I know this ain't a bug report or a suggestion. I am trying to modify some armor's stats to fit my needs on my personal modpack because I find some armor too OP (Using mods that add material and allow stat modifications.) But no matter how I try, I can't seem to find the exact calculation for an Armor's Durability. I just want to avoid having armors with 100k dura. So what is the formula?

There are different durability multipliers for each armor type. It's 13, 15, 16, and 11 for boots, leggings, chestplates, and helmets respectively.

Taking the Multiplier as a variable, the formula is ((Core Durability + Trim Durability) * Multiplier * Plating Modifier + (Plating Durability * Multiplier)).

I see... I've been looking through the source code forever to find this information... I was missing the multiplier for the armor type. I owe you one! Thanks a bunch! I'll be able to start nerfing some materials!