Gacha At Least One Pull
Calculator

Inputs

At least one success probability (%)
63.396765

Results

At least one success probability (%)
63.396765
Zero successful pulls probability (%)
36.603234
Expected successful pulls
1

Gaming results

At least one success probability (%)63.396765
Zero successful pulls probability (%)36.603234
Expected successful pulls1

formula-map diagram

At least one success probability (%)
63.396765
Zero successful pulls probability (%)
36.603234
Expected successful pulls
1

Game math relationship

Formula

P(≥1) = 1 − (1 − p)^n

= 63.396765872677

Note

This is a simplified model: it applies the standard probability or game-math formula to the numbers you entered. Real games add pity systems, drop-rate tiers, rounding, server-side variance and balance patches, so treat the result as an estimate rather than a guarantee.

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