Genshin Impact Damage Calculator – Free DMG Simulator
Free Genshin Impact damage calculator to optimize your character builds instantly. Enter stats to get precise DMG output and team synergy results.
What is Genshin Impact Damage Calculator?
A Genshin Impact Damage Calculator is a specialized mathematical tool that simulates the complex damage formulas used in miHoYo's open-world action RPG, Genshin Impact. Instead of manually crunching numbers from character stats, artifact substats, weapon passives, and enemy resistances, this free online calculator processes dozens of variables in seconds to predict how much damage a specific attack, skill, or burst will deal. For players aiming to clear Spiral Abyss floors, optimize their main DPS characters, or compare artifact builds, this tool transforms guesswork into data-driven decision-making.
Hardcore theorycrafters, casual adventurers, and content creators alike rely on damage calculators to test hypothetical builds before investing precious Resin and Mora. By inputting a character's level, talent levels, weapon refinements, artifact main stats and substats, team resonance bonuses, and enemy levels, users can see exactly how changes like swapping a Crit Damage circlet for an Attack% one affect final damage numbers. This prevents wasted resources and accelerates progress toward hitting damage thresholds for bosses like Azhdaha or the weekly Raiden Shogun.
This free online tool requires no signup, no downloads, and no login. Simply enter your character's details, select your target enemy, and instantly receive a complete damage breakdown including raw damage, critical hit damage, elemental reaction damage, and damage after enemy defense and resistance calculations.
How to Use This Genshin Impact Damage Calculator
Using this calculator is straightforward, even if you are new to Genshin Impact's damage mechanics. The interface is divided into logical sections that mirror the game's stats screen. Follow these five steps to get your first accurate damage estimate in under two minutes.
- Select Your Character and Level: Choose the character you want to calculate damage for from the dropdown list. Enter their current character level (1-90) and their ascension phase. The calculator automatically loads base ATK, base HP, base DEF, and ascension stat values for every character as they exist in version 4.x. For example, selecting Hu Tao at level 90 with 6th ascension will populate her base 15552 HP and 106 base ATK.
- Input Talent Levels and Attack Type: Enter the talent level for the specific attack you want to calculate — Normal Attack, Elemental Skill, or Elemental Burst. Each talent has its own scaling multipliers which the calculator applies automatically. Then select the attack type: single hit, multi-hit, charged attack, plunging attack, or skill/burst initial hit. For characters like Ganyu, you can specify whether you want to calculate the bloom damage (Aimed Shot) or the initial frost flake hit.
- Add Weapon and Refinement Rank: Choose your equipped weapon from the extensive database. The calculator includes every 3-star, 4-star, and 5-star weapon with their base ATK, secondary stat type (Crit Rate, Crit DMG, ATK%, Energy Recharge, etc.), and passive effect. Enter the refinement rank (R1 through R5). For weapons like Staff of Homa, the passive effect that increases ATK based on Max HP is automatically calculated when you input your character's HP in the next step.
- Input Artifact Stats and Set Bonuses: This is the most critical section. Enter your artifact main stats for Flower (flat HP), Plume (flat ATK), Sands (ATK%, HP%, DEF%, EM, ER), Goblet (Elemental DMG Bonus, ATK%, Physical DMG Bonus), and Circlet (Crit Rate, Crit DMG, ATK%, Healing Bonus, Elemental Mastery). Then add your artifact substats — up to four substats per piece with their current values. Select which artifact set bonuses are active (e.g., 4-piece Crimson Witch of Flames, 2-piece Noblesse Oblige + 2-piece Gladiator's Finale). The calculator automatically applies set bonus effects like 15% Pyro DMG Bonus or 20% Burst DMG increase.
- Set Enemy Parameters and Reactions: Select the enemy type from a list of common foes (Hilichurl, Mitachurl, Ruin Guard, Abyss Herald, weekly boss, etc.) or manually enter enemy level (1-100) and resistance values. Specify if the enemy is affected by an elemental aura (Hydro, Pyro, Electro, Cryo) for reaction calculations. Then choose which elemental reaction you want to trigger: Vaporize, Melt, Overloaded, Superconduct, Electro-Charged, Swirl, Crystallize, or Bloom-related reactions. Enter your Elemental Mastery value and the calculator applies the reaction multiplier formula. Finally, click "Calculate Damage" to see the results.
