Pokemon Shiny Odds Calculator
Estimate shiny encounter probability with charm, Masuda method, and custom extra rolls for practical hunt planning.
Odds Inputs
Hunt Planning Guidance
- Cumulative chance increases with encounters, but variance remains real.
- Use required encounters for schedule planning, not guaranteed outcomes.
- Compare methods by adjusting extra rolls and modifiers before committing.
Shiny Odds
0.0732%
Per Encounter Chance
51.93%
Cumulative Chance
Base Odds1/4096
Total Rolls3
Expected Encounters1366
For 90.0%3,144
Milestone Chances
- 100 encounters: 7.06%
- 500 encounters: 30.67%
- 1000 encounters: 51.93%
Practical Note
Probabilities are independent per encounter; even high cumulative odds cannot guarantee a shiny in finite attempts.
Formulas Used
p(roll) = 1 / denominator
p(encounter) = 1 - (1 - p(roll))^(totalRolls)
p(cumulative) = 1 - (1 - p(encounter))^(encounters)
required = ceil(ln(1-target) / ln(1-p(encounter)))
FAQ
Do shiny rolls stack?
Yes. Charm, Masuda, and method rolls are treated as additional independent checks per encounter.
Why show expected encounters?
It is a planning baseline for time budgeting, not a promise for exact outcome timing.
Can I model custom game modes?
Yes. Use custom denominator and extra rolls to approximate altered odds environments.
Pokemon Shiny Odds Calculator planning guide
Estimate shiny encounter odds based on encounter count, charm bonuses, and breeding methods.
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Pokemon Shiny Odds Calculator FAQ
Do shiny rates vary by game?
Yes. Base shiny rates and bonus methods differ by generation, so use the correct base rate.
How does Masuda method change odds?
Masuda method adds extra shiny rolls, which increases overall probability per egg.
What does cumulative probability mean?
It is the chance of at least one shiny after a given number of encounters or eggs.