Is the calculator exact?

The calculator is a starter decision helper. Add formulas, tables, and game-specific inputs when exact rates are available.

Primary tool

Anime Origins Calculator

Use this working summon probability calculator: enter a per-pull rate and pull count to see at-least-one odds, no-hit odds, expected successes, and the visible formula.

Inputs

Plan your next move

Progress stageCurrent goal

Output

Recommendation

Claim listed codes first, then spend rewards only after you know which upgrade path stays useful.

Use exact game rates when they are available. Until then, treat this as a conservative planning helper.

Summon probability calculator

Enter the rate shown on your current banner. This tool does not assume an official rate or a pity guarantee.

Per-pull chance (%)Number of pulls

Chance of at least one63.40%

Chance of none: 36.60%
Expected successes: 1.00

Formula: 1 − (1 − p)ⁿ. Expected successes: n × p. Results are mathematical estimates from your inputs, not official Anime Origins odds.

Turn pull odds into a roster plan

Browse unit roles after estimating your summon chance.

Verify banner assumptions

Check the data boundary before entering a current banner rate.