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This page lists all songs in order of their chart constant, then by alphabetical order. For uses of chart constants, see Potential.

The methods used to determine chart constants are located at the Japanese Wiki. A translation of these methods is available after the song lists.

Past

Song Artist Chart Constant
Level 1
Blossoms T2Kazuya 1.0
Fairytale chitose 1.0
Harutopia ~Utopia of Spring~ A-zu-ra 1.0
Kanagawa Cyber Culvert 南ゆに 1.0
Paradise Sound Souler 1.0
Romance Wars U-ske (feat. lueur) 1.0
Dream goes on Tiny Minim 1.5
dropdead Frums 1.5
Infinity Heaven HyuN 1.5
Moonlight of Sand Castle 旅人E 1.5
Sayonara Hatsukoi REDSHiFT 1.5
Level 2
Antithese Blacklolita 2.0
Brand new world U-ske 2.0
Clotho and the stargazer しーけー 2.0
Evoltex (poppi'n mix) Arch vs n3pu 2.0
Genesis Iris 2.0
Illegal Paradise gmtn. (witch's slave) 2.0
Impure Bird MIssionary 2.0
inkar-usi DIA 2.0
Suomi Aire 2.0
Anökumene Jun Kuroda 2.5
Dandelion Farhan 2.5
Diode Kolaa 2.5
Flashback ARForest 2.5
Grimheart Puru 2.5
Hikari THB 2.5
Linear Accelerator THE SHAFT 2.5
memoryfactory.lzh Frums 2.5
Moonheart 翡乃イスカ 2.5
Nirv lucE しーけー 2.5
One Last Drive REDSHiFT 2.5
Purgatorium お月さま交響曲 2.5
Rabbit In The Black Room Rabbit House 2.5
REconstruction Ryazan 2.5
Reinvent Sound Souler 2.5
Rise Combatplayer 2.5
Silent Rush Soleily 2.5
Snow White Puru 2.5
Strongholds Yooh 2.5
Vexaria ak+q 2.5
World Vanquisher void (Mournfinale) 2.5
Lumia sky_delta 3.0
Level 3
Babaroque cYsmix 3.0
Black Territory DJ Myosuke 3.0
Chelsea 7mai 3.0
Corruption 3R2 3.0
DataErr0r Lunatic Sounds 3.0
Dot to Dot feat. shully Mameyudoufu 3.0
DX Choseinou Full Metal Shojo IOSYS TRAX (uno with.ちよこ) 3.0
Faint Light Taishi 3.0
Fallensquare Silentroom 3.0
Flyburg and Endroll アリスシャッハと魔法の楽団 3.0
Hall of Mirrors Sta 3.0
Journey ARForest 3.0
Maze No.9 アリスシャッハと魔法の楽団 3.0
MERLIN REDALiCE 3.0
Metallic Punisher INNOCENT NOIZE 3.0
Nhelv Silentroom 3.0
OMAKENO Stroke t+pazolite 3.0
Oracle TQ☆ 3.0
ReviXy ikaruga_nex 3.0
Rugie Feryquitous feat.Sennzai 3.0
Senkyou MYTK 3.0
Shades of Light in a Transcendent Realm ak+q 3.0
STAGER (ALL STAGE CLEAR) Ras 3.0
SUPERNOVA BACO 3.0
Surrender void 3.0
The Message Jun Kuroda 3.0
Tie me down gently 溝口ゆうま feat. 大瀬良あい 3.0
trappola bewitching gmtn. 3.0
VECTOЯ WHITEFISTS 3.0
A Wandering Melody of Love からとP⍺ոchii少年 feat.はるの 3.5
AI[UE]OON MYUKKE. 3.5
Auxesia ginkiha 3.5
