Gen 5 IV Calculator (Single Stat)
Use this tool for Pokémon Black, White, Black 2, and White 2. Enter one observed stat and get all possible IV values (0-31).
How this Gen 5 IV calculator works
In Generation 5, every Pokémon stat is determined by base stats, level, EVs, IVs, and nature (for non-HP stats). Since IVs are hidden in-game, this calculator reverses the stat formula and checks every possible IV from 0 to 31. Any IV that reproduces your exact observed stat is shown as a valid result.
What you need before calculating
- Correct base stat for the species and form.
- Exact level of your Pokémon at the time of checking.
- Observed stat from the summary screen.
- Known EV amount in that stat (or at least a strong estimate).
- Nature interaction for that stat (boosted, lowered, or neutral).
Common mistakes that cause wrong IV results
- Using total EVs instead of EVs in the specific stat.
- Forgetting that 1-3 leftover EVs do not change the stat.
- Applying nature to HP (nature never changes HP).
- Reading stats after level-up without updating level input.
Gen 5 stat formulas used by the tool
HP Formula
HP = floor(((2 × Base + IV + floor(EV/4)) × Level) / 100) + Level + 10
Other Stats Formula
Stat = floor((floor(((2 × Base + IV + floor(EV/4)) × Level) / 100) + 5) × Nature)
Where Nature is 1.1 (beneficial), 1.0 (neutral), or 0.9 (hindering).
How to get tighter IV ranges
At low levels, several IV values can produce the same visible stat. If your result shows multiple IVs, that is normal. To narrow it down:
- Re-check the same stat at a higher level.
- Use Rare Candies temporarily and record each stat change.
- Track EV training carefully so your EV input is exact.
- Run this process on multiple stats, then combine all results.
Practical breeding and team-building tips (Gen 5)
For competitive players
- Aim for 31 IV in Speed for sweepers that rely on outspeeding threats.
- Prioritize offensive IVs (Atk/SpA) based on move set and role.
- Consider imperfect Attack IV for special attackers to reduce confusion/Foul Play damage in some formats.
For in-game playthroughs
- Perfect IVs are not mandatory for story progression.
- High EV consistency usually matters more than tiny IV differences.
- Use this calculator mainly when optimizing favorites or Battle Subway teams.
Quick FAQ
Why does the calculator show several possible IVs?
Because the game rounds values during stat calculation. At many levels, different IVs collapse into the same displayed stat.
Can this be used for Black/White and Black 2/White 2?
Yes. The formulas in this calculator match Generation 5 mechanics.
Does this calculator include hidden power type prediction?
No. This version focuses on accurate single-stat IV range calculation. Hidden Power type requires combining IV parity from all six stats.
Final note
If you want highly reliable IV checks, gather precise inputs and test at higher levels. Even a simple single-stat calculator becomes very accurate when your EVs and nature are known. Save this page and use it as a fast Gen 5 reference whenever you catch, breed, or optimize a new Pokémon.