Songs by Level

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
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
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
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
Particle Arts	Virtual Self	3.5
SOUNDWiTCH	HATE	3.5
Specta	Junk	3.5
Syro	Mitomoro	3.5
Your voice so... feat. Such	PSYQUI	3.5
Heavenly caress	Noah	3.5
Level 4
GOODTEK (Arcaea Edit)	EBIMAYO	3.5
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 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
FREEF4LL	YUKIYANAGI	4.0
Alexandrite	WAiKURO	4.5
Astral tale	Noah	4.5
Bookmaker (2D Version)	Kobaryo	4.5
conflict	siromaru + cranky	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
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
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
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
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 Lance	MASAKI (ZUNTATA)	7.0
VECTOЯ	WHITEFISTS	7.0
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
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
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 6
Sayonara Hatsukoi	REDSHiFT	6.5
Level 7
Fairytale	chitose	7.2
Romance Wars	U-ske (feat. lueur)	7.4
Vexaria	ak+q	7.4
Clotho and the stargazer	しーけー	7.5
Dream goes on	Tiny Minim	7.5
Blossoms	T2Kazuya	7.6
Infinity Heaven	HyuN	7.6
Moonlight of Sand Castle	旅人E	7.7
Rise	Combatplayer	7.7
Suomi	Aire	7.7
inkar-usi	DIA	7.8
Paradise	Sound Souler	7.8
Brand new world	U-ske	7.9
Dement ~after legend~	Lunatic Sounds	7.9
Level 8
One Last Drive	REDSHiFT	8.0
Relentless	Akira Complex	8.1
Diode	Kolaa	8.2
Hall of Mirrors	Sta	8.2
I've heard it said	Combatplayer	8.2
Bookmaker (2D Version)	Kobaryo	8.3
Hikari	THB	8.3
Lucifer	chitose	8.3
Genesis	Iris	8.4
Purgatorium	お月さま交響曲	8.4
Shades of Light in a Transcendent Realm	ak+q	8.4
Silent Rush	Soleily	8.4
Solitary Dream	ak+q feat. Sennzai	8.4
Tie me down gently	溝口ゆうま feat. 大瀬良あい	8.4
Flashback	ARForest	8.5
Lumia	sky_delta	8.5
MERLIN	REDALiCE	8.5
Moonheart	翡乃イスカ	8.5
Rabbit In The Black Room	Rabbit House	8.5
Chelsea	7mai	8.6
Dandelion	Farhan	8.6
Grimheart	Puru	8.6
Harutopia ~Utopia of Spring~	A-zu-ra	8.6
Journey	ARForest	8.6
Reinvent	Sound Souler	8.6
Snow White	Puru	8.6
Babaroque	cYsmix	8.7
cry of viyella	Laur	8.7
Dot to Dot feat. shully	Mameyudoufu	8.7
FREEF4LL	YUKIYANAGI	8.7
next to you	uma feat. 橘花音	8.7
REconstruction	Ryazan	8.7
Antithese	Blacklolita	8.8
Call My Name feat. Yukacco	Mameyudoufu	8.8
memoryfactory.lzh	Frums	8.8
Particle Arts	Virtual Self	8.8
Senkyou	MYTK	8.8
Surrender	void	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
ReviXy	ikaruga_nex	8.9
dropdead	Frums	9.1
Level 9