Avant Raze Sampling Masters MEGA 3.5
BATTLE NO.1 TANO*C Sound Team 3.5
BLRINK Sta 3.5
Call My Name feat. Yukacco Mameyudoufu 3.5
Chronostasis 黒皇帝 3.5
cry of viyella Laur 3.5
Dement ~after legend~ Lunatic Sounds 3.5
Empire of Winter Street 3.5
Feels So Right feat. Renko Mysteka 3.5
Heavenly caress Noah 3.5
I've heard it said Combatplayer 3.5
Ignotus ak+q 3.5
Ikazuchi 光吉猛修 3.5
La'qryma of the Wasteland DJ Noriken 3.5
Lethaeus Silentroom 3.5
Libertas Zekk 3.5
Lucifer chitose 3.5
LunarOrbit -believe in the Espebranch road- Apo11o program ft. 大瀬良あい 3.5
Memory Forest ETIA. 3.5
Modelista HiTECH NINJA 3.5
Oblivia Saiph 3.5
Particle Arts Virtual Self 3.5
SOUNDWiTCH HATE 3.5
Specta Junk 3.5
Syro Mitomoro 3.5
world.execute(me); Mili 3.5
Your voice so... feat. Such PSYQUI 3.5
Level 4
GOODTEK (Arcaea Edit) EBIMAYO 3.5
amygdata nitro 4.0
Be There PSYQUI 4.0
Blaster Massive New Krew 4.0
carmine:scythe かゆき 4.0
CROSS†SOUL HyuN feat. Syepias 4.0
cyanine jioyi 4.0
Cybernecia Catharsis Tanchiky 4.0
Dreadnought Mastermind (xi + nora2r) 4.0
Einherjar Joker DJ Genki vs Gram 4.0
FREEF4LL YUKIYANAGI 4.0
Iconoclast Yamajet 4.0
Lost Civilization Laur vs CK 4.0
Mirzam Aoi vs. siqlo 4.0
Party Vinyl モリモリあつし 4.0
Phantasia Yunosuke 4.0
Quon Feryquitous 4.0
Red and Blue Silentroom 4.0
Scarlet Cage Daisuke Kurosawa 4.0
Scarlet Lance MASAKI (ZUNTATA) 4.0
Solitary Dream ak+q feat. Sennzai 4.0
Sulfur ぺのれり 4.0
Vicious Heroism Kobaryo 4.0
Vindication Laur 4.0
αterlβus Aoi 4.0
γuarδina Aoi 4.0
Alexandrite WAiKURO 4.5
Astral tale Noah 4.5
Bookmaker (2D Version) Kobaryo 4.5
conflict siromaru + cranky 4.5
corps-sans-organes cybermiso 4.5
Dreamin' Attraction!! 翡乃イスカ 4.5
Essence of Twilight ak+q 4.5
Filament Puru 4.5
Garakuta Doll Play t+pazolite 4.5
GLORY:ROAD uma vs. モリモリあつし 4.5
Heavensdoor LeaF 4.5
next to you uma feat. 橘花音 4.5
ouroboros -twin stroke of the end- Cranky VS MASAKI 4.5
PRAGMATISM Laur 4.5
Relentless Akira Complex 4.5
Singularity ETIA. 4.5
Tiferet xi + Sta 4.5
Valhalla:0 Juggernaut. 4.5
Yosakura Fubuki A.SAKA 4.5
Monochrome Princess polysha 4.5
Level 5
qualia -ideaesthesia- nitro 4.5
IZANA t+pazolite vs P*Light 5.0
Axium Crisis ak+q 5.5
Cyaegha USAO 5.5
Ether Strike Akira Complex 5.5
Halcyon xi 5.5
Ringed Genesis Edelritter 5.5
SAIKYO STRONGER REDALiCE vs USAO 5.5
Sheriruth Team Grimoire 5.5
Level 6
Fracture Ray Sakuzyo 6.0
Grievous Lady Team Grimoire vs Laur 6.5

