Probability Chart
Example Data Table
| Creature Type | HP | Catch Rate | Ball | Status | Expected Result |
|---|---|---|---|---|---|
| Common | 20 / 100 | 190 | Great | None | High chance |
| Rare | 25 / 120 | 45 | Ultra | Sleep | Medium chance |
| Legendary | 5 / 180 | 3 | Ultra | Freeze | Low chance |
Formula Used
HP factor = ((Max HP × 3) − (Current HP × 2)) ÷ (Max HP × 3).
Modified rate = (HP factor × base catch rate × ball bonus) + status bonus.
Single throw chance = modified rate ÷ 255.
Multiple attempt chance = 1 − (1 − single chance)attempts.
How to Use This Calculator
Enter the target maximum HP and current HP. Add the base catch rate. Choose the ball bonus and status effect. Then enter planned throw attempts. Press calculate. The result appears above the form. Use CSV or PDF buttons to save the output.
Advanced Gen 2 Catch Rate Guide
Why HP Matters
Lower HP improves capture odds. The calculator gives stronger results when current HP is close to one. This matches the battle idea of weakening the target before throwing a ball.
Why Status Matters
Status effects add direct value. Sleep and freeze give the strongest boost. Poison, burn, and paralysis still help, but their impact is smaller. No status gives no extra benefit.
Ball Choice
Better balls multiply the base rate. A rare target often needs a stronger ball. A common target may be easy with a normal ball. The tool lets you compare choices quickly.
Multiple Attempts
One throw may fail. Several throws raise total success probability. This calculator shows the combined chance across repeated attempts. This helps users plan item use more clearly.
Physics Angle
The model uses probability, ratios, and repeated trials. These ideas are common in physics simulations. Each throw acts like an independent event with a fixed success chance.
Practical Use
Use realistic HP values. Pick the correct status. Try several ball bonuses. Compare outputs before deciding your strategy. The calculator is best for estimation, planning, and learning probability behavior.
FAQs
What is a Gen 2 catch rate?
It is a numeric value that helps estimate capture success. Higher values usually mean easier captures.
Does lower HP improve the result?
Yes. Lower current HP increases the HP factor and improves the modified catch value.
Which status is best?
Sleep and freeze are best in this calculator because they add the largest status bonus.
Can this predict exact game behavior?
It gives a strong educational estimate. Exact game routines may include special internal checks.
Why use multiple attempts?
Repeated throws increase total success probability. The calculator combines those chances mathematically.
What does modified rate mean?
It is the adjusted capture value after HP, ball bonus, and status bonus are applied.
Can I export the result?
Yes. Use the CSV and PDF buttons after calculating a result.
Is this suitable for learning probability?
Yes. It shows ratios, independent attempts, and cumulative chance in a simple way.