Empire of Winter	Street	9.0
Essence of Twilight	ak+q	9.0
Kanagawa Cyber Culvert	南ゆに	9.0
Rugie	Feryquitous feat.Sennzai	9.0
Chronostasis	黒皇帝	9.1
Strongholds	Yooh	9.1
Anökumene	Jun Kuroda	9.2
Flyburg and Endroll	アリスシャッハと魔法の楽団	9.2
La'qryma of the Wasteland	DJ Noriken	9.2
Libertas	Zekk	9.2
Phantasia	Yunosuke	9.2
qualia -ideaesthesia-	nitro	9.2
STAGER (ALL STAGE CLEAR)	Ras	9.2
GOODTEK (Arcaea Edit)	EBIMAYO	9.3
Oracle	TQ☆	9.3
AI[UE]OON	MYUKKE.	9.4
Astral tale	Noah	9.4
Auxesia	ginkiha	9.4
Iconoclast	Yamajet	9.4
LunarOrbit -believe in the Espebranch road-	Apo11o program ft. 大瀬良あい	9.4
Your voice so... feat. Such	PSYQUI	9.4
Be There	PSYQUI	9.5
Black Territory	DJ Myosuke	9.5
Blaster	Massive New Krew	9.5
DataErr0r	Lunatic Sounds	9.5
Impure Bird	MIssionary	9.5
Lethaeus	Silentroom	9.5
Lost Civilization	Laur vs CK	9.5
Specta	Junk	9.5
Syro	Mitomoro	9.5
VECTOЯ	WHITEFISTS	9.5
A Wandering Melody of Love	からとP⍺ոchii少年 feat.はるの	9.6
carmine:scythe	かゆき	9.6
CROSS†SOUL	HyuN feat. Syepias	9.6
Heavenly caress	Noah	9.6
Linear Accelerator	THE SHAFT	9.6
OMAKENO Stroke	t+pazolite	9.6
Vindication	Laur	9.6
Yosakura Fubuki	A.SAKA	9.6
BATTLE NO.1	TANO*C Sound Team	9.7
Corruption	3R2	9.7
Dreadnought	Mastermind (xi + nora2r)	9.7
DX Choseinou Full Metal Shojo	IOSYS TRAX (uno with.ちよこ)	9.7
Filament	Puru	9.7
Ignotus	ak+q	9.7
Monochrome Princess	polysha	9.7
Quon	Feryquitous	9.7
Red and Blue	Silentroom	9.7
SUPERNOVA	BACO	9.7
The Message	Jun Kuroda	9.7
Avant Raze	Sampling Masters MEGA	9.8
Cybernecia Catharsis	Tanchiky	9.8
Dreamin' Attraction!!	翡乃イスカ	9.8
Fallensquare	Silentroom	9.8
Illegal Paradise	gmtn. (witch's slave)	9.8
Memory Forest	ETIA.	9.8
Nhelv	Silentroom	9.8
Party Vinyl	モリモリあつし	9.8
Sulfur	ぺのれり	9.8
Alexandrite	WAiKURO	9.9
Einherjar Joker	DJ Genki vs Gram	9.9
Mirzam	Aoi vs. siqlo	9.9
SOUNDWiTCH	HATE	9.9
Heavensdoor	LeaF	10.0
Modelista	HiTECH NINJA	10.0
trappola bewitching	gmtn.	10.0
Vicious Heroism	Kobaryo	10.0
Level 9+
IZANA	t+pazolite vs P*Light	10.1
PRAGMATISM	Laur	10.1
conflict	siromaru + cranky	10.2
Ether Strike	Akira Complex	10.2
Garakuta Doll Play	t+pazolite	10.3
Metallic Punisher	INNOCENT NOIZE	10.3
Nirv lucE	しーけー	10.3
Scarlet Lance	MASAKI (ZUNTATA)	10.3
Ikazuchi	光吉猛修	10.4
Singularity	ETIA.	10.4
cyanine	jioyi	10.5
GLORY：ROAD	uma vs. モリモリあつし	10.5
Tiferet	xi + Sta	10.5
Valhalla:0	Juggernaut.	10.5
αterlβus	Aoi	10.5
γuarδina	Aoi	10.5
Axium Crisis	ak+q	10.6
ouroboros -twin stroke of the end-	Cranky VS MASAKI	10.6
Sheriruth	Team Grimoire	10.6
World Vanquisher	void (Mournfinale)	10.6
Halcyon	xi	10.7
Ringed Genesis	Edelritter	10.7
Cyaegha	USAO	10.8
Level 10
SAIKYO STRONGER	REDALiCE vs USAO	11.0
Fracture Ray	Sakuzyo	11.1
Grievous Lady	Team Grimoire vs Laur	11.2