Present

Song Artist Chart Constant
Level 3
Fairytale chitose 3.5
Maze No.9 アリスシャッハと魔法の楽団 3.5
Level 4
Blossoms T2Kazuya 4.0
Brand new world U-ske 4.0
inkar-usi DIA 4.0
Paradise Sound Souler 4.0
Rise Combatplayer 4.0
Romance Wars U-ske (feat. lueur) 4.0
Harutopia ~Utopia of Spring~ A-zu-ra 4.5
Sayonara Hatsukoi REDSHiFT 4.5
Level 5
Antithese Blacklolita 5.0
Clotho and the stargazer しーけー 5.0
Dream goes on Tiny Minim 5.0
Flashback ARForest 5.0
Grimheart Puru 5.0
Moonlight of Sand Castle 旅人E 5.0
Oblivia Saiph 5.0
Silent Rush Soleily 5.0
Snow White Puru 5.0
Strongholds Yooh 5.0
Suomi Aire 5.0
Vexaria ak+q 5.0
Diode Kolaa 5.5
Genesis Iris 5.5
Hall of Mirrors Sta 5.5
Impure Bird MIssionary 5.5
Infinity Heaven HyuN 5.5
Kanagawa Cyber Culvert 南ゆに 5.5
Libertas Zekk 5.5
Lucifer chitose 5.5
memoryfactory.lzh Frums 5.5
MERLIN REDALiCE 5.5
Moonheart 翡乃イスカ 5.5
One Last Drive REDSHiFT 5.5
Oracle TQ☆ 5.5
Phantasia Yunosuke 5.5
Rabbit In The Black Room Rabbit House 5.5
Senkyou MYTK 5.5
Tie me down gently 溝口ゆうま feat. 大瀬良あい 5.5
World Vanquisher void (Mournfinale) 5.5
world.execute(me); Mili 5.5
Level 6
Dandelion Farhan 5.5
Call My Name feat. Yukacco Mameyudoufu 6.0
Chelsea 7mai 6.0
cry of viyella Laur 6.0
Dement ~after legend~ Lunatic Sounds 6.0
Dot to Dot feat. shully Mameyudoufu 6.0
DX Choseinou Full Metal Shojo IOSYS TRAX (uno with.ちよこ) 6.0
Faint Light Taishi 6.0
Flyburg and Endroll アリスシャッハと魔法の楽団 6.0
Hikari THB 6.0
I've heard it said Combatplayer 6.0
Journey ARForest 6.0
LunarOrbit -believe in the Espebranch road- Apo11o program ft. 大瀬良あい 6.0
Memory Forest ETIA. 6.0
Particle Arts Virtual Self 6.0
Purgatorium お月さま交響曲 6.0
REconstruction Ryazan 6.0
ReviXy ikaruga_nex 6.0
Rugie Feryquitous feat.Sennzai 6.0
Shades of Light in a Transcendent Realm ak+q 6.0
Sulfur ぺのれり 6.0
SUPERNOVA BACO 6.0
trappola bewitching gmtn. 6.0
AI[UE]OON MYUKKE. 6.5
Anökumene Jun Kuroda 6.5
Auxesia ginkiha 6.5
Avant Raze Sampling Masters MEGA 6.5
Babaroque cYsmix 6.5
BATTLE NO.1 TANO*C Sound Team 6.5
Bookmaker (2D Version) Kobaryo 6.5
Corruption 3R2 6.5
Empire of Winter Street 6.5
Feels So Right feat. Renko Mysteka 6.5
Garakuta Doll Play t+pazolite 6.5
GOODTEK (Arcaea Edit) EBIMAYO 6.5
Ignotus ak+q 6.5
La'qryma of the Wasteland DJ Noriken 6.5