For best accuracy, ensure your artifact substats are entered as they appear in-game (e.g., 6.2% Crit Rate, 12.4% Crit DMG). The calculator rounds to two decimal places to match in-game display. You can save your build by bookmarking the URL with your inputs encoded, or take a screenshot of the results page for sharing with friends.
Formula and Calculation Method
The damage formula used in this calculator is the same one reverse-engineered by the Genshin Impact theorycrafting community and verified through thousands of in-game tests. It accounts for every multiplicative factor that affects final damage, from base stats to enemy defense. Understanding this formula helps you interpret why certain stats matter more than others for your specific character.
Each variable in this formula represents a specific game mechanic that you control through character building, team composition, and combat strategy. Let's break down every component so you know exactly what your inputs mean.
Understanding the Variables
Base Damage is the sum of your character's base ATK (character level + weapon base ATK) plus flat ATK from artifacts (Feather main stat, substats, and set bonuses) plus any ATK conversion passives (like Hu Tao's E skill converting HP to ATK). For HP-scaling characters like Yelan or Nilou, the base damage uses Max HP instead of ATK. For DEF-scaling characters like Itto or Albedo, it uses Defense. The calculator automatically detects which stat your character scales with.
Skill Multiplier is the percentage value shown in your talent menu. For example, a level 10 Normal Attack for Diluc's first hit has a 177.3% multiplier. The calculator applies this as a decimal (1.773). For multi-hit attacks, it sums the multipliers of all hits in the sequence you select.
Total Damage Bonus% includes every additive damage modifier: Elemental DMG Bonus from Goblet (e.g., 46.6% Pyro DMG), weapon passives (e.g., 20% Elemental DMG from Lost Prayer to the Sacred Winds), artifact set bonuses (e.g., 15% Pyro DMG from Crimson Witch), talent passives (e.g., 15% bonus from Mona's Omen), and reaction bonuses (e.g., 25% from 4-piece Instructor set). This is additive, meaning 46.6% + 15% + 20% = 81.6% total bonus.
Crit Rate% × Crit DMG% represents the average damage increase from critical hits over many attacks. If you have 70% Crit Rate and 200% Crit DMG, the average multiplier is 1 + (0.70 × 2.00) = 2.40x. The calculator shows both raw non-crit damage and average damage including crits.
Defense Multiplier depends on your character level and the enemy level. The formula is (Character Level + 100) / ((Enemy Level + 100) + (Character Level + 100)). For a level 90 character against a level 90 enemy, this multiplier is 0.5 (50% damage reduction from defense). Against a level 100 enemy, it drops to approximately 0.487.
Resistance Multiplier starts from the enemy's innate resistance. Most enemies have 10% resistance to all elements, but bosses like the Primo Geovishap have 30% Geo resistance. The formula is: if resistance > 0, multiplier = 1 - (resistance/2) for resistance values between 0 and 0.75. For negative resistance (from Superconduct or Zhongli's shield), the multiplier becomes 1 + (resistance/2). For example, a Hilichurl with 10% Physical resistance takes 1 - (0.10/2) = 0.95x Physical damage. After Superconduct (-40% Physical res), it becomes 1 + (0.40/2) = 1.20x.
Reaction Multiplier applies only when triggering a transformative or amplifying reaction. For Vaporize and Melt, the multiplier is 1.5x or 2.0x depending on which element triggers (Pyro on Hydro = 1.5x, Hydro on Pyro = 2.0x, etc.), further increased by Elemental Mastery using the formula: 1 + (EM × 2.78) / (EM + 1400). For transformative reactions like Overloaded, the damage is based on character level and EM only, not ATK.
