Pokémon GO Catch Rate Calculator

Estimate catch probability with realistic trainer bonus controls today. Compare balls, berries, medals, curves, and throws. Download results and plan safer raids with confidence now.

Advanced Calculator

Example Data Table

Scenario BCR CPM Ball Berry Throw Curve Medal
Legendary raid, strong throw 2% 0.5974 Ultra Golden Razz Excellent Yes Platinum
Weather raid boss 2% 0.667934 Premier Golden Razz Great Yes Gold
Common wild catch 40% 0.51739395 Poké Ball No Berry Nice No Silver

Formula Used

The calculator uses this capture model:

P = 1 - (1 - BCR / (2 × CPM)) ^ M

BCR is the base capture rate as a decimal. CPM is the CP multiplier for the encounter level. M is the combined multiplier from the ball, berry, throw, curve, medal, encounter, adventure effect, and any custom bonus.

The cumulative chance across many throws is:

C = 1 - (1 - P) ^ N

The flee estimate assumes the Pokémon can flee after a failed throw. It is only a planning estimate.

How to Use This Calculator

  1. Enter the Pokémon name or encounter label.
  2. Add the base capture rate as a percentage.
  3. Choose a CP multiplier preset or enter a custom CPM.
  4. Select ball, berry, throw quality, medal, and curve options.
  5. Add encounter and event modifiers when needed.
  6. Enter the number of throws for cumulative odds.
  7. Press Calculate to view the result above the form.
  8. Use CSV or PDF buttons to download your result.

Physics View of Catch Probability

A Pokémon GO catch is not a physical collision, yet it can be studied like an event model. Each throw is an attempt. The ball, berry, curve, medal, and circle accuracy change the strength of that attempt. The calculator converts those choices into one combined modifier.

Why Modifiers Matter

Small bonuses can become powerful when they multiply together. An excellent curve with a strong berry can greatly improve a hard raid catch. This is why planning matters. Players often remember the ball type, but they forget medal bonuses and throw quality. Both can shift the final chance.

Base Rate and Level

The base capture rate measures species difficulty. A common wild Pokémon may have a high rate. A legendary raid boss often has a low rate. The CP multiplier represents encounter level. Higher values usually make the catch harder. Weather boosted encounters can therefore feel more difficult, even with the same species.

Single Throw and Many Throws

The first result shows the chance for one successful contact. The cumulative result shows the chance after several throws. This is useful for raids, research rewards, and wild encounters. Ten low odds throws can still create a fair combined chance. One very strong throw can also beat many weak throws.

Using Exact Ring Ratio

The exact ring setting is for advanced users. A smaller target ring creates a stronger throw bonus. Enter zero for a perfect tiny ring. Enter one for a full size ring. Most users can choose Nice, Great, or Excellent instead.

Exporting Results

The CSV file is useful for spreadsheets. The PDF file is useful for sharing a short report. You can compare different balls, berries, medals, and curves. Try changing one setting at a time. This makes the final effect easier to understand. The calculator is a planning aid, not a guarantee.

FAQs

What is base capture rate?

It is the species capture difficulty before player bonuses. A higher value means the Pokémon is easier to catch under the same encounter conditions.

What is CP multiplier?

CP multiplier is tied to encounter level. Higher encounter levels usually lower the final catch chance when the same base rate and bonuses are used.

Does a curve ball help?

Yes. A curve ball adds a strong multiplier. It can improve results more than many players expect, especially with a berry and good throw quality.

How are dual type medals handled?

When a secondary medal is selected, the calculator averages both medal multipliers. When none is selected, only the primary medal is used.

What does cumulative chance mean?

It estimates the chance of at least one catch across several throws. It assumes each throw has the same single throw probability.

Is the flee estimate exact?

No. It is a planning estimate. It assumes flee chance happens after each failed throw and that each attempt keeps the same catch chance.

Can I use custom modifiers?

Yes. Custom fields let you test special events, research assumptions, or private balance data without changing the calculator code.

Does Master Ball use the formula?

No. The calculator treats Master Ball as a guaranteed catch. It bypasses the regular multiplier calculation and returns a full chance.

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Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.