Lethaeus Silentroom 6.5
Linear Accelerator THE SHAFT 6.5
Lumia sky_delta 6.5
OMAKENO Stroke t+pazolite 6.5
Quon Feryquitous 6.5
Reinvent Sound Souler 6.5
Relentless Akira Complex 6.5
SOUNDWiTCH HATE 6.5
Specta Junk 6.5
STAGER (ALL STAGE CLEAR) Ras 6.5
Surrender void 6.5
Syro Mitomoro 6.5
The Message Jun Kuroda 6.5
Vindication Laur 6.5
Your voice so... feat. Such PSYQUI 6.5
Nhelv Silentroom 7.0
Level 7
Fallensquare Silentroom 6.5
Blaster Massive New Krew 7.0
Einherjar Joker DJ Genki vs Gram 7.0
Essence of Twilight ak+q 7.0
FREEF4LL YUKIYANAGI 7.0
Scarlet Cage Daisuke Kurosawa 7.0
Scarlet Lance MASAKI (ZUNTATA) 7.0
VECTOЯ WHITEFISTS 7.0
amygdata nitro 7.1
Astral tale Noah 7.1
Black Territory DJ Myosuke 7.1
Evoltex (poppi'n mix) Arch vs n3pu 7.1
Iconoclast Yamajet 7.1
Metallic Punisher INNOCENT NOIZE 7.1
next to you uma feat. 橘花音 7.1
cyanine jioyi 7.2
Cybernecia Catharsis Tanchiky 7.2
Solitary Dream ak+q feat. Sennzai 7.2
Yosakura Fubuki A.SAKA 7.2
A Wandering Melody of Love からとP⍺ոchii少年 feat.はるの 7.3
Alexandrite WAiKURO 7.3
corps-sans-organes cybermiso 7.3
Dreadnought Mastermind (xi + nora2r) 7.3
Lost Civilization Laur vs CK 7.3
Mirzam Aoi vs. siqlo 7.3
Vicious Heroism Kobaryo 7.3
αterlβus Aoi 7.3
BLRINK Sta 7.4
Filament Puru 7.4
GLORY:ROAD uma vs. モリモリあつし 7.4
Heavensdoor LeaF 7.4
Modelista HiTECH NINJA 7.4
Monochrome Princess polysha 7.4
ouroboros -twin stroke of the end- Cranky VS MASAKI 7.4
qualia -ideaesthesia- nitro 7.4
γuarδina Aoi 7.4
Be There PSYQUI 7.5
Chronostasis 黒皇帝 7.5
DataErr0r Lunatic Sounds 7.5
Heavenly caress Noah 7.5
Illegal Paradise gmtn. (witch's slave) 7.5
Nirv lucE しーけー 7.5
Singularity ETIA. 7.5
Valhalla:0 Juggernaut. 7.5
carmine:scythe かゆき 7.6
conflict siromaru + cranky 7.6
CROSS†SOUL HyuN feat. Syepias 7.6
Dreamin' Attraction!! 翡乃イスカ 7.6
Party Vinyl モリモリあつし 7.6
Ikazuchi 光吉猛修 7.7
Red and Blue Silentroom 7.7
Tiferet xi + Sta 7.7
Sheriruth Team Grimoire 7.8
Level 8
Cyaegha USAO 8.1
Ether Strike Akira Complex 8.2
PRAGMATISM Laur 8.2
Axium Crisis ak+q 8.3
IZANA t+pazolite vs P*Light 8.3
Halcyon xi 8.5
Ringed Genesis Edelritter 8.5
Level 9
Grievous Lady Team Grimoire vs Laur 9.1
Fracture Ray Sakuzyo 9.2
SAIKYO STRONGER REDALiCE vs USAO 9.3
dropdead Frums 9.5

