Unbreaking

Unbreaking

Maximum level	III
Primary items
Secondary items
Enchantment weight	5
Overleveling behavior	Further decreases durability loss.

{
    "title": "Unbreaking",
    "rows": [
        {
            "field": "III",
            "label": "Maximum level"
        },
        {
            "field": "(values exceeds 1000 characters...)",
            "label": "<span  class=\"explain \" title=\"Items that can receive the enchantment from an enchanting table.\">Primary items</span>"
        },
        {
            "field": "(values exceeds 1000 characters...)",
            "label": "<span  class=\"explain \" title=\"Items that cannot receive the enchantment from an enchanting table but can receive it from an enchanted book on an anvil.\">Secondary items</span>"
        },
        {
            "field": "5",
            "label": "<span  class=\"explain \" title=\"Relative chance of the enchantment being offered.\">Enchantment weight</span>"
        },
        {
            "field": "Further decreases durability loss.",
            "label": "<abbr class=\"\"   title=\"How the enchantment's behavior scales when exceeding the maximum level via commands or other means.\">Overleveling behavior</abbr>"
        }
    ],
    "invimages": [],
    "images": []
}

Unbreaking is an enchantment that gives a chance for an item to avoid durability reduction when it is used, effectively increasing the item's durability.

Graphs showing the probability of a tool breaking after a number of uses with different levels of this enchantment. Some lower durability materials may last longer than higher durability materials with some enchantment levels.

Obtaining

Unbreaking can be obtained from enchanting tables, drops from mobs that have spawned in a raid,‌^{[Bedrock Edition only]} books obtained by fishing, librarian villagers, and non-village structure loot.

Usage

For tools and weapons, there is a $\frac{100\mathrm{\%}}{level+1}$ chance that using the item reduces durability, which means that for levels I, II, and III the item has a $50\mathrm{\%}$, $66.\bar{6}\mathrm{\%}$, or $75\mathrm{\%}$ chance of not using any durability. On average, tools last 2, 3, or 4 times as long.

Effective tool durability increase on average

		No enchanting	Unbreaking
			I	II	III
Average lifetime increase		+ 0 %	+ 100 %	+ 200 %	+ 300 %
Wood		60	120	180	240
Stone		132	264	396	528
Copper		191	382	573	764
Iron Trident‌[BE only]		251	502	753	1004
Gold		33	66	99	132
Diamond		1562	3124	4686	6248
Netherite		2032	4064	6096	8128
Fishing rod ‌[JE only] Flint and steel Brush ‌[JE only]		64	128	192	256
Fishing rod ‌[BE only] Bow		384	768	1152	1536
Crossbow		464	928	1392	1856
Mace		500	1000	1500	2000
Carrot on a stick		25	50	75	100
Warped fungus on a stick		100	200	300	400
Elytra	Durability	432	864	1296	1728
	Flight time	7 min 12 sec	14 min 24 sec	21 min 36 sec	28 min 48 sec
Shears		238	476	714	952
Shield		336	672	1008	1344
Trident‌[JE only]		250	500	750	1000

For armor, there is a $60\mathrm{\%}+\frac{40\mathrm{\%}}{level+1}$ chance a use reduces durability, meaning each durability hit against Unbreaking I, II, and III armor has a $20\mathrm{\%}$, $26.\bar{6}\mathrm{\%}$, or $30\mathrm{\%}$ chance of being ignored. On average, armor lasts about 1.25, 1.36, or 1.43 times as long. Levels below 0 can lower the chance to reduce durability to less than 60 %.

When durability is reduced by multiple points, for example, when hooking a mob with fishing rods or getting blown up with TNT, Unbreaking is applied for each point of decision of actual reduction.

