Pokémon Heavy Ball Catch Probability Calculator
Enter the weight of the Pokémon in kg:
Here's a comprehensive table summarizing all you need to know about the Pokémon Heavy Ball catch probability:
Heavy Ball Catch Probability
| Pokémon Weight Range (lbs) | Catch Rate Modifiers | Effective Catch Rate |
|---|---|---|
| < 225.8 | -20 | Catch Rate - 20 |
| 225.8 – 451.5 | 0 | Catch Rate + 0 |
| 451.5 – 677.3 | 20 | Catch Rate + 20 |
| 677.3 – 903.0 | 30 | Catch Rate + 30 |
| > 903.0 | 40 | Catch Rate + 40 |
Key points about the Heavy Ball:
- The Heavy Ball's effectiveness is based on the target Pokémon's weight.
- It's most effective against very heavy Pokémon, with a +40 modifier for those weighing over 903.0 lbs (409.6 kg).
- It has a negative effect (-20) on light Pokémon weighing less than 225.8 lbs (102.4 kg).
- For Pokémon in the middle weight ranges, the effect is either neutral or slightly positive.
- The base catch rate of the Pokémon species is still a factor in the overall catch probability.
- In Pokémon Sun and Moon, if the modified catch rate becomes negative, it's set to 0, making it impossible to catch very light Pokémon with low base catch rates using a Heavy Ball1.
- This issue was fixed in Ultra Sun and Ultra Moon and later games, where the minimum catch rate is set to 11.
- The Heavy Ball can be particularly effective for catching large legendary Pokémon, which often have low base catch rates but high weights.
- The effectiveness of the Heavy Ball has varied slightly across different generations of Pokémon games, but the general principle of being more effective on heavier Pokémon has remained consistent1.
Remember that other factors, such as the Pokémon's current HP and any status conditions, also play a role in the overall catch probability.