Future

Song Artist Chart Constant
Level 7
Blossoms T2Kazuya 7.0
Fairytale chitose 7.0
Sayonara Hatsukoi REDSHiFT 7.0
Vexaria ak+q 7.0
Brand new world U-ske 7.5
Clotho and the stargazer しーけー 7.5
Dement ~after legend~ Lunatic Sounds 7.5
Dream goes on Tiny Minim 7.5
Infinity Heaven HyuN 7.5
inkar-usi DIA 7.5
Moonlight of Sand Castle 旅人E 7.5
Paradise Sound Souler 7.5
Rise Combatplayer 7.5
Romance Wars U-ske (feat. lueur) 7.5
Suomi Aire 7.5
Level 8
Relentless Akira Complex 8.0
Diode Kolaa 8.1
Hikari THB 8.1
I've heard it said Combatplayer 8.1
1F√ WHITEFISTS 8.2
Genesis Iris 8.2
Hall of Mirrors Sta 8.2
Lucifer chitose 8.2
One Last Drive REDSHiFT 8.2
Bookmaker (2D Version) Kobaryo 8.3
Dot to Dot feat. shully Mameyudoufu 8.3
Oblivia Saiph 8.3
Shades of Light in a Transcendent Realm ak+q 8.3
Tie me down gently 溝口ゆうま feat. 大瀬良あい 8.3
Lumia sky_delta 8.4
Moonheart 翡乃イスカ 8.4
Purgatorium お月さま交響曲 8.4
Rabbit In The Black Room Rabbit House 8.4
REconstruction Ryazan 8.4
Snow White Puru 8.4
Babaroque cYsmix 8.5
Chelsea 7mai 8.5
cry of viyella Laur 8.5
Dandelion Farhan 8.5
Harutopia ~Utopia of Spring~ A-zu-ra 8.5
Reinvent Sound Souler 8.5
world.execute(me); Mili 8.5
FREEF4LL YUKIYANAGI 8.6
Gekka (Short Version) Nhato 8.6
Grimheart Puru 8.6
Journey ARForest 8.6
Silent Rush Soleily 8.6
Call My Name feat. Yukacco Mameyudoufu 8.7
Senkyou MYTK 8.7
Antithese Blacklolita 8.8
Flashback ARForest 8.8
next to you uma feat. 橘花音 8.8
Particle Arts Virtual Self 8.8
Solitary Dream ak+q feat. Sennzai 8.8
Surrender void 8.8
Vivid Theory ak+q 8.8
Evoltex (poppi'n mix) Arch vs n3pu 8.9
Maze No.9 アリスシャッハと魔法の楽団 8.9
memoryfactory.lzh Frums 8.9
MERLIN REDALiCE 8.9
dropdead Frums 9.1
Level 9
Empire of Winter Street 9.0
Flyburg and Endroll アリスシャッハと魔法の楽団 9.0
Give Me a Nightmare アリスシャッハと魔法の楽団 9.0
Kanagawa Cyber Culvert 南ゆに 9.0
ReviXy ikaruga_nex 9.0
Chronostasis 黒皇帝 9.1
Essence of Twilight ak+q 9.1
Faint Light Taishi 9.1
Iconoclast Yamajet 9.1
La'qryma of the Wasteland DJ Noriken 9.1
qualia -ideaesthesia- nitro 9.1
Anökumene Jun Kuroda 9.2
Libertas Zekk 9.2
Lost Civilization Laur vs CK 9.2
Phantasia Yunosuke 9.2
Rugie Feryquitous feat.Sennzai 9.2
Strongholds Yooh 9.2
Auxesia ginkiha 9.3
Blaster Massive New Krew 9.3
Feels So Right feat. Renko Mysteka 9.3
GOODTEK (Arcaea Edit) EBIMAYO 9.3
Ignotus ak+q 9.3
Oracle TQ☆ 9.3
Syro Mitomoro 9.3
Be There PSYQUI 9.4
CROSS†SOUL HyuN feat. Syepias 9.4
Equilibrium Maozon 9.4
