The formula for damage reduction is
(4 × level)%, meaning for every additional level another 4% of damage is absorbed. The highest level (Protection IV) absorbs 16% (
4 × 4%) of damage. Theoretically at level 25 no damage is possible (because it would transcend 100%), but because the damage to be absorbed is capped at 80%, the maximum effective level would be 20.
Protection, Blast Protection, Fire Protection, and Projectile Protection are mutually exclusive. However, if commands are used to have two or more of these enchantments on the same item, the effects stack.
|1.14||?||Protection enchantments are no longer mutually exclusive.|
|1.14.3||pre2||Protection enchantments are again mutually exclusive.|
|Pocket Edition Alpha|
|0.12.1||build 1||Added Protection.|