Pokemon Accuracy Calculator
A tool for competitive and casual trainers to calculate the true hit chance of a move.
The base accuracy of the move (e.g., Hydro Pump is 80, Thunder is 70).
The attacker’s accuracy stat stage (-6 to +6). Boosted by moves like Coil.
The defender’s evasion stat stage (-6 to +6). Boosted by moves like Double Team.
Select any items, abilities, or field effects that apply.
Final Hit Chance
Final Chance = Base Accuracy × Stat Modifier × Other Modifiers
Stat Stage Modifier
×1.00
Item/Ability Modifier
×1.00
Modified Base Accuracy
85%
What is a pokemon accuracy calculator?
A pokemon accuracy calculator is a specialized tool used to determine the precise probability of a Pokémon’s move successfully hitting its target. In the world of Pokémon, a move’s stated accuracy (like the 85% on Sludge Bomb) isn’t the final word. The actual chance to hit can be drastically changed by a variety of factors, including stat changes, abilities, held items, and even the weather. This calculator simplifies the complex in-game formula, allowing players to make more informed strategic decisions during battles.
This tool is invaluable for competitive players who need to know the exact odds of landing a crucial move, such as a high-power, low-accuracy attack like Focus Blast. It helps in risk assessment, letting a player decide whether to go for a safe, weaker move or a risky, powerful one that could turn the tide of battle. Casual players can also use it to better understand why their moves sometimes miss unexpectedly.
pokemon accuracy calculator Formula and Explanation
The game calculates the final chance of a move hitting through a multi-step formula. While the exact internal mechanics can involve large integer math, the principle can be simplified as a series of multiplications. The core formula is:
Final Accuracy = Move_Accuracy × Stage_Modifier × Other_Modifiers
Each component is critical. A high base accuracy can be undermined by a negative stage modifier, while a low base accuracy can be made reliable with positive modifiers like the ability Compound Eyes. Understanding these interactions is key to mastering Pokémon battling, and a core function of this pokemon accuracy calculator. For more tools, see our guide to pokemon iv calculator.
Variables Table
| Variable | Meaning | Unit / Type | Typical Range |
|---|---|---|---|
| Move_Accuracy | The base accuracy value of the move being used. | Percentage (%) | 1% – 100% (or ‘never misses’) |
| Stage_Modifier | A multiplier based on the difference between the attacker’s accuracy and the defender’s evasion stages. | Multiplier (x) | ×0.33 to ×3.0 |
| Other_Modifiers | A cumulative multiplier from items, abilities, and field effects. | Multiplier (x) | Varies (e.g., ×1.3 for Compound Eyes, ×0.9 for Bright Powder) |
Practical Examples
Example 1: A Simple Scenario
Imagine a Gengar using Focus Blast against a Snorlax. Gengar has no accuracy boosts and Snorlax has no evasion boosts.
- Inputs:
- Move’s Base Accuracy: 70%
- Attacker’s Accuracy Stage: 0
- Defender’s Evasion Stage: 0
- Other Modifiers: None
- Calculation:
- Stage Modifier: ×1.0
- Other Modifiers: ×1.0
- Final Accuracy: 70% × 1.0 × 1.0 = 70%
- Result: The Focus Blast has its standard 70% chance to hit.
Example 2: A Complex Scenario
Now, consider a Galvantula with the ability Compound Eyes holding a Wide Lens. It uses Thunder against a Flygon that has used Double Team once and is in a sandstorm with its Sand Veil ability active.
- Inputs:
- Move’s Base Accuracy: 70%
- Attacker’s Accuracy Stage: 0
- Defender’s Evasion Stage: +1
- Modifiers: Compound Eyes (Attacker), Wide Lens (Attacker), Sand Veil (Defender)
- Calculation:
- Stage Modifier (for +1 evasion): ×0.75
- Other Modifiers: ×1.3 (Compound Eyes) × ×1.1 (Wide Lens) × ×0.8 (Sand Veil) = ×1.144
- Final Accuracy: (70% × 1.144) × 0.75 = 80.08% × 0.75 = 60.06%
- Result: Despite Galvantula’s powerful accuracy boosts, Flygon’s evasion and ability reduce the chance of Thunder hitting to just over 60%. This shows how vital a pokemon accuracy calculator can be. Explore more strategies with our pokemon damage calculator.
