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Individual Values (IVs) are hidden statistics in the Pokemon games that determine how high each of a Pokemon's six base stats — HP, Attack, Defense, Special Attack, Special Defense, and Speed — can grow. Every Pokemon has IVs ranging from 0 to 31 for each stat, assigned randomly upon encounter or hatching. A Pokemon with 31 in a stat is said to have a 'perfect' or 'Best' IV in that stat. IVs add directly to a Pokemon's stat at level 100: a Pokemon with 31 Speed IVs will have exactly 31 more Speed than an identical Pokemon with 0 Speed IVs at level 100. The complete stat formula for levels above 1 is: Stat = floor(((2 x Base + IV + floor(EV/4)) x Level / 100 + 5) x Nature). HP uses a slightly different formula: HP = floor((2 x Base + IV + floor(EV/4)) x Level / 100) + Level + 10. IVs cannot be changed through normal gameplay in older generations, but since Generation VI, the Judge feature in the PC Box evaluates IVs in plain language (No Good, Decent, Pretty Good, Very Good, Fantastic, Best). In Generation VIII (Sword/Shield) and IX, Bottle Caps allow Hyper Training to make a stat behave as if it has 31 IVs for damage calculations, though the actual IV is not changed (relevant for breeding and passing on IVs). For competitive battling, a flawless Pokemon with 31s in all relevant stats is standard. Attacking Pokemon typically want 31 in HP, Attack or Sp.Atk, and Speed. Defensive Pokemon sometimes prefer 0 in Attack to minimize damage from moves like Foul Play and confusion self-hits. Understanding IVs is foundational for competitive Pokemon and efficient chain breeding or raid farming.
Stat (non-HP) = floor(((2*Base + IV + floor(EV/4)) * Level / 100 + 5) * NatureMultiplier) HP = floor((2*Base + IV + floor(EV/4)) * Level / 100) + Level + 10
- 1Step 1: Find the Pokemon's base stats from its species Pokedex entry.
- 2Step 2: Determine the IV (0-31) for the stat you are calculating.
- 3Step 3: Add EV contribution: floor(EV / 4).
- 4Step 4: Apply the formula with the Pokemon's current level.
- 5Step 5: Multiply by Nature (1.1, 1.0, or 0.9) and floor the result.
- 6Step 6: For HP, use the HP-specific formula which adds Level + 10 instead of the +5 and Nature step.
This is a fully optimized competitive Garchomp. With 252 EVs (contributing floor(252/4) = 63), 31 IVs, and a Jolly nature boosting Speed by 10%, Garchomp hits 327 Speed. Any reduction in IVs, EVs, or switching to a neutral nature would yield a noticeably lower speed tier.
Clefable is a premier defensive Pokemon, and maximizing HP helps it survive more hits. With 31 HP IVs and 252 HP EVs, it reaches 394 HP. Dropping HP IVs to 0 would reduce HP to 363 — a difference of 31 HP that can mean surviving an extra hit of residual damage.
Under Trick Room, slower Pokemon move first. Reuniclus with 30 base Speed wants the lowest possible Speed. Setting IVs to 0 and using a Brave nature with 0 Speed EVs yields 31 Speed at level 50, moving last (first under Trick Room) in competitive play.
The Destiny Knot held item causes 5 of the 6 IVs to be inherited from either parent. With both parents covering all 6 stats, the probability of a perfect 6IV offspring is roughly 1/64 with optimal Destiny Knot breeding. Most competitive breeders aim for 5IV Pokemon first, which is achievable in 50-100 eggs.
Competitive VGC and Smogon team building, representing an important application area for the Pokemon Iv Calc in professional and analytical contexts where accurate pokemon iv calculations directly support informed decision-making, strategic planning, and performance optimization
Determining optimal breeding chains for tournament-legal Pokemon, representing an important application area for the Pokemon Iv Calc in professional and analytical contexts where accurate pokemon iv calculations directly support informed decision-making, strategic planning, and performance optimization
Evaluating raid-caught Pokemon for Pokemon GO IV comparisons, representing an important application area for the Pokemon Iv Calc in professional and analytical contexts where accurate pokemon iv calculations directly support informed decision-making, strategic planning, and performance optimization
Educational institutions integrate the Pokemon Iv Calc into curriculum materials, student exercises, and examinations, helping learners develop practical competency in pokemon iv analysis while building foundational quantitative reasoning skills applicable across disciplines
In the Pokemon Iv Calc, this scenario requires additional caution when interpreting pokemon iv results. The standard formula may not fully account for all factors present in this edge case, and supplementary analysis or expert consultation may be warranted. Professional best practice involves documenting assumptions, running sensitivity analyses, and cross-referencing results with alternative methods when pokemon iv calculations fall into non-standard territory.
