Approved by Kennedy
The damage calculator is a tool accurate to the way damage is calculated in Pokémon games that allows you to approximately calculate the damage inflicted by a Pokémon's move on another Pokémon.
This tool also allows you to take into account and add several parameters to the damage calculation to make it as accurate as possible.
Thus, through this guide, we will learn how to use this tool in an optimal way in order to be as precise as possible during our battles!
Thank you to all the volunteers who offered their valuable help in translating this guide so that it can help as many people from various communities as possible.
Below you will find the translations of this guide:
To do this, we will divide the tutorial into 3 main parts:
1 - The attacker and the attacked
To begin this part, we will define some important parameters that are present at the very top of the page. To do this, we will look at the areas framed in red, green and blue.
The red area represents the generation in which you are playing or want to calculate the damage of an attack on a Pokémon. It is possible to select a generation from the eight existing generations.
The green area represents the unit of measurement used to display the results of the calculations you will perform. The unit of measurement 48th will display the figures as a fraction of 48 rounded up. The reason why this unit of measurement is proposed is that before generation 6, in Pokémon games, only 48 pixels were used to display the HP bar. The only format 48ths are relevant for is cartridge metagames (VGC, GBU..) prior to generation 5. While the unit of measurement 100% will display the figures in percentages with 100% as the maximum value. The percentages are derived from the actual damage dealt. So if an attack deals 100 damage, and the Pokemon has 304 HP, the percentage listed is 32.8% because 100/304 is approximately ~0.328.
The blue area is used to select the operating mode of the calculator. The One vs One option allows you to calculate the damage done and received by a single Pokémon, the One vs All option allows you to calculate the damage inflicted by your best attack on all Pokémon, the All vs One option allows you to calculate the damage inflicted by the best attack of all Pokémon against your Pokémon and the Random Battles option allows you to calculate the damages inflicted by a Pokémon in Random Battles.
Secondly, we will focus on the two surfaces framed in red.
First thing first, a Pokémon must be selected. To do so, simply enter the name of your Pokémon in the search bar. Some Pokémon already have predefined and viable sets that are selectable like this:
The sets suggested depend on the generation you are playing in. It's also possible to import a set you've created and that's in your builder into Pokémon Showdown!
To do this, go to your team builder, copy the text of the Pokémon you want to use on the calculator, and paste it like this:
Once the Pokémon is imported, it will appear in searches with "Custom Set" in our case or the name you chose next to its name.
You can also manually select a blank or existing set, and manually modify it to suit your needs.
You can modify its EVs, its nature, its status (poisoned, burnt, paralyzed...), its moves, and also add stat changes. Next to each statistic (HP, Attack, Defense...), there is a box where you can add a boost or a debuff to the statistic going from +6 to -6.
2 - The field
The field is something that should not be overlooked when calculating damage. The field can completely change the result of a calculation because it affects the Pokémon in play.
For this part, we're going to focus on the purple area of the following screenshot.
The top part of the purple frame allows you to select parameters that affect all Pokémon on the field. These parameters include terrain, weather, and certain alterations that can increase the damage of one type of attack, decrease the damage of another, or even nullify immunity to attacks of a certain type.
The section below allows you to select terrain-specific options for Pokémon 1 (left side of the purple area) and Pokémon 2 (right side of the purple area).
Let's say you want to calculate the damage of Pokémon 1's attack on Pokémon 2, taking into account the following parameters: there are stealth rocks and 2 spikes on Pokémon 2's field, and on top of that, the electric terrain and the sun are active:
You will have to select all the parameters in the field part before taking into account the calculation like this:
3 - How do we calculate and interpret our results?
We are entering the final part of this guide. In order to properly calculate and interpret our calculations, we will focus on the part framed in orange.
As you can see, in the orange boxed area we have the attacks of Pokémon 1 on the left and Pokémon 2 on the right.
Without having to click on an attack, we can see the damage it can inflict on the opposing Pokémon written on the right side of each move. The calculator automatically displays this for the most damaging move.
Furthermore, if you double-click a move, it "locks it into place" and will show that move in damage calculation as opposed to the most damaging move.
However, what interests us more is the sentence below: "252+ Atk Choice Band Kartana Leaf Blade vs. 252 HP / 252+ Def Toxapex: 166-196 (54.6 - 64.4%) -- guaranteed 2HKO". This sentence means that we selected the attack named Leaf Blade to see how much damage it can do to Pokémon 2, Toxapex.
Finally, we will analyze and interpret the sentence piece by piece.
"252+ Atk Choice Band Kartana Leaf Blade" the sentence starts by Pokémon 1 (Kartana) attack stat (252) followed by the boosts of its nature (adamant which boosts the attack and reduces the special attack), its item (choice band) and the move selected (Leaf Blade).
"252 HP / 252+ Def Toxapex" the second part of the sentence targets Pokémon 2 (Toxapex) as for the first part, it starts with Pokémon 2's stats. There is no item in the second part because Toxapex does not hold any item that could influence the damage inflicted by Kartana.
"166-196 (54.6 - 64.4%)" these numbers simply represent the damage inflicted to Toxapex.
To finish, "guaranteed 2HKO" means that Pokémon 1 can defeat Pokémon 2 in two hits with the move selected.
POKÉMON DAMAGE CALCULATOR TUTORIAL
What is the damage calculator?
The damage calculator is a tool accurate to the way damage is calculated in Pokémon games that allows you to approximately calculate the damage inflicted by a Pokémon's move on another Pokémon.
This tool also allows you to take into account and add several parameters to the damage calculation to make it as accurate as possible.
Thus, through this guide, we will learn how to use this tool in an optimal way in order to be as precise as possible during our battles!
Thank you to all the volunteers who offered their valuable help in translating this guide so that it can help as many people from various communities as possible.
Below you will find the translations of this guide:
To do this, we will divide the tutorial into 3 main parts:
1 - The attacker and the attacked
To begin this part, we will define some important parameters that are present at the very top of the page. To do this, we will look at the areas framed in red, green and blue.

