths

Second Parent Growths

What is the Fire Emblem Fates Calculator?

The fire emblem fates calculator is a specialized tool designed for players of the Nintendo 3DS titles *Fire Emblem Fates: Conquest*, *Birthright*, and *Revelation*. This calculator helps strategists determine the exact percentage chance a unit has of increasing specific attributes—such as Strength, Speed, or Defense—every time they level up.

In Fire Emblem Fates, character progression is not fixed. Each character possesses internal “Base Growth Rates.” When a character is assigned a class (like Cavalier or Mage), that class adds its own “Class Growth Rates” to the base. For advanced players, using a fire emblem fates calculator is essential for deciding which class path maximizes a unit’s potential, ensuring that your front-line tanks have enough Defense and your assassins have the Speed required to double-attack enemies.

One common misconception is that growth rates are the only thing that matters. While growth rates dictate long-term potential, base stats and stat caps are equally important in the late game. A fire emblem fates calculator allows you to bridge the gap between early-game growth and end-game viability.

Fire Emblem Fates Calculator Formula and Mathematical Explanation

The math behind the fire emblem fates calculator depends on whether you are calculating for a first-generation unit or a second-generation “child” unit. The game uses a simple additive system for standard units and an averaging system for children.

Standard Unit Formula:

Total Growth = Unit Base Growth + Class Growth Modifier

Child Unit Formula:

Child Total Growth = ((Parent 1 Growth + Parent 2 Growth + Child Base Growth) / 3) + Class Growth

Variable	Meaning	Unit	Typical Range
Base Growth	Character’s inherent chance to grow	Percentage (%)	5% – 75%
Class Modifier	Added growth from current job	Percentage (%)	0% – 25%
Stat Cap	Maximum value a stat can reach	Integer	20 – 60

Practical Examples (Real-World Use Cases)

Example 1: Xander in the Paladin Class
Using the fire emblem fates calculator, let’s look at Xander. Xander has a base Strength growth of 45%. The Paladin class provides a 15% Strength growth modifier.
Calculation: 45% (Base) + 15% (Class) = 60%.
This means every time Xander levels up, there is a 60% chance his Strength will increase by 1 point.

Example 2: Sophie (Silas’s Daughter)
If Silas (Parent 1) has a 45% Str growth and the Mother (Parent 2, e.g., Hinoka) has a 45% Str growth, and Sophie’s own base is 35%:
Calculation: ((45 + 45 + 35) / 3) = 41.6%. If she is a Cavalier (+15% Str), her final growth is 56.6%. The fire emblem fates calculator makes these multi-step averages instantaneous.

How to Use This Fire Emblem Fates Calculator

1. Select Mode: Choose “Growth Rate” for standard units or “Child Unit” for inheritance simulations.
2. Input Base Rates: Enter the unit’s base growth rates (found in-game or on wikis).
3. Select Class: Use the dropdown or enter custom class modifiers to see how switching jobs affects your percentages.
4. Review Results: The fire emblem fates calculator will update the bar chart and table in real-time.
5. Optimize: Adjust the inputs to find the “sweet spot” for Speed or Luck to avoid enemy critical hits.

Key Factors That Affect Fire Emblem Fates Calculator Results

• Class Modifiers: Changing from a Knight to a Swordmaster drastically shifts growth from Defense to Speed.
• Parentage (Inheritance): In Fates, the mother (or father for certain units) determines the secondary growth rates for child units.
• Boon and Bane: The Avatar (Corrin) has a custom growth set determined by the chosen “Asset” and “Flaw” at the start of the game.
• Eternal Seals: While they don’t change growth rates, they allow for more level-ups, making high growth rates even more valuable over time.
• Aptitude Skill: The skill “Aptitude” (common on units like Mozu) adds a flat +10% to all growth rates, which the fire emblem fates calculator must account for.
• Difficulty Level: While RNG (Random Number Generation) determines the actual stat up, the percentages remains the same across Lunatic or Normal modes, though Lunatic uses a fixed seed.

Frequently Asked Questions (FAQ)

1. Does a 100% growth rate guarantee two points?

No, in Fire Emblem Fates, a 100% growth rate means you are guaranteed exactly 1 point. Only rates exceeding 100% (rarely possible without mods) would guarantee more.

2. How do I calculate Corrin’s growths in the fire emblem fates calculator?

You must add the modifiers for your chosen Asset (Boon) and Flaw (Bane) to Corrin’s base rates before adding the class modifier.

3. Do stat boosters like Energy Drops affect growth rates?

No, stat boosters increase the current stat value but do not change the future percentage chance of gaining stats via the fire emblem fates calculator logic.

4. Why is my unit not gaining stats despite high growths?

This is likely due to “RNG screwage.” Even with a 70% growth, there is a 30% chance of gaining nothing. The fire emblem fates calculator provides the probability, not a guarantee.

5. Does the fire emblem fates calculator work for all three paths?

Yes, the growth mechanics are identical for Conquest, Birthright, and Revelation.

6. What are the best classes for growth?

Generally, specialized classes like Swordmaster (Speed) or General (Defense) offer the highest specific modifiers.

7. Can I change a child’s growth rates after they are recruited?

Only by changing their class. Their inherited base growth rates are fixed once the Paralogue is started.

8. How does the “Aptitude” skill factor in?

Simply add 10 to every base growth rate value in the fire emblem fates calculator to see the impact of Aptitude.