Pokemon IV Calculator

In Pokémon GO, each Pokémon has three IVs — Attack, Defense, and Stamina — and each ranges from 0 to 15. In the main series games (Gen 3–9), there are six IVs — HP, Attack, Defense, Sp. Atk, Sp. Def, and Speed — and each ranges from 0 to 31. This calculator handles both systems in separate tabs.

Different IV and level combinations can produce the same CP and HP. The calculator shows every combination that matches your inputs. To narrow the results, add your Stardust cost, appraisal details, and power-up data. The more info you give, the fewer combinations remain.

Enter as much detail as possible. Select the correct Stardust cost, check Just Caught if the Pokémon hasn't been powered up, fill in the star rating, pick the best stat(s) and stat value range, and add power-up data if you can. Each piece of information removes wrong matches until ideally only one is left.

A Pokémon you just caught is always at a whole number level (like 20, not 20.5). Checking this box removes all half-level possibilities, which cuts the results roughly in half and gives you a more accurate answer.

When you power up a Pokémon, its CP and HP change based on its IVs. By entering the new CP, HP, and Stardust cost after a power-up, the calculator checks which IV combinations still match at the new level. Wrong combinations get removed, leaving you with fewer and more accurate results.

In capped leagues like Great League (1500 CP) and Ultra League (2500 CP), a Pokémon with lower Attack IV can reach a higher level before hitting the CP cap. Higher level means more total stats. So the best PVP IVs are often something like 0/15/15 (low Attack, high Defense and Stamina) rather than 15/15/15.

The IV percentage shows how close your Pokémon's IVs are to the maximum. In Pokémon GO, a perfect Pokémon (15/15/15) is 100%. In main series games, a perfect Pokémon (31 in all six stats) is also 100%. Higher percentages mean stronger stats overall.

Perfect means 100% IVs. Great means 80% to 99%. Good means below 80%. These labels help you quickly see how strong each possible IV combination is without reading every number.

Open your Pokémon's page, tap the menu button (three lines), and select Appraise. Your team leader will show a star rating (0 to 3 stars or Wonder) and highlight the best stat(s) with bar graphs. Enter these details into the calculator for better results.

This usually means one of your inputs is wrong. Double-check your CP, HP, Stardust cost, star rating, best stats, and stat value range. Even one wrong number can eliminate all valid combinations. Also make sure you picked the correct Pokémon species.

EVs (Effort Values) are bonus stat points your Pokémon earns from battling or using vitamins. Each stat can have up to 252 EVs. The calculator needs accurate EV numbers because EVs and IVs both affect your final stats. If you enter wrong EVs, you will get wrong IV results.

A nature boosts one stat by 10% and lowers another by 10%. Some natures like Hardy are neutral and change nothing. Picking the wrong nature will give you incorrect IV results because the stat formula uses the nature multiplier. Check your Pokémon's summary screen to find its nature.

The main series tab uses the Gen 3–9 stat formula, which works for games like Sword, Shield, Scarlet, Violet, and older games back to Ruby and Sapphire. Legends Arceus and Let's Go use different stat systems, so results may not be accurate for those games.

The calculator includes a curated set of popular and competitive Pokémon for both Pokémon GO and main series modes. It covers fan favorites like Dragonite, Mewtwo, Garchomp, Tyranitar, Metagross, and many more. If your Pokémon is not listed, the tool cannot calculate its IVs.

The maximum IV for each stat in Pokémon GO is 15. A Pokémon with 15 Attack, 15 Defense, and 15 Stamina has perfect IVs. However, for PVP leagues with CP caps, a lower Attack IV is often better because it lets your Pokémon reach a higher level and gain more total stats.

Not exactly. Each Stardust cost covers four possible levels (two whole and two half levels). For example, 2500 Stardust means level 19, 19.5, 20, or 20.5. Combining Stardust cost with the Just Caught checkbox and other inputs helps the calculator pin down the exact level.

Yes. When your cursor is in any input field, press Enter on your keyboard and the calculator will run automatically. This works in both the Pokémon GO tab and the Main Series tab.

In Pokémon GO mode, the chart shows how many IV combinations fall into Perfect, Great, and Good categories. In Main Series mode, the chart displays the best guess IV for each of the six stats so you can quickly see which stats are strongest.

Click the Reset button next to the Calculate button. This clears all your inputs and returns everything to the default values. Any power-up rows you added will also be removed.

At certain levels and EV values, multiple IVs produce the same final stat. For example, an IV of 30 and 31 might both give the same number. To narrow it down, try checking your Pokémon at a higher level or use the in-game IV checker (Judge function) to confirm.