How do I ACCURATELY check the DVs of a Pokemon in the Virtual Console Pokemon Yellow?

So I played Pokémon Yellow on the VIrtual Console all the way through with the intention of transferring all the Pokemon to Ultra Sun. For breeding and battle reasons, I need them to all be Males with Hardy natures among other things. I played through the whole game and transferred all the Pokemon. I seem to have gotten the Hardy natures on all of them, but some of them were female. The one thing I screwed up in was apparently how I checked the genders. I thought I made sure that the Attack DVs were over 7. Males need to have 8-15, right? I would check each Pokémon right away, before I battled with them. How do I ACCURATELY check the DVs of the Pokemon so that I don’t found out when it’s too late all over again?

Pleaselog inorregisterto add a comment.

http://www.psypokes.com/gsc/dv.php

I tested this out on my own copy of virtual console G/S/C and it worked, try seeing if it works for you. Another useful resource is Pokemon showdown, because you can create whatever Pokemon you need, and then adjust its DVs until the simulated Pokemon matches your in-game one. Just wondering, you do know that when they are transferred into usum, their DVs are irrelevant and instead replaced with 3 random max IVs? Anyways, I hoped the information provided helps you on your (strange) quest to find a good DV… actually you didn’t specify but good luck anyways.