Impure Bird MIssionary 9.4
Red and Blue Silentroom 9.4
VECTOЯ WHITEFISTS 9.4
Yosakura Fubuki A.SAKA 9.4
Your voice so... feat. Such PSYQUI 9.4
AI[UE]OON MYUKKE. 9.5
Astral tale Noah 9.5
Cybernecia Catharsis Tanchiky 9.5
DataErr0r Lunatic Sounds 9.5
OMAKENO Stroke t+pazolite 9.5
Party Vinyl モリモリあつし 9.5
Specta Junk 9.5
STAGER (ALL STAGE CLEAR) Ras 9.5
amygdata nitro 9.6
Avant Raze Sampling Masters MEGA 9.6
carmine:scythe かゆき 9.6
Dreamin' Attraction!! 翡乃イスカ 9.6
Fallensquare Silentroom 9.6
Illegal Paradise gmtn. (witch's slave) 9.6
LunarOrbit -believe in the Espebranch road- Apo11o program ft. 大瀬良あい 9.6
Monochrome Princess polysha 9.6
Vindication Laur 9.6
Level 9+
A Wandering Melody of Love からとP⍺ոchii少年 feat.はるの 9.7
Altale Sakuzyo 9.7
BATTLE NO.1 TANO*C Sound Team 9.7
Black Lotus wa. 9.7
Black Territory DJ Myosuke 9.7
BLRINK Sta 9.7
Filament Puru 9.7
Lethaeus Silentroom 9.7
Quon Feryquitous 9.7
Scarlet Cage Daisuke Kurosawa 9.7
Sulfur ぺのれり 9.7
The Message Jun Kuroda 9.7
Dreadnought Mastermind (xi + nora2r) 9.8
DX Choseinou Full Metal Shojo IOSYS TRAX (uno with.ちよこ) 9.8
Einherjar Joker DJ Genki vs Gram 9.8
Heavenly caress Noah 9.8
Linear Accelerator THE SHAFT 9.8
Lost Desire Powerless feat. Sennzai 9.8
Memory Forest ETIA. 9.8
SUPERNOVA BACO 9.8
Antagonism Yooh vs. siromaru 9.9
Arcahv Feryquitous 9.9
Corruption 3R2 9.9
Heavensdoor LeaF 9.9
Nhelv Silentroom 9.9
SOUNDWiTCH HATE 9.9
Level 10
Alexandrite WAiKURO 10.0
Mirzam Aoi vs. siqlo 10.0
Modelista HiTECH NINJA 10.0
trappola bewitching gmtn. 10.0
Vicious Heroism Kobaryo 10.0
conflict siromaru + cranky 10.1
PRAGMATISM Laur 10.1
Scarlet Lance MASAKI (ZUNTATA) 10.1
IZANA t+pazolite vs P*Light 10.2
Metallic Punisher INNOCENT NOIZE 10.2
Sheriruth Team Grimoire 10.2
αterlβus Aoi 10.2
Ether Strike Akira Complex 10.3
Nirv lucE しーけー 10.3
Garakuta Doll Play t+pazolite 10.4
Valhalla:0 Juggernaut. 10.4
Ikazuchi 光吉猛修 10.5
γuarδina Aoi 10.5
corps-sans-organes cybermiso 10.6
cyanine jioyi 10.6
GLORY:ROAD uma vs. モリモリあつし 10.6
Tempestissimo t+pazolite 10.6
Tiferet xi + Sta 10.6
Level 10+
Halcyon xi 10.7
ouroboros -twin stroke of the end- Cranky VS MASAKI 10.7
Singularity ETIA. 10.7
Cyaegha USAO 10.8
Dantalion Team Grimoire 10.8
Ringed Genesis Edelritter 10.8
#1f1e33 かめりあ(EDP) 10.9
Axium Crisis ak+q 10.9
World Vanquisher void (Mournfinale) 10.9
Level 11
SAIKYO STRONGER REDALiCE vs USAO 11.0
Fracture Ray Sakuzyo 11.2
Grievous Lady Team Grimoire vs Laur 11.3