How to Use This pokemon accuracy calculator
- Enter Base Accuracy: Start by inputting the base accuracy of the move you are using. You can find this in the move’s description in your game.
- Set Stat Stages: Adjust the “Attacker’s Accuracy Stage” and “Defender’s Evasion Stage” sliders to reflect any in-battle stat changes. Leave them at 0 if no changes have occurred.
- Select Modifiers: Check any boxes that apply to the current battle situation, such as the Compound Eyes ability or if the opponent is holding Bright Powder.
- Review the Results: The calculator will instantly update. The “Final Hit Chance” is your primary result. You can also see the breakdown of how stat stages and other modifiers contributed to this final value.
- Analyze the Chart: Use the visual chart to quickly compare the move’s original accuracy to its new, calculated accuracy.
Key Factors That Affect Pokemon Accuracy
- Accuracy and Evasion Stages: The most common way accuracy is modified. Moves like Hone Claws and Coil raise the user’s accuracy, while moves like Double Team and Minimize raise the target’s evasion. Each stage has a significant multiplicative effect.
- Abilities: Many abilities influence accuracy. Compound Eyes boosts the accuracy of the user’s moves by 30%. In contrast, abilities like Sand Veil and Snow Cloak boost evasion in their respective weather conditions.
- Held Items: Items can be a major factor. The Wide Lens provides a 10% boost to the holder’s accuracy, while the Bright Powder and Lax Incense cause incoming attacks to have their accuracy reduced by 10%.
- Weather: The weather can play a role. For example, in rain, the moves Thunder and Hurricane will bypass the accuracy check entirely and always hit (unless the target is in a semi-invulnerable state like from Dig or Fly).
- Move Effects: Certain moves can guarantee a hit or change accuracy. Moves like Aura Sphere and Swift are coded to never miss under normal circumstances. The move Gravity grounds all Pokémon and multiplies all move accuracies by 5/3, making inaccurate moves much more reliable.
- Unaware Ability: The Unaware ability is a unique factor, as it causes the Pokémon to ignore the opponent’s positive stat changes. A Pokémon with Unaware will ignore any evasion boosts the target has accumulated.
Mastering these factors is essential for high-level play. You can learn more about team building on our pokemon team builder page.
Frequently Asked Questions (FAQ)
1. Can a move’s accuracy go over 100%?
Yes, the calculation can result in a value over 100%. However, in-game, the final hit chance is capped at 100%. Any calculated value of 100 or more is simply treated as a guaranteed hit.
2. How do evasion-boosting moves like Double Team work?
Moves like Double Team and Minimize raise the user’s “Evasion Stage”. Each stage increase makes it progressively harder for the opponent to land an attack. One stage of evasion (+1) multiplies the opponent’s accuracy by ×0.75. Six stages (+6) multiplies it by ×0.33, meaning a 100% accurate move only has a 33% chance to hit.
3. What’s the difference between accuracy and evasion stages?
Accuracy stages are on the attacker’s side, making their moves more likely to hit. Evasion stages are on the defender’s side, making incoming moves less likely to hit. The final stage modifier is calculated as `Attacker’s Accuracy Stage – Defender’s Evasion Stage`.
4. Do moves like Swift and Aura Sphere ever miss?
Under normal circumstances, no. These moves are programmed to bypass the standard accuracy check. However, they will fail if the target is in a semi-invulnerable state (e.g., during the first turn of Fly, Dig, or Phantom Force).
5. How does the Wide Lens item work?
A Pokémon holding a Wide Lens gets a 10% multiplicative boost to the accuracy of all its moves. This is applied after the move’s base accuracy is determined. For example, a move with 80% accuracy becomes 88% (80 × 1.1).
6. Is there a limit to how much accuracy or evasion can be changed?
Yes, both accuracy and evasion stats can only be modified by a maximum of 6 stages in either direction (from -6 to +6).
7. What does the ability Compound Eyes do?
Compound Eyes is an ability that provides a 30% multiplicative boost to the accuracy of the Pokémon’s moves. This is a very powerful effect, making moves like Thunder (70% accuracy) become 91% accurate (70 × 1.3).
8. How do I interpret the results from the pokemon accuracy calculator?
The “Final Hit Chance” is the most important number. It tells you the percentage chance that your move will successfully land on the target in the specified scenario. Use this percentage to weigh the risk versus reward of your move choice. Understanding these odds is a step towards becoming a better battler, a topic we cover in our pokemon battle simulator guide.