The green area represents the unit of measurement used to display the results of the calculations you will perform. The unit of measurement 48th will display the figures as a fraction of 48 rounded up. The reason why this unit of measurement is proposed is that before generation 6, in Pokémon games, only 48 pixels were used to display the HP bar. The only format 48ths are relevant for is cartridge metagames (VGC, GBU..) prior to generation 5. While the unit of measurement 100% will display the figures in percentages with 100% as the maximum value. The percentages are derived from the actual damage dealt. So if an attack deals 100 damage, and the Pokemon has 304 HP, the percentage listed is 32.8% because 100/304 is approximately ~0.328.
The blue area is used to select the operating mode of the calculator. The One vs One option allows you to calculate the damage done and received by a single Pokémon, the One vs All option allows you to calculate the damage inflicted by your best attack on all Pokémon, the All vs One option allows you to calculate the damage inflicted by the best attack of all Pokémon against your Pokémon and the Random Battles option allows you to calculate the damages inflicted by a Pokémon in Random Battles.
Secondly, we will focus on the two surfaces framed in red.


To do this, go to your team builder, copy the text of the Pokémon you want to use on the calculator, and paste it like this:

You can also manually select a blank or existing set, and manually modify it to suit your needs.
You can modify its EVs, its nature, its status (poisoned, burnt, paralyzed...), its moves, and also add stat changes. Next to each statistic (HP, Attack, Defense...), there is a box where you can add a boost or a debuff to the statistic going from +6 to -6.
2 - The field
The field is something that should not be overlooked when calculating damage. The field can completely change the result of a calculation because it affects the Pokémon in play.
For this part, we're going to focus on the purple area of the following screenshot.

The section below allows you to select terrain-specific options for Pokémon 1 (left side of the purple area) and Pokémon 2 (right side of the purple area).
Let's say you want to calculate the damage of Pokémon 1's attack on Pokémon 2, taking into account the following parameters: there are stealth rocks and 2 spikes on Pokémon 2's field, and on top of that, the electric terrain and the sun are active:
You will have to select all the parameters in the field part before taking into account the calculation like this:

3 - How do we calculate and interpret our results?
We are entering the final part of this guide. In order to properly calculate and interpret our calculations, we will focus on the part framed in orange.

Without having to click on an attack, we can see the damage it can inflict on the opposing Pokémon written on the right side of each move. The calculator automatically displays this for the most damaging move.
Furthermore, if you double-click a move, it "locks it into place" and will show that move in damage calculation as opposed to the most damaging move.
However, what interests us more is the sentence below: "252+ Atk Choice Band Kartana Leaf Blade vs. 252 HP / 252+ Def Toxapex: 166-196 (54.6 - 64.4%) -- guaranteed 2HKO". This sentence means that we selected the attack named Leaf Blade to see how much damage it can do to Pokémon 2, Toxapex.
Finally, we will analyze and interpret the sentence piece by piece.
"252+ Atk Choice Band Kartana Leaf Blade" the sentence starts by Pokémon 1 (Kartana) attack stat (252) followed by the boosts of its nature (adamant which boosts the attack and reduces the special attack), its item (choice band) and the move selected (Leaf Blade).
"252 HP / 252+ Def Toxapex" the second part of the sentence targets Pokémon 2 (Toxapex) as for the first part, it starts with Pokémon 2's stats. There is no item in the second part because Toxapex does not hold any item that could influence the damage inflicted by Kartana.
"166-196 (54.6 - 64.4%)" these numbers simply represent the damage inflicted to Toxapex.
To finish, "guaranteed 2HKO" means that Pokémon 1 can defeat Pokémon 2 in two hits with the move selected.
"252+ Atk Choice Band Kartana Smart Strike vs. 252 HP / 252+ Def Toxapex: 64-76 (21 - 25%) -- 0% chance to 4HKO"
Means that Adamant Kartana holding a Choice Band will inflict between 21 and 25% damage on Toxapex by using the move Smart Strike. It will need to hit Toxapex at least five times in order to defeat it.
"252+ Atk Choice Band Kartana Leaf Blade vs. 252 HP / 252+ Def Toxapex: 166-196 (54.6 - 64.4%) -- 25% chance to OHKO after Stealth Rock and 3 layers of Spikes" Means that Adamant Kartana holding a Choice Band has a 25% chance to defeat Toxapex in one single hit with the move Leaf Blade if it takes the damages of Stealth Rock and 3 layers of Spikes.
Means that Adamant Kartana holding a Choice Band will inflict between 21 and 25% damage on Toxapex by using the move Smart Strike. It will need to hit Toxapex at least five times in order to defeat it.
"252+ Atk Choice Band Kartana Leaf Blade vs. 252 HP / 252+ Def Toxapex: 166-196 (54.6 - 64.4%) -- 25% chance to OHKO after Stealth Rock and 3 layers of Spikes" Means that Adamant Kartana holding a Choice Band has a 25% chance to defeat Toxapex in one single hit with the move Leaf Blade if it takes the damages of Stealth Rock and 3 layers of Spikes.
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