HSR DPS Calculator – Honkai Star Rail Damage Formula

HSR DPS Calculator

Estimate Honkai: Star Rail hit damage from total ATK, skill multiplier, crit rate and crit damage, elemental DMG bonus, DEF shred, enemy level, RES penetration, and vulnerability using the accurate multiplicative damage model.

🌟Real Build Presets

📝Damage Inputs

Final ATK including relics, cone, and team buffs.

Ability scaling, e.g. 250% at max level.

Sum of DMG% type buffs on this hit.

Combined DEF reduction and DEF ignore.

After RES PEN. Negative means weakness.

Debuffs that raise DMG the enemy takes.

Unbroken enemies take a 10% DMG reduction on some hits.

Used for total rotation damage estimate.

Average hit 0 expected DMG per hit
Crit hit 0 on a critical hit
Non-crit hit 0 no critical hit
Total multiplier 0Ă— all lines vs base

🔢Damage Line Snapshot

0Base DMG
1.00Ă—Crit avg mult
1.00Ă—DEF mult
1.00Ă—RES mult

🎯Crit Ratio Guidance (1 : 2)

Crit RateIdeal Crit DMGRatioCrit Avg MultNotes
50%100%1 : 21.50Ă—Early relic floor
60%120%1 : 21.72Ă—Solid mid game
70%140%1 : 21.98Ă—Common target
70%180%1 : 2.62.26Ă—Crit DMG cone bonus
80%160%1 : 22.28Ă—Well-tuned build
90%200%1 : 2.22.80Ă—Endgame ceiling
100%240%1 : 2.43.40Ă—Guaranteed crit

📦DMG Bonus Type Reference

SourceTypical ValueLineStacks WithNote
Body relic main+38.8% ElemDMG bonusAll DMG%Matches your element
Planar orb main+38.8% ElemDMG bonusAll DMG%Or ATK% orb instead
4pc set effect+10% to 24%DMG bonusAll DMG%Often conditional
Light cone+18% to 40%DMG bonus / ATKAll DMG%Read the passive
Support buff+12% to 48%DMG bonusAll DMG%Team DMG boosts
Trace passive+8% to 28%DMG bonusAll DMG%Ability-type bonus

🛡DEF Shred Effect

DEF ReductionDEF Mult (Lv80 vs 85)DMG vs 0% ShredTypical SourceNote
0%0.656Ă—BaselineNoneFull enemy DEF
10%0.681Ă—+3.8%Trace / coneSmall gain
20%0.707Ă—+7.8%Support debuffNoticeable
28%0.730Ă—+11.2%Silver Wolf styleStrong shred
40%0.766Ă—+16.8%Stacked debuffsLarge gain
52%0.804Ă—+22.6%Shred + ignoreNear ceiling

đź§ŞRES and Vulnerability Reference

Enemy RESRES MultVulnerabilityVuln MultCombined
-20% (weak)1.20Ă—0%1.00Ă—1.20Ă—
0%1.00Ă—0%1.00Ă—1.00Ă—
0%1.00Ă—10%1.10Ă—1.10Ă—
20%0.80Ă—0%1.00Ă—0.80Ă—
20%0.80Ă—18%1.18Ă—0.94Ă—
40% (resist)0.60Ă—0%1.00Ă—0.60Ă—

đź—‚Build Comparison Grid

BuildATKSkill %Crit R / DDMG BonusDEF ShredRES / Vuln
Hypercarry DPS3600280%75 / 19078%20%0% / 14%
Crit Build3200250%90 / 22060%0%0% / 0%
DoT Build4000210%10 / 6085%0%0% / 10%
Ultimate Damage3400420%72 / 17570%10%0% / 0%
Follow-Up3300200%78 / 16572%0%0% / 12%
Break Effect3000180%5 / 5040%0%0% / 0%
DEF Shred3100250%68 / 15062%45%0% / 0%
Vulnerability3250250%70 / 17065%0%0% / 30%

⚙Full Formula Breakdown

Base DMGBase = Total ATK Ă— skill multiplier / 100. A 3200 ATK hit at 250% gives a base of 8000 before any other line.
DMG bonus multdmgBonusMult = 1 + DMG bonus% / 100. All elemental, ability-type, and general DMG% add into this single line.
Crit averagecritAvg = 1 + (crit rate/100) Ă— (crit damage/100). This is the expected multiplier over many hits.
DEF multdefMult = (charLv+20) / ((charLv+20) + (enemyLv+20) Ă— (1 - defReduction/100)). DEF shred and ignore both lower enemy DEF here.
RES multresMult = 1 - RES% / 100. Values shown are after RES penetration; negative RES means the enemy is weak and takes more.
VulnerabilityvulnMult = 1 + vulnerability% / 100. This is its own multiplier line and stacks on top of DMG bonus.
Final averageAvg DMG = Base Ă— dmgBonusMult Ă— critAvg Ă— defMult Ă— resMult Ă— vulnMult Ă— toughness factor.

