Pokémon IV Calculator (Main Series)
Use this to estimate IV ranges from observed in-game stats. This version is for main-series stat formulas (not Pokémon GO).
What is an IV Pokémon calculator?
An IV Pokémon calculator helps you estimate a Pokémon’s hidden Individual Values (IVs) for HP, Attack, Defense, Special Attack, Special Defense, and Speed. IVs run from 0 to 31 per stat and are a major part of competitive breeding, training, and team building.
Since the game usually does not show exact IV numbers directly, calculators use the visible stats plus known factors (level, base stat, EVs, and nature) to reverse-engineer possible IV values.
How the calculator works
Inputs used
- Base stat: Species value (for example, Garchomp has base 130 Attack).
- Observed stat: The number currently shown on your Pokémon’s summary screen.
- Level: Current level from 1 to 100.
- EVs: Effort Values in that stat (0 to 252 per stat).
- Nature: 1.1× if boosted, 0.9× if lowered, or 1.0× if neutral for non-HP stats.
Main-series formulas used
HP:
HP = floor(((2 × Base + IV + floor(EV/4)) × Level) / 100) + Level + 10
Other stats:
Stat = floor((floor(((2 × Base + IV + floor(EV/4)) × Level) / 100) + 5) × Nature)
The calculator checks all IV values from 0 to 31 and lists the ones that match your observed stat exactly.
How to get more accurate IV results
- Use a higher level. IV ranges narrow down as level increases.
- Know your EVs exactly. Unknown EVs create wider ranges.
- Confirm nature correctly. A wrong nature setting can produce impossible or misleading results.
- Use rare candies and re-check. Multiple level checkpoints can reduce uncertainty fast.
Interpreting the output
You may see a single exact value (for example, 31 exact) or a range (for example, 24–31). Ranges are normal at lower levels or when EVs are uncertain. The summary also gives a total IV range and overall percentage out of 186.
If a stat shows “No valid IV,” one or more inputs are likely wrong (usually EVs, nature, level, or observed stat value).
FAQ
Does this work for Pokémon GO IVs?
No. Pokémon GO uses a different system. This tool targets the main-series games (core RPG stat formulas).
Can I use this for Scarlet & Violet, Sword & Shield, and older gens?
Yes, for standard stat calculation behavior in main-series games. Just make sure your base stats, EVs, and nature are entered correctly.
Why does level 100 give cleaner results?
At level 100, rounding effects are reduced and each IV point contributes more directly to final stats, making reverse calculation easier.