Pokémon IV Calculator

Frequently Asked Questions

How is a Pokémon stat calculated (Gen III+)?

HP = floor((2×Base + IV + floor(EV÷4)) × Level ÷ 100) + Level + 10. Other stats: floor(((2×Base + IV + floor(EV÷4)) × Level ÷ 100 + 5) × Nature). IVs range 0–31.

How do I find an IV from a known stat?

Rearrange the stat formula with base stat, level, EVs and nature known, then solve for IV. Often a range of IVs maps to the same displayed stat, so check at multiple levels to narrow it.

How much does a nature change a stat?

A beneficial nature multiplies one stat by 1.1 and a hindering nature by 0.9 (HP is never affected). At higher levels this 10% swing can equal several IVs worth of difference.

Why are level 50 and 100 best for IV checking?

Higher levels magnify the per-IV difference, so each IV step changes the visible stat by a larger, easier-to-read amount. Level 100 (or competitive level 50) gives the cleanest IV reads.

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Estimates for informational purposes only.

Important Disclaimer: Estimates for informational purposes only.

This calculator provides estimates for informational purposes only. Results are based on assumptions and may not reflect actual outcomes. Consult qualified professionals in relevant fields before making important decisions based on these results.

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How This Calculator Works

From Generation III onward, every Pokémon stat is a deterministic function of its species base stat, its level, hidden Individual Values (IVs, 0–31), trained Effort Values (EVs, 0–252 per stat), and - for everything except HP - a nature multiplier of 0.9, 1.0, or 1.1. Because IVs are the only hidden term, this tool shows the full range a stat can take: the minimum at IV 0 and the maximum at IV 31, holding base, level, EVs, and nature fixed. Comparing your Pokémon's actual in-game stat against that range tells you roughly where its IV falls, which is the basis of every IV-checking method players use before investing in a competitive build.

Formula / Method

Let I = floor(((2 × base + IV + floor(EV ÷ 4)) × level) ÷ 100). For HP the stat is I + level + 10 (except Shedinja, always 1). For every other stat it is floor((I + 5) × nature), where nature is 1.1 for a boosting nature, 0.9 for a hindering one, and 1.0 if neutral. The tool evaluates this at IV = 0 and IV = 31 to bound the stat, and also reports the neutral-nature maximum so you can see how much a nature shifts the ceiling. EVs contribute only in blocks of four, so 252 EVs add the same as 252 (the cap is enforced at 0–252).

Worked Example

A level-50 Pokémon with base 100, 0 EVs, and a neutral nature: I = floor(((2×100 + IV + 0) × 50) ÷ 100) = floor((200 + IV) × 0.5). At IV 0, I = 100, stat = floor((100 + 5) × 1.0) = 105. At IV 31, I = floor(231 × 0.5) = 115, stat = floor((115 + 5) × 1.0) = 120. So a perfect IV adds 15 points here. If the Pokémon's real stat reads 120 it almost certainly has a 31 IV; if it reads 112 the IV is somewhere mid-range. For HP with the same inputs the range is 100+50+10 = 160 up to 115+50+10 = 175.

Common Mistakes

Applying a nature multiplier to HP - natures never affect HP, so this tool forces 1.0 in HP mode.

Forgetting EVs are counted in blocks of four: 4 EVs give +1 at level 100, and odd EVs round down.

Using the Gen I/II formula (which had no IV/EV split as we know it) for modern games - this calculator is Gen III+.

Reading a stat at low level: ranges are tiny early on, so IV judgement is unreliable below roughly level 30–50.

Ignoring that some abilities, items, or Dynamax temporarily alter displayed stats - check the unmodified value.

Tips & FAQ

How do I pin down the exact IV? Use a high level (50 or 100) where each IV point changes the stat by a full point, zero out EVs so they cannot blur the reading, then match the displayed stat to the range - the closer the in-game number is to the max, the higher the IV, and at level 100 the mapping is usually one-to-one. Do EVs or IVs matter more? A maxed 252-EV investment (worth up to +63 at level 100) outweighs the 31-vs-0 IV gap on most stats, but at the top level of competitive play perfect IVs squeeze out the final few points that decide speed ties, OHKO thresholds, and survival benchmarks where a single point flips an outcome. What is a neutral nature? One that neither boosts nor hinders the stat (multiplier 1.0); a boosting nature multiplies the post-formula value by 1.1 and a hindering one by 0.9, which is why the same IVs can yield three different totals on the same Pokémon. Use the neutral-max readout to separate the nature's contribution from the IV's when judging a catch. Why does a 0-IV stat sometimes get deliberately bred? A minimum Attack IV reduces confusion and Foul-Play self-damage on special attackers, and a minimum Speed IV is wanted for Trick Room teams - so "perfect" sometimes means 31 in five stats and 0 in one. Does this apply to every game? The formula here is the mainline Generation III-onward standard; spin-off titles and Pokémon GO use entirely different stat math, so do not apply this range there.

Frequently Asked Questions

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