Arcaea Chart Constant Calculator

Show notes/tips

Partner STEP stat:
(including STEP bonuses from Partner skill, e.g. Mika Yurisaki)
Partner Lv 20-30
Non-maxed Tairitsu (Tempest) / Hikari (Fatalis)
Tips: choose a Partner with high STEP.
Note: Avoid Partners that change the score display (e.g. Lagrange, Awakened Lethe).
HARD skill Partners are recommended since songs can be failed early after achieving the required score (see below), and without hurting player Potential.
If dropped Potential isn't a concern, high STEP non-HARD Partners are also worth considering, since getting an early Track Lost due to getting distracted by the score isn't an issue, making it easier to achieve scores closer to the minimum threshold score.

Legacy Play+ map boosts (recommended if available)

Stamina boost:

x 1

x 2

x 4

x 6

Fragment boost:

x 1

x 1.1

x 1.25

x 1.5

Minimum required score: 0'000'000
Note: calculator gives invalid results if play score is lower than this.
Aim for a score no more than ~500'000 higher (very high STEP Partners (≥150) and Legacy map boosted plays have leeway to achieve higher scores).

Final play score:

Total map progress:
(after Partner Progress multiplier, but not including subsequent map bonuses from Partner skills, e.g. Awakened Luna)

Advanced options (rounding errors)

Map progress error (default setting assumes that the steps displayed in-game have been rounded down to 1 decimal place after calculation):

Map progress lower error:
Map progress upper error:

Partner STEP stat error (default setting assumes that STEP values displayed in-game have been rounded down to integer values from the actual STEP stat used in calculations; upper error can be set to 0 for fully maxed out Tairitsu GL/Tempest or Hikari Fatalis, or 0.5 for other Lv 20-30 Partners):

Partner STEP lower error:
Partner STEP upper error:

Lower bound on chart constant =
Upper bound on chart constant =
Estimated minimum chart constant =
Estimated maximum chart constant =