I have seen video that says we can use an IV calculator such as:


to first find out the possible perfection %, and then keep on "power up" or "evolve", and use the Refine button and you can narrow down the real number for this Pokemon.

For example, it could be 67.8%, 82.2%, 94.8% (just an example), and after some power up and/or evolve, you can narrow down it to 82.2%

But I also have seen a video that says you can go to some website and type in your gmail log in, and it will tell you the perfection % of every single Pokemon that you have. So I presume that will mean you don't have to waste stardust and candies to do the narrow down.

Is it really possible to know the perfection % without using stardust and candies to do the narrow down?

  • 4
    If you actually give someone your gmail credentials, chances are good they won't be nice to it.
    – Frank
    Commented Aug 19, 2016 at 1:03
  • unless if that gmail account was created just for playing Pokemon Go, then there should be less risk Commented Aug 19, 2016 at 1:09
  • Less risk, but chances of actually getting the expected data is virtually nil.
    – Frank
    Commented Aug 19, 2016 at 1:13
  • 1
    I would stay FAR away from that site if I were you.
    – gitsitgo
    Commented Aug 19, 2016 at 14:19
  • 1
    @太極者無極而生 you can use those sites, not sure why those guys are frekaing out. Gmail credentials are verified using an authentication key, not by giving them your user/password. These guys don't know what they're talking about. the only risk here is getting banned by Niantic, but I wouldn't worry too much about getting banned, since these sites don't actually alter data, they just intercept it to see the strength of your pokemon. BUT don't use the tools/sites that evolve pokemon for you. Then you will get banned. Just use the ones that only read data.
    – Mdev
    Commented Aug 19, 2016 at 19:24

2 Answers 2


Logging into a service that calculates your CPs is against the T&Cs of the game, and will probably get your account banned.

Since they released the in-game appraisal system, some calculators are giving pretty accurate results (e.g. https://pokemon.gameinfo.io/en/tools/iv-calculator) when you enter the appraisal stats too.

Unfortunately you can't always guarantee that you'll be able to calculate the exact CPs (it's usually at most a range of a few percent though).


Until recently I was using PokeAdvisor website which gave you the exact IV% of your Pokemon but also tracked some other cool stats such as balls thrown, % of nice throws, etc. Unfortunately this was shut down by Niantic... I think they are being more busy with shutting down third party sites than actually improving their game.

Anyhow back on topic: Nowadays I have been using this website https://pogobag.me/ While it is not as perfect as PokeAdvisor was, it's still much easier to check your IV's than doing it manually :-)

  • so in other words, it is possible to find out the exact IV (the exact perfection %) without using any stardust and candies? Commented Aug 19, 2016 at 16:28
  • Yes indeed, just use the pogobag site I linked above. Commented Aug 20, 2016 at 21:15

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