Pokemon Team Weakness Calculator, a Arty2, webmaster of Legendary Pokémon.
Made this infographic for checking IV after the latest update. The calculation is self explanatory, but I thought I'd make the chart for quick reference. : r/TheSilphRoad
GitHub - pokemon-speedrunning/late-gen-iv-calculator: IV Calculator for Gen 3+ games
Pokémon Go IV Calculator - PokéGo
A guide for online IV calculation - General Pokémon Forum - Neoseeker Forums
Serebii.net Games - Characteristics
Simple Questions, Simple Answers thread (FAQ in first post, read before posting) | Page 18 | Smogon Forums
Pokemon GO: Best IV Calculator apps for web and mobile phones revealed
Pokémon Sword and Shield' IV checker: Where to find it and how it works, pokemon sword and shield differences - thirstymag.com
GitHub - josemam/IV-PID: A fast, open-source IV⇆PID calculator for 3rd and 4th gen Pokémon
Pokémon IV calculator - Pokémon GO - GameInfo
How to check ivs in Pokemon ruby (gen 3)? - PokéBase Pokémon Answers