Genshin Community, Why do you calculate Crit Value the way you do?

The formula I got is (Critrate x 2) + Critdamage.
The math is simple i get it, my friend started to ramble about needing good "CV" so he explained it to me, but something he doesnt explain, and well, I cannot find anything on, is **why** you calculate it this way.

Instead of using just Pure Critrate + Critdamage? Why double the Critrate, just because you get 1/2 the buff in critrate as oppose to critdamage?

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Penguin_Quinn2026-01-20 17:21

The crit damage values on artifacts are twice the crit rate values on artifacts
[A perfect crit damage circlet is 62.2
A perfect crit rate circlet is 31.1](https://genshin-impact.fandom.com/wiki/Artifact/Stats)

BunX_2021_2026-01-20 17:25

exactly, but I am asking, why are you doubling the Critrate value to match the crit damage.
The game itself wont double your critrate afaik, so you're calculating for Critical values that are mathematically not achieveable, I want to know if theres a deeper reason for Doubling Critrate, over just "Well just match it to CritDmg"

Penguin_Quinn2026-01-20 17:28

So that you can compare different pieces without that difference

* CR 10 CD 30
* CR 20 CD 20
* CR 30 CD 10

All three have 40 crit on the surface
But when you factor that the crit rate values take twice as much to get the same number, they become 50, 60, 70

BunX_2021_2026-01-20 18:31

**Cr 10% Cd 30%**, would yield you roughly **3%** of extra damage each hit.
Thats CV of 50%

**Cr 30% Cd 10%**, would yield you THE SAME **3%** extra damage.
thats CV of 70%.

and even funnier, **Cr and Cd of 20%** would yield **4%** extra damage.
at CV of 60%.

Using: Critrate \* Critdamage.

Example:
at 100 damage, with 10 attacks,
Cr10% = 1/10 attacks will be critical, 9/10 will be normal.
with Cd 30% thats - 9x attacks that deal 100 dmg + 1x crit attack that deals 130

adding up to 1030, for 3% extra damage.

Same goes for other stats.

comparing using CV would have me told that 10% critrate with 30% Critdamage is worse, than 30% critrate with 10% crit damage. Even though they provide the same exact benefit when factoring for 0 randomness.

30% critrate with 10% crit damage would only be better because of dishing out more consitent criticals.

The results, from, a 100 row spreadsheet, going from 0-100% in both ways, only skews CV even more as unreliable.

I dont mean to come off as a nerdy math child bastard or anything, but the logic behind CV is just not mathing out for me.

Penguin_Quinn2026-01-20 18:38

I was just using whole numbers to show easy math comparison, not actual crit rate, damage or value
Characters base crit rate and damage affect the calculations you did

Yes you can calculate the actual expected damage across a combo
Crit value is just a simple way to compare artifact stat and sub stat rolls since crit damage's values are two times crit rate's values

BunX_2021_2026-01-20 18:45

I don't play Genshin, so i guess I can't debate you on advanced mechanics, and character specific bonuses, I was just confused on CV.

Thanks anyway.

CLORIQUINE2026-01-20 18:45

I think an important thing to consider here is that crit rate is useless when above 100%, but crit damage doesn’t have a limit as you will only start getting diminishing returns

That can make crit damage better than rate when you have a good build and trying to minmaxx, that’s also when people usually care about CV

BunX_2021_2026-01-20 19:10

I did note that down. And If i had the time I'd graph out the 1,002,001+ possible combinations From 0 CR and CD, to 100% both. in both directions, just to truly compare them.

Allas, I don't have the technical experience with Excel, and I already have a system to see which artifact adjacent item is better on mathematical level though.

CLORIQUINE2026-01-20 20:28

I’m afraid comparing CR and CD in an isolated environment isn’t very practical for gameplay, but it can still be fun and somewhat helpful for sure (as far as only the artifacts are concerned)

Once you start factoring in characters own stats and abilities, weapon passives, artifact sets, ownership of elemental reactions, rotation order and length or even ping - it becomes a lot more complicated than just CV, and that would also kinda explain why everyone simplifies the ratios to 1/2 :)

lostn2026-01-21 12:48

it's to measure artifact quality at a glance.

If you give them equal weight, it's hard to tell how good a piece is.

20% CR on a piece is worth more RV than 20% CD. Because it's much harder to get 20% CR than 20% CD.

nlopnlipa2026-01-20 17:23

>just because you get 1/2 the buff in critrate as oppose to critdamage

You answered it yourself, 20CR needs the same amount of rolls as 40CD, so you convert it to CV to be able to compare pieces that have both CR and CD.

Fall0fReach-jOnYx-NA2026-01-20 19:06

CD values are double CR values, so we need to normalize to make it comparable. Addition operation is only meaningful when your inputs are the same scale (think of trying to add meters to centimeters).

I think about it this way: we assume CR and CD are equally important, with CR capped at 100% and CD uncapped, assuming 100% CD is optimal. We can define expected payoff=p(1-p), x=CR and 1-x=CD/2. since CD is double the value of CR. Expected crit bonus ignoring base damage is CR*CD, and substituting CD=2(1-x) into the expected (payoff) bonus is 2x(1-x). Up to a constant factor this function is a concave quadratic with a maximum at 1/2. Expected damage bonus is 0 when x=0 (no crit rate) or x=1 (no crit dmg). CR=1/2 implies CD=1, giving the 1:2 ratio

RoyalFencepost2026-01-20 22:00

If sources of crit stats gave rate and damage in equal amounts, then it would be optimal result for average damage of cr*cd when cr = cd at a given total of cr + cd. However, because crit rate sources give it at half of the value of crit damage, then if you can trade 10% crit rate for 20% when they are at equal values, doing so is a damage improvement. However, because the crit rate makes crit damage more valuable, trading crit rate for crit damage is only an improvement until you have a total crit ratio of 1:2 cr to cd. So, people target to have a crit ratio of around that. When your crit ratio is around 1:2, additional crit rate is multiplied by twice as much as additional crit damage, so 1% rate is the same damage improvement as 2% damage. This is why we multiply crit rate by two to get CV, because the value of a crit rate roll and a crit damage roll really is about equal despite the numerical difference if a character is built fairly optimally.