Beyond

Song Artist Chart Constant
Level 8
Vexaria ak+q 8.8
Level 9
Fairytale chitose 9.5
Infinity Heaven HyuN 9.6
Level 9+
GOODTEK (Arcaea Edit) EBIMAYO 9.8
Level 11
Tempestissimo t+pazolite 11.5

Inferring Chart Constants

There are two primary methods currently in use for inferring chart constants. It is advisable to first understand how Potential is calculated before understanding these methods.

Fresh History Method

Developed by choka_noah, deprecated since v3.0.0

This method relies on the convention that Play Rating = Chart Constant when Score = 9,500,000.

  1. Create a new account.
  2. Play the same chart 3 times in a row and try to score as close to 9,500,000 on each of them.
  3. Multiply your Potential by 10 to obtain the Chart Constant of that chart.

Explanation

This method exploits the formula for calculating Potential, as detailed here.

  • By playing the same chart 3 times in a row on a new account, we have 3 Play Ratings under Recent Entries, and 1 Play Rating under Best Entries.
  • By scoring 9,500,000 on each play, we ensure that all 4 Play Ratings have the same value as the Chart Constant.

In this situation, the formula for calculating Potential becomes:

$ \text{Potential}=\dfrac{4\times\text{Play Rating}}{40}=\dfrac{\text{Chart Constant}}{10} $

Hence, when we multiply the Potential by 10, this yields the Chart Constant.

Example

Chart: Dandelion [FTR]
Recent Entries
  Trial 1: 9,501,391
  Trial 2: 9,501,390
  Trial 3: 9,501,385
Best Entries
  Trial 1: 9,501,391
Potential
  Trial 1: 0.43 (+0.43)
  Trial 2: 0.64 (+0.21)
  Trial 3: 0.86 (+0.22)

Therefore, Dandelion [FTR] has a chart constant of 8.6.

Note: dropdead's Past chart has a very low note count of 44, so it is impossible to score close to 9,500,000.

This method is simple to understand and perform, but is impractical since it requires creation of a new account for every chart.

Since v3.0.0, all repeated entries in the recent 10 entries will not stack with old entries but rather replace them, rendering this method useless.

Step Method

Developed by robert_cpp.

This method uses the formula for steps gained in World Mode and Play Rating in reverse.

  1. Select the Partner with highest STEP stat and activate as many multipliers as possible (optional but increases precision).
  2. Play the chart on World Mode (Track Lost is allowed).
  3. Check Score and Steps Gained.
  4. Calculate Score Modifier from Score (see page for formula).
  5. Calculate Chart Constant with the formula:
$ \text{Chart Constant}=\left(\dfrac{\text{Steps Gained}\times\frac{50}{\text{STEP Stat}}-2.5}{2.45}\right)^2-\text{Score Modifier} $

This method requires no explanation since it purely relies on the formula, but is complicated due to the presence of numerical errors. For this reason, it is better to perform this method using a spreadsheet rather than by hand.

Numerical Errors

The displayed values for Base Steps, STEP stat and Steps Gained all have numerical errors in general. They usually have many decimals but are rounded to one decimal place. For this reason, the Chart Constant might have an error range greater than 0.1, and the error margin needs to be considered.

An error margin for the Base Steps can be obtained from the rounded Base Steps, Steps Gained and STEP stat, all which can be read from the game directly. Selecting a Partner with high STEP stat helps to reduce this error margin, which reduces the Chart Constant's error margin as well.

$ \text{Base Steps (Lower)} = \max\left\{\dfrac{\text{Steps Gained}}{\text{STEP Stat}}\times50,\left\lfloor\text{Base Steps}\right\rfloor_{0.1}\right\} $ $ \text{Base Steps (Upper)} = \min\left\{\dfrac{\text{Steps Gained}+0.1}{\text{STEP Stat}}\times50,\left\lceil\text{Base Steps}\right\rceil_{0.1}\right\} $

Since the introduction of Legacy chapters in v1.7.0 and Boost in v2.4.0, multiplying the Steps Gained generally reduces the error margin regardless of the selected Partner, hence increasing precision.

Spreadsheet

robert_cpp's original spreadsheet is available here (does not allow grade EX scores), and an extended version by GKWS is available here. A copy of it can be saved to your own Google Drive for personal use. Simply fill in the blanks in the 'Input' section and it will attempt to derive the Chart Constant at the 'Output'.

Example:

Chart: carmine:scythe [FTR]
  Score: 9,562,787 (AA)
  Base Steps: 10.1
  Steps Gained: 20.7
  STEP Stat: 102
  Base Steps (Lower): max(20.7/2.04, 10.1) = 10.147
  Base Steps (Upper): min((20.7+0.1)/2.04, 10.1+0.1) = 10.196
  Chart Constant (Lower): 9.524490036
  Chart Constant (Upper): 9.649682062

Since the only chart constant between the lower and upper bounds is 9.6, carmine:scythe [FTR] has a chart constant of 9.6.

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