Effective armor durability increase on average

		No enchanting	Unbreaking
			I	II	III
Chance of reducing durability		100 % (1⁄1)	80 % (4⁄5)	73.3 % (11⁄15)	70 % (7⁄10)
Average lifetime increase		+ 0 % (0⁄1)	+ 25 % (1⁄4)	+ 36.4 % (4⁄11)	+ 42.9 % (3⁄7)
Turtle shell		275	344	375	393
Leather	Cap	55	69	75	79
	Tunic	80	100	109	114
	Pants	75	94	102	107
	Boots	65	81	89	93
Golden	Helmet	77	96	105	110
	Chestplate	112	140	153	160
	Leggings	105	131	143	150
	Boots	91	113	124	130
Copper	Helmet	121	151	165	173
	Chestplate	176	220	240	252
	Leggings	165	206	225	236
	Boots	143	178	195	204
Chainmail	Helmet	165	206	225	236
	Chestplate	240	300	327	343
	Leggings	225	281	307	322
	Boots	195	244	266	279
Iron	Helmet	165	206	225	236
	Chestplate	240	300	327	343
	Leggings	225	281	307	322
	Boots	195	244	266	279
Diamond	Helmet	363	454	495	519
	Chestplate	528	660	720	755
	Leggings	495	619	675	707
	Boots	429	536	585	613
Netherite	Helmet	407	509	555	582
	Chestplate	592	740	807	846
	Leggings	555	694	757	793
	Boots	481	601	656	687

Data values

ID

Java Edition:

Name	Identifier	Translation key
Unbreaking	unbreaking	enchantment.minecraft.unbreaking

Bedrock Edition:

Name	Identifier	Numeric ID	Translation key
Unbreaking	unbreaking	17	enchantment.durability

Enchantment definition

Press "show" to display json contents

{
  "anvil_cost": 2,
  "description": {
    "translate": "enchantment.minecraft.unbreaking"
  },
  "effects": {
    "minecraft:item_damage": [
      {
        "effect": {
          "type": "minecraft:remove_binomial",
          "chance": {
            "type": "minecraft:fraction",
            "denominator": {
              "type": "minecraft:linear",
              "base": 10.0,
              "per_level_above_first": 5.0
            },
            "numerator": {
              "type": "minecraft:linear",
              "base": 2.0,
              "per_level_above_first": 2.0
            }
          }
        },
        "requirements": {
          "type": "minecraft:match_tool",
          "predicate": {
            "items": "#minecraft:enchantable/armor"
          }
        }
      },
      {
        "effect": {
          "type": "minecraft:remove_binomial",
          "chance": {
            "type": "minecraft:fraction",
            "denominator": {
              "type": "minecraft:linear",
              "base": 2.0,
              "per_level_above_first": 1.0
            },
            "numerator": {
              "type": "minecraft:linear",
              "base": 1.0,
              "per_level_above_first": 1.0
            }
          }
        },
        "requirements": {
          "type": "minecraft:inverted",
          "term": {
            "type": "minecraft:match_tool",
            "predicate": {
              "items": "#minecraft:enchantable/armor"
            }
          }
        }
      }
    ]
  },
  "max_cost": {
    "base": 55,
    "per_level_above_first": 8
  },
  "max_level": 3,
  "min_cost": {
    "base": 5,
    "per_level_above_first": 8
  },
  "slots": [
    "any"
  ],
  "supported_items": "#minecraft:enchantable/durability",
  "weight": 5
}

History

Java Edition

Java Edition
1.0.0			Beta 1.9 Prerelease 4				Added Unbreaking.
1.4.6			12w50a				Unbreaking can now be added to anything that has durability using enchanted books.
1.7.2			13w36a				Armor can now receive Unbreaking without the use of books from mob drops.
1.11			pre1				Mending and Unbreaking III enchanted books now appear in the combat tab in addition to the tools tab in the Creative inventory.

Bedrock Edition

Pocket Edition Alpha
v0.12.1			build 1				Added Unbreaking.

Legacy Console Edition

Legacy Console Edition
Xbox 360	Xbox One	PS3	PS4	PS Vita	Wii U	Switch
TU7	CU1	1.00	1.00	1.00	Patch 1	1.0.1	Added Unbreaking.

New Nintendo 3DS Edition

New Nintendo 3DS Edition
0.1.0							Added Unbreaking.

Issues

Issues relating to "Unbreaking" are maintained on the bug tracker. Issues should be reported and viewed there.