Step-by-Step Calculation
First, the calculator computes your character's effective ATK (or HP/DEF) by summing all flat and percentage-based sources. For example, if a character has 800 base ATK and 120% ATK from artifacts and weapon, total ATK = 800 × (1 + 1.20) + 311 (Feather) = 800 × 2.20 + 311 = 1760 + 311 = 2071 ATK. Next, it multiplies this by the skill multiplier — say a 200% burst multiplier gives 2071 × 2.00 = 4142 base damage. Then it applies the total damage bonus: if you have 80% Elemental DMG Bonus, the damage becomes 4142 × 1.80 = 7456. Then the crit average is applied: with 60% Crit Rate and 150% Crit DMG, average multiplier = 1 + (0.60 × 1.50) = 1.90, so 7456 × 1.90 = 14166. Then defense and resistance are applied sequentially: against a level 90 enemy with 10% resistance, defense multiplier = 0.5, resistance multiplier = 0.95, so 14166 × 0.5 × 0.95 = 6729. Finally, if a Vaporize reaction triggers with 200 EM, reaction multiplier = 1.5 × (1 + (200 × 2.78)/(200 + 1400)) = 1.5 × (1 + 556/1600) = 1.5 × 1.3475 = 2.021, giving final damage of 6729 × 2.021 = 13600. This matches what you would see in-game against a level 90 Hilichurl with no other buffs.
Example Calculation
To make the formula concrete, let's walk through a realistic scenario that a typical player might encounter when building their main DPS character. We will use a popular and powerful character: Hu Tao with a Staff of Homa build, fighting a level 90 Maguu Kenki.
First, calculate Hu Tao's effective ATK after Skill conversion. Base ATK = 106 + 608 = 714. From artifacts, she has 50 flat ATK from substats. Total ATK before Skill = 714 + 50 = 764. Hu Tao's E skill at level 10 converts 6.26% of her Max HP to ATK, capped at 400% of base ATK. Max HP = 15552 base + 15% HP from substats (15552 × 0.15 = 2333) + 46.6% from Sands (15552 × 0.466 = 7247) + Staff of Homa passive (20% HP from R1, 15552 × 0.20 = 3110) = 15552 + 2333 + 7247 + 3110 = 28242 HP. ATK from E = 28242 × 0.0626 = 1768. Cap is 400% of 714 = 2856, so 1768 is under cap. Total ATK = 764 + 1768 = 2532. Add Bennett's 1000 flat ATK = 3532. Add 25% Pyro resonance = 3532 × 1.25 = 4415 effective ATK (this is simplified; actual order of operations adds flat ATK after percentage ATK, but for this example it's close enough).
Skill multiplier for Hu Tao's charged attack at level 10 is 242.6% for the initial hit. Base damage = 4415 × 2.426 = 10709. Total Damage Bonus: Pyro DMG Goblet (46.6%) + Crimson Witch 4-piece (15% Pyro DMG, plus 50% bonus on Vaporize reactions from 4-piece effect) + Staff of Homa passive (ATK bonus already accounted) + possible other bonuses. For simplicity, assume Pyro DMG Bonus = 46.6% + 15% = 61.6%. So 10709 × 1.616 = 17306. Crit average: Crit Rate = 5% base + 31.1% circlet + 20% substats = 56.1%. Crit DMG = 88.4% ascension + 66.2% weapon + 40% substats = 194.6%. Average crit multiplier = 1 + (0.561 × 1.946) = 1 + 1.092 = 2.092. So 17306 × 2.092 = 36204. Defense multiplier: level 90 Hu Tao vs level 90 Maguu Kenki: (90+100)/((90+100)+(90+100)) = 190/380 = 0.5. So 36204 × 0.5 = 18102. Resistance: base 10% Pyro resistance, reduced by Zhongli shield (-20%) to -10%, then by VV (-40%) to -50%. Formula for negative resistance: multiplier = 1 + (|resistance|/2) = 1 + (0.50/2) = 1.25. So 18102 × 1.25 = 22628. Reaction: Hu Tao triggers Vaporize on the charged attack. EM = 80 from substats. Reaction multiplier for Vaporize (Pyro on Hydro) = 1.5 × (1 + (80 × 2.78)/(80 + 1400)) = 1.5 × (1 + 222.4/1480) = 1.5 × 1.1503 = 1.725. Final damage = 22628 × 1.725 = 39033. This is the average damage per charged attack hit against a Hydro-affected Maguu Kenki. In practice, the actual hit might vary due to the 56.1% crit rate, but over many hits the average is ~39k per charged attack.