đź“‹Input Reference Values

InputCommon RangeHow It Is UsedDamage Effect
Total ATK2600 to 4200Base = ATK Ă— skill%Linear with base damage
Skill multiplier120% to 460%Scales base damageLinear per hit
Crit rate50% to 100%Feeds crit averageHigher expected damage
Crit damage100% to 260%Feeds crit averageBigger crit hits
DMG bonus38% to 120%1 + bonus% lineDirect multiplier
DEF shred + ignore0% to 55%Lowers enemy DEFRaises DEF multiplier
Enemy level80 to 95DEF mult denominatorHigher level cuts damage
RES / vulnerability-20% to 40% / 0% to 33%Own multiplier linesScale final damage

đź’ˇPractical HSR Damage Tips

Crit ratio tip: Keep crit rate to crit damage near 1 : 2 so relic rolls give the most average damage. Past a comfortable crit rate, more crit damage usually wins because rate is capped at 100%.
Multiplier line tip: DMG bonus, crit, DEF, RES, and vulnerability are separate multiplier lines. Stacking a new line you barely have, like DEF shred or vulnerability, often beats piling more into a line you already stacked high.

If you find Honkai: Star Rail’s 20% defense shred feels like a bigger improvement then its 10% boost to attack, that might stem from how you think about damage stats. They’re just numbers, right? In reality, they’re calculated via complex multiplicative lines rather than additive pools, that makes it hard for players to find signal from noise, which is where a serious DPS calculator enters the picture.

Attack is the first stat on any character sheet so when new players look at it, they tend to think that’s the “biggest” stat. Why? Because it’s simple: it adds linearly to your base multiplier. In reality, though, there are diminishing returns once your total attack reach a certain point. The calculator do all this math for you, showing how every stat affect your eventual hit value. Plug in your numbers and observe as things change.

How Stats Multiply Your Damage

Beyond attack, the next line to understand is the skill multiplier. The skill multiplier is a percentage that represent how much of your attack will be converted to damage pre-buffs and pre-resistances. If you have high attack but then use an ability that has a lower scaling coefficient, it doesn’t matter as much. People tend to forget about this when comparing characters blindfolded. Take into account what the raw stat is paired with and which move you plan on using in battle.

Until you nail the crit equation it can feel more like a lottery. Generally, the golden rule is that crit rate should of be half of your crit damage. If you increase both stats by five percent, you will see an equal increase in your average expected damage as long as you keep the ratio the same. This means that you’re not using all of the possible damage if you have, say, ninety percent crit rate with only eighty percent crit damage. As you move the sliders around when deciding how to roll relics, the tool visualizes this trade off.

The most misinterpreted stat is probably defense shred, since it decreases the amount of damage absorbed and doesn’t add damage straight to target. By the end game, enemies sport huge amounts of defense which will split your damage in half if unadjusted for. Cutting down their defense by 20% may seem minor, but it actualy multiplies your damage much higher than a comparable raw attack buff at higher levels. It’s less about hitting them harder and more about taking away the protection that prevents your punch from hurting them.

Likewise, vulnerability buffs and elemental damage bonuses are multiplicative, too. These also gets added together in their respective lines. Whatever amount of crit or attack you have, the total amount get multiplied by however many multipliers is there in your build. This is where people frequently err: going all-out on a stat that’s maxed out but neglecting an additional line of multipliers that’s sitting at 0. Ten percent of one hundred percent of damage isn’t as good as ten percent of no percent of vulnerability. Having many different multiplier lines tends to be better than focusing on one stat.

Resistance penetration works inversely to defense shred, negating the enemy’s ability to resist your specific element. If an enemy is highly resistant to an element you deal without a teammate such as Yukong or Silver Wolf applying their vulnerability debuff, your damage will drop through the floor. You can plug in enemy resistance values, along with any support buffs from other players, into the calculator, which shows just how much a character’s performance rely on their party composition.

To get the most out of your builds in Honkai: Star Rail, think less in terms of numbers and more in layers. Your goal isn’t just to find highest number on a relic. You want to string together all those elements; attack, scaling, crit chance, elemental amplification, defense mitigation, and resistance handling, into a unified plan. If you can understand how each piece fits into the greater whole, the road to increased damage reveals itself. That understanding of multipliers will help improve your build, while the calculator helps reinforce that learning through the feedback loop. Continue experimenting with various combo until the math fit your playstyle. Know that balancing a mix of multipliers tends to perform better over time than stuffing a bunch of raw statistcs.

HSR DPS Calculator – Honkai Star Rail Damage Formula