Inferring Chart Constants

There are two primary methods currently in use for inferring chart constants.

Fresh History (choka method)

This method relies on the fact that for a score of 9,500,000, Chart Potential = Chart Constant.

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. Check value of Potential, and multiply by 10 to obtain Chart Constant.

Explanation:

The formula for potential is as follows:

${\text{Potential}}={\dfrac {P_{R}+P_{B}}{40}}$

where:

$P_R$ is the sum of Chart Potentials in the 10 best out of the 30 recent entries,

$P_B$ is the sum of Chart Potentials in the 30 all-time best entries.

Since there are only 3 songs in recent entries and 1 in best entries, the Potential becomes:

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

In other words, scoring 9,500,000 on a chart 3 times results in a Potential that, when multiplied by 10, yields the Chart Constant.

Alternate Method:

This method should ideally be performed on a new account, where both the recent entries and best entries are empty, so that an accurate value is obtained. However, if an older account is used:

1. Ensure that the song is easy enough so that the Chart Potential would not end up in the best entries.
2. Multiply Potential by 30, which would give$P_B$.
3. Empty out the 30 recent entries by playing 30 short songs in a row and not doing anything.
4. Play the chart and observe change in Potential to obtain approximate value of Chart Constant.

Example:

[Chart] Dandelion [FTR]
Recent Entries (can have multiples of same chart)
  Trial 1: 9,501,391
  Trial 2: 9,501,390
  Trial 3: 9,501,385
Best Entries (cannot have multiples of same chart)
  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.

World Mode Steps (robert method)

This method relies on the formula for steps gained in World Mode, as well as the formula for Chart Potential for scores below 9,800,000 (grade AA and below).

1. Play the chart on World Mode.
2. Score below 9,800,000.
3. Check score and steps gained.
4. Calculate Chart Constant with the formula:

${\text{Chart Constant}}={\Bigl (}{\dfrac {{\text{Base Steps}}-2.5}{2.45}}{\Bigr )}^{2}-{\dfrac {{\text{Score}}-9,500,000}{300,000}}$

Base steps are the steps gained without factoring in the selected Partner's STEP stat.

The formulae for scores in grade EX are currently unknown.

Numerical Errors:

The displayed values for base steps, Partner STEP stat and steps gained are only accurate to one decimal place, so a Chart Constant of the same precision cannot be obtained from this formula alone. For this reason, the error margin needs to be considered. Obtaining the exact STEP stat of a Partner is possible, but requires network interception.

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 in-game. Selecting a Partner with high STEP stat helps to reduce this error margin, which reduces the Chart Constant's error margin as well.

${\text{Base Steps (Lower)}}=\max {\Bigl \{}{\dfrac {\text{Steps Gained}}{\text{STEP Stat}}}\times 50,{\bigl \lfloor }{\text{Base Steps}}{\bigr \rfloor }_{0.1}{\Bigr \}}$ ${\text{Base Steps (Upper)}}=\min {\Bigl \{}{\dfrac {{\text{Steps Gained}}+0.1}{\text{STEP Stat}}}\times 50,{\bigl \lceil }{\text{Base Steps}}{\bigr \rceil }_{0.1}{\Bigr \}}$

Since the introduction of Legacy chapters in 1.7, multiplying the gained Steps via Play+ reduces the error margin regardless of the selected Partner, as long as the steps gained is more than twice the base steps.

Calculation Spreadsheet:

Darkslime has translated robert's original spreadsheet 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'. For Play+, step multipliers can be factored into your Partner's STEP stat. Again, your score needs to be below 9,800,000.

Example:

[Chart] carmine:scythe [FTR]
 Score: 9,562,787 (AA)
 STEP: 10.1
 STEP with Partner Effect: 20.7
 Minimum: max(20.7/2.04, 10.1) = 10.147
 Maximum: min((20.7+0.1)/2.04, 10.1+0.1) = 10.196
 Chart constant derived from minimum: 9.524490036
 Chart constant derived from maximum: 9.649682062
 One decimal point rounded: 9.6

Therefore, carmine:scythe [FTR] has a chart constant of 9.6.