What the Damage Calculator for FE Heroes Does
The Damage Calculator for FE Heroes predicts combat outcomes using the game’s core formulas. It combines unit data, weapon tables, skills, terrain, and stats to estimate damage, accuracy, and combat results. This explanation covers how calculations work, what inputs matter, and how to use them effectively. It focuses on evergreen mechanics rather than event-specific changes or short-term content.
Core Formula and Damage Types
Basic Damage Equation
Damage in Fire Empezinary (FE) Heroes follows a consistent structure derived from the Fire Emblem series. The core formula accounts for Attack, Defense, weapon might, bonuses, and resistance penalties. In most cases, damage is capped between 1 and 999. The most commonly used equation is:
(ATK × Weapon Might × Skill/Weapon/Stat Bonuses − Defense) × Weakness Multiplier × Terrain/Other Modifiers
Separate calculations handle magical and Brave damage, with magic using Magic or Resistance in place of Defense and weapon might scaling per tome type. Each weapon type has unique hit, crit, and weight properties that affect outcomes.
Hit, Critical, and Accuracy
Accuracy determines whether an attack hits. It compares the attacker’s Hit with the defender’s Avoid, modified by terrain, weather, skills, and weapon weight. Critical chance depends on the weapon’s crit rate and the attacker’s Critical stat, while luck can reduce crit likelihood for the defender. Doubles and effective weapon triangles further raise damage output when conditions align.
Key Stats and How They Affect Damage
Four core stats drive most damage outputs: Attack, Defense, Resistance, and Speed. Attack scales directly with physical and magical damage. Defense and Resistance reduce incoming damage. Speed influences follow-up attack chances and, in some versions, double-attack thresholds. Other stats, such as Luck and Strength, play supporting roles in crit reduction and weight calculations.
| Stat | Role in Damage Calculation | Common Source |
|---|---|---|
| Attack | Scales damage output | Class, weapon, bond, items |
| Defense | Reduces physical damage taken | Class, shield, bond, items |
| Resistance | Reduces magical damage taken | Class, staff, bond, items |
| Speed | Determines follow-up and double-attack thresholds | Class, weapon, bond, items |
| Luck | Reduces enemy crit, aids avoid | Seal, bond, items |
Weapon Tables and Might Variance
Weapons include base might, hit, weight, crit, and special effects. Some weapons add might under conditions (e.g., sun-to-hit, follow-up bonuses). Others provide defensive bonuses or penalties to opponent stats. Might variance in the series can adjust final damage by a small random range, usually ±1. Calculators typically show a damage range to reflect this variability. Certain conditions, such as sun or moon, scale might to change outcomes in predictable ways.
Skills, Bond, and Other Modifiers
Skills can scale damage, grant bonuses in certain conditions, or change accuracy. Bond often provides flat stat boosts that feed directly into damage equations. Items may supply additional might, stat bonuses, or activate on-hit effects. Terrain can boost or reduce damage and accuracy, while weather can apply further multipliers. Resistances from skills, items, or terrain reduce magical damage and can be included in the calculation pipeline.
Using the Damage Calculator Effectively
To use a Damage Calculator for FE Heroes, input the attacker and defender units, equipped weapons, active skills, bond levels, terrain, and any weather effects. Select whether to include critical checks and whether to account for variance. Review outputs that include expected damage ranges, accuracy percentage, and combat result probabilities. Compare multiple scenarios to identify optimal weapons, skill builds, and positioning strategies while factoring in risk and reward trade-offs.
Practical Steps for Accurate Simulations
- Confirm unit levels, growths, and IVs/EVs where applicable.
- Enter equipped weapons, noting special effects and might variance.
- Add bond bonuses, skill effects, and item modifiers.
- Set terrain, weather, and any seal conditions.
- Run simulations with and without crit to compare outcomes.
Limitations and Best Practices
Calculators rely on known formulas and assumptions. Updates to game mechanics, clarification patches, or unrevealed details can change results over time. Critical and avoid tools that promise exact outcomes without clarifying their assumptions. Include margin for random variance, and treat results as informed estimates rather than guarantees. Verify findings with in-game tests when stakes are high.