Hidden Power Type Calculation (Gen VI-VII)
{'title': 'Hidden Power Type Calculation (Gen VI-VII)', 'body': "In Generations II through VII, the Hidden Power move's type was determined by a specific formula involving the lowest bit of each IV. Competitive players carefully selected IVs to achieve both 31s in key stats AND a desired Hidden Power type (commonly Fire or Ice for special attackers)."}
When using the Pokemon Iv Calc for comparative pokemon iv analysis across
When using the Pokemon Iv Calc for comparative pokemon iv analysis across scenarios, consistent input measurement methodology is essential. Variations in how pokemon iv inputs are measured, estimated, or rounded introduce systematic biases compounding through the calculation. For meaningful pokemon iv comparisons, establish standardized measurement protocols, document assumptions, and consider whether result differences reflect genuine variations or measurement artifacts. Cross-validation against independent data sources strengthens confidence in comparative findings.
| IV Range | Judge Text | Meaning |
|---|---|---|
| 0 | No Good | The worst possible IV in this stat |
| 1-15 | Decent | Below average IV |
| 16-25 | Pretty Good | Average to above-average IV |
| 26-29 | Very Good | Near-perfect IV |
| 30 | Fantastic | One point below perfect |
| 31 | Best | Perfect IV — maximum possible |
How do I check my Pokemon's IVs in-game?
In modern Pokemon games (Generation VI onward), the Judge function in your PC Box evaluates IVs verbally. After obtaining the National Pokedex or a certain in-game milestone, an NPC or the Judge icon tells you each stat's IV range: No Good (0), Decent (1-15), Pretty Good (16-25), Very Good (26-29), Fantastic (30), or Best (31). For exact IV values before this system, players used online IV calculators combined with specific level check points.
Do IVs matter in casual play?
For casual story playthroughs and Pokedex completion, IVs are nearly irrelevant. The stat differences between 0 and 31 IVs are at most 31 points at level 100, which rarely determines outcomes in story mode. IVs become critically important only in competitive battling (VGC, Smogon) where every stat point can determine which Pokemon moves first or survives a key hit.
What is Hyper Training and does it change IVs?
Hyper Training, introduced in Generation VII, uses Bottle Caps to make a stat behave as though it has 31 IVs for all battle calculations. However, the actual underlying IV value does not change. This means a Hyper Trained Pokemon with 0 Attack IVs still passes 0 Attack IVs to offspring when bred. Gold Bottle Caps can Hyper Train all six stats at once.
Why do some competitive Pokemon want 0 Attack IVs?
Special attackers that never use physical moves benefit from 0 Attack IVs to minimize self-damage from confusion (which deals typeless physical damage) and to take less damage from the move Foul Play (which uses the target's Attack stat). A Chansey with 0 Attack IVs takes noticeably less damage from these sources, which matters in long defensive battles.
How many eggs do I need to breed a perfect Pokemon?
With two parents covering all 6 stats and both using Destiny Knot, the probability of a perfect 6IV offspring is approximately 1/64 per egg. In practice, most competitive breeders aim for 5IV Pokemon (excluding the unused attacking stat) which have roughly a 1 in 32 chance per egg with ideal parents, achievable in 50-100 eggs on average.
Can IVs be inherited from a Ditto parent?
Yes — Ditto is the universal breeding partner in Pokemon. When bred with any compatible Pokemon holding a Destiny Knot, Ditto passes 5 of its 6 IVs to the offspring. This is why dedicated breeding Dittos with perfect or near-perfect IVs in all stats are extremely valuable and often traded online. A 6IV Ditto is the gold standard breeding parent.
Does the Nature affect IVs?
No — Natures and IVs are completely independent systems. Natures modify the final stat by 10% (boosting one stat and lowering another), while IVs add a flat hidden value before multiplications. However, for optimal competitive Pokemon you want both the right Nature AND the right IVs, as they work together in their effect on the final stat.
Pro Tip
When breeding for competitive Pokemon, always start with a 6IV Ditto to maximize offspring IV inheritance. Many players obtain these through GTS trades or online communities before beginning their breeding project.
Did you know?
IVs were called Determinant Values (DVs) in Generation I and II, and they worked on a different 0-15 scale with only 4 relevant stats. The modern 0-31 system was introduced in Generation III (Ruby/Sapphire) alongside the EV overhaul.