Minecraft wiki entry for Armor, associated text: Broken down, this means that each armor point gives 4% maximum damage reduction against an incoming attack. Without toughness, this max damage reduction is lessened by 2 percentage points for each hit point of the incoming attack. 2 defense points are worth 8% protection, so the total protection that can be achieved with armor is 80%. Diamond and netherite armors protect the player from up to 80% of damage, iron provides up to 60% damage reduction and leather provides up to 28%.