This result tells you that your Hu Tao build is capable of dealing nearly 40,000 damage per charged attack under optimal team conditions. If you were to swap the Crit Rate circlet for a Crit DMG circlet, the calculator would show a different average, helping you decide which build is better for consistent damage.
Another Example
Consider a different scenario: a level 90 Xingqiu with 4-piece Emblem of Severed Fate, using his Elemental Burst at talent level 13 with a Sacrificial Sword (R5). Xingqiu has 200% Energy Recharge, 60% Crit Rate, 120% Crit DMG, and 1500 ATK. He fights a level 85 Ruin Guard with 10% Hydro resistance. His burst deals 5 hits per wave, each with a 108%
The Genshin Impact Damage Calculator is a tool that simulates the game's damage formula to predict the final damage output of a character's attack, skill, or burst against a specific enemy. It calculates the expected damage by factoring in character base stats, weapon stats, artifact set bonuses, talent multipliers, elemental reactions, and enemy resistances. For example, it can compute how much damage a Level 90 Hu Tao with 30,000 HP and a Staff of Homa would deal with her Charged Attack against a Level 90 Cryo Regisvine. The core formula is: Damage = (Base ATK × Talent Multiplier) × (1 + DMG Bonus%) × (1 + Crit DMG%) × Enemy Defense Multiplier × Enemy Resistance Multiplier × Reaction Multiplier. The Base ATK is character base ATK plus weapon base ATK, and the Defense Multiplier is calculated as (Character Level + 100) ÷ [(Character Level + 100) + (Enemy Level + 100) × (1 - Defense Reduction%)]. For instance, a Level 90 character hitting a Level 90 enemy with no defense shred gets a Defense Multiplier of 0.5. For a well-invested main DPS character at Level 90 with a 5-star weapon, a normal unbuffed single-hit damage against a Level 90 overworld enemy ranges from 15,000 to 30,000 for a skill, and 40,000 to 80,000 for a burst. "Healthy" values for a reaction like Vaporize or Melt can push these to 100,000–200,000. For example, a standard Hu Tao Vaporize Charged Attack hitting 80,000 is considered strong, while over 150,000 is exceptional. When all inputs are correct (character stats, weapon refinement, artifact substats, and enemy level/resistance), the calculator is typically accurate to within 1-3% of in-game damage numbers. This is because it uses the exact same formula reverse-engineered from the game client. However, accuracy drops if you misinput artifact substat rolls or forget to account for enemy-specific resistances (e.g., a Ruin Guard has 70% Physical Resistance, not 10%). It cannot simulate dynamic combat factors like enemy movement, stagger, or invincibility frames, nor can it account for team energy regeneration or rotation timing. It also struggles with multi-hit abilities that snapshot buffs at different moments (e.g., Xiangling's Pyronado), requiring manual buff timing inputs. Additionally, it ignores fall damage, environmental effects, and the exact RNG of artifact substat upgrades. Compared to manual spreadsheet calculations, the calculator is faster and less error-prone, but lacks the customizability of a full spreadsheet for complex rotations. Against in-game testing (hitting a boss repeatedly), the calculator is more precise since it averages out crit RNG, but it cannot replicate real-world lag or ping issues. Professional theorycrafters often use both: the calculator for quick comparisons and spreadsheets for final rotation DPS optimization. Many new users assume the calculator includes buffs from teammates like Bennett's ATK boost or Kazuha's Elemental DMG bonus without manually enabling those options. In reality, you must explicitly input each buff's value (e.g., Bennett's ATK bonus = Base ATK × 0.56 + 1000 at Level 13 Burst) or the calculator will only show solo damage. This leads to underestimating team damage by 40-60% if forgotten. Players use the calculator to simulate whether a 4-piece Emblem of Severed Fate set outperforms a 2-piece Noblesse + 2-piece Shimenawa on Raiden Shogun, by inputting her exact substats and team buffs. For example, a user might find that swapping from 200% to 250% Energy Recharge via Emblem yields a 15% burst damage increase, saving weeks of resin farming for a marginal upgrade. It also helps decide between ATK% or Electro DMG goblets.Frequently Asked Questions