The minimum values are all calculated using a linear function y = kx+m where y is the calculated minimum value, x is the current enchantment power level and k and m varies between different enchantments. The maximum values are all the minimum values plus a constant that varies for each enchantment.
Please note
These are not the levels you need to pay to be able to receive specific enchantments, you must also take into account the modification of levels that occur in step one.
| Armor Enchantment | Modified Enchantment level | ||||
|---|---|---|---|---|---|
| I | II | III | IV | V | |
| Protection | 11 – 20 | — | — | — | — |
| Fire Protection | 8 – 12 | 4 – 0 | 0 – 0 | 0 – 0 | 0 – 0 |
| Feather Fall | 6 – 10 | 4 – 0 | 0 – 0 | 0 – 0 | 0 – 0 |
| Blast Protection | 8 – 12 | 4 – 0 | 0 – 0 | 0 – 0 | 0 – 0 |
| Projectile Protection | 6 – 15 | 4 – 0 | 0 – 0 | — | — |
| Respiration | 10 – 30 | 3 – 0 | 0 – 0 | 0 – 0 | 0 – 0 |
| Aqua Affinity | 0 – 40 | — | — | — | — |
| Thorns | 20 – 50 | 3 – 0 | 0 – 0 | 0 – 0 | 0 – 0 |
| Sword Enchantment | Modified Enchantment level | ||||
| I | II | III | IV | V | |
| Sharpness | 11 – 20 | — | — | — | — |
| Smite | 8 – 20 | 5 – 0 | 0 – 0 | 0 – 0 | 0 – 0 |
| Bane of Arthropods | 8 – 20 | 5 – 0 | 0 – 0 | 0 – 0 | 0 – 0 |
| Knockback | 20 – 50 | 2 – 0 | 0 – 0 | 0 – 0 | 0 – 0 |
| Fire Aspect | 20 – 50 | 2 – 0 | 0 – 0 | 0 – 0 | 0 – 0 |
| Looting | 9 – 50 | 3 – 0 | 0 – 0 | 0 – 0 | 0 – 0 |
| Bow Enchantment | Modified Enchantment level | ||||
| I | II | III | IV | V | |
| Power | 10 – 15 | — | — | — | — |
| Punch | 20 – 25 | 2 – 0 | 0 – 0 | 0 – 0 | 0 – 0 |
| Flame | 0 – 30 | 1 – 0 | 0 – 0 | 0 – 0 | 0 – 0 |
| Infinity | 0 – 30 | 1 – 0 | 0 – 0 | 0 – 0 | 0 – 0 |
| Tool Enchantment | Modified Enchantment level | ||||
| I | II | III | IV | V | |
| Efficiency | 10 – 50 | — | — | — | — |
| Silk Touch | 0 – 50 | 1 – 0 | 0 – 0 | 0 – 0 | 0 – 0 |
| Unbreaking | 8 – 50 | 3 – 0 | 0 – 0 | 0 – 0 | 0 – 0 |
| Fortune | 9 – 50 | 3 – 0 | 0 – 0 | 0 – 0 | 0 – 0 |
Source:[1]
Note: that extremely high modified enchantment levels can fall outside the ranges of all valid enchantments for the item. If this happens, the item is left un-enchanted, but you are not charged any experience levels and can try enchanting it again.
- ↑ Minecraft 1.4.6 source code