Minecraft:Item repair

Template:FakeImage Template:FakeImage Item repair is a feature that allows Minecraft:players to repair damaged items with Minecraft:durability (Minecraft:tools, Minecraft:armor, and Minecraft:weapons) by combining them in the Minecraft:crafting grid or a Minecraft:grindstone.

Usage

Two items of the same type and material can be placed anywhere on the crafting grid or Minecraft:grindstone, which results in a single repaired item. The durability of the repaired item equals the sum of the old items' durability plus a 'repair bonus' of 5% of the item's maximum uses, up to a limit of the maximum durability for that item. Repairing gives a slight benefit in conserving inventory space, as it combines two non-stackable objects into one.<ref>Template:Tweet</ref>

The repaired object is never enchanted even if both items were to have the exact same enchantments, with the exception of curse enchantments, which are transferred to the repaired item. Therefore, using a "junk" item in a repair may sometimes be useful for removing an unwanted enchantment from an item prior to enchanting it again. Tools made of different materials (for example, a wood and a stone pickaxe) cannot be combined.

All items with durability can be repaired this way.

Formula for uses restored

The formula for determining how many uses a repaired item can have restored to it in the crafting box, is as follows:

min(Item A uses + Item B uses + floor(Max uses / 20), Max uses)

where "floor" means round down to the smaller integer, and "min(x,y)" means the smallest of x or y.

Example: Two stone axes have 10 and 45 uses. A newly crafted stone axe would have 61 uses.

10 + 45 + Template:Frac = 55 + 6.55 = 61

Or, in terms of percentage (approximated):

7.6% + 34% + 5% = 46.6%

The greatest benefit is gained when the two items have a combined durability of at most approximately 95%, in any combination, such as 47.5% + 47.5%, 94% + 1%, 10% + 10% or any other values that total 95% or less. The order in which items are combined does not matter; one sequence of repairs gives exactly the same durability as any other.

In the example, repairing a stone tool restores a bonus of 6 durability, which is actually only Template:Frac = 4.5%. The precise combined durability for efficient repairs is shown in the following table.

Item	Actual bonus (%)	Actual bonus (uses)	Combined durability (%)	Combined durability (uses)
Golden tools	3%	1	97.0%	31
Wooden tools	5%	3	95.0%	56
Stone tools	4.5%	6	95.5%	125
Iron tools	4.8%	12	95.2%	238
Diamond tools	5%	78	95.0%	1483
Netherite tools	5%	101	95.0%	1930
Minecraft:Carrot on a stick	3.8%	1	96.2%	24
Minecraft:Flint and steel Minecraft:Brush	4.6%	3	95.4%	61
Minecraft:Fishing rod	4.6%	3	95.4%	61
Minecraft:Warped fungus on a stick	5%	5	95%	95
Minecraft:Shears	4.6%	11	95.4%	227
Minecraft:Trident	4.8%	12	95.2%	238
Minecraft:Shield	4.8%	16	95.2%	320
Minecraft:Bow	4.9%	19	95.1%	365
Minecraft:Elytra	4.9%	21	95.1%	411
Minecraft:Crossbow	4.9%	23	95.1%	442
Minecraft:Mace	5%	25	95%	475

A perfect repair is theoretically possible, but unlikely in practice. Combining items whose combined durability is more than 100% actually wastes more resources than simply using tools until they break.

The precise combined durability for efficient repairs for all types of armor is shown in the following table.

Armor piece	Actual bonus (%)	Actual bonus (uses)	Combined durability (%)	Combined durability (uses)
Minecraft:Leather helmet	3.6%	2	96.4%	53
Minecraft:Leather boots	4.6%	3	95.4%	59
Minecraft:Leather leggings	4.0%	3	96.0%	72
Minecraft:Leather chestplate	4.9%	4	95.1%	77
Minecraft:Golden helmet	3.9%	3	96.1%	74
Minecraft:Golden boots	4.4%	4	95.6%	87
Minecraft:Golden leggings	4.8%	5	95.2%	100
Minecraft:Golden chestplate	4.4%	5	95.6%	108
Minecraft:Iron helmet	4.8%	8	95.2%	157
Minecraft:Iron boots	4.6%	9	95.4%	186
Minecraft:Iron leggings	4.9%	11	95.1%	214
Minecraft:Iron chestplate	5.0%	12	95.0%	229
Minecraft:Diamond helmet	5.0%	18	95.0%	327
Minecraft:Diamond boots	4.9%	21	95.1%	408
Minecraft:Diamond leggings	4.8%	24	95.2%	471
Minecraft:Diamond chestplate	4.9%	26	95.1%	502
Minecraft:Netherite helmet	4.9%	20	95.1%	387
Minecraft:Netherite boots	5.0%	24	95.0%	457
Minecraft:Netherite leggings	4.9%	27	95.1%	528
Minecraft:Netherite chestplate	4.9%	29	95.1%	563

Anvil repair

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An Minecraft:anvil can also repair items in two different ways. This costs experience levels, but unlike the grindstone, the anvil preserves or can even enhance the target's enchantments. The anvil can combine the enchantments on two similar items, or rename any item (not just the ones it can repair). The costs are complex, so a summary is given here.

The repair cost is stored in a Template:Code value.

Combination

Two items of the same type are put into the input slots; the first one is the item to be repaired and the second one is to be merged into the first. The second item's durability is added to the first, and if applicable, some or all enchantments from the second item are added. If two of the same enchantments have the same level and there is a level above that the enchantments will combine increasing the level of the enchantment by one.

Unit repair

Some items can be repaired by "covering" the damage with a specific material. The item to be repaired is put into the first input slot, and the corresponding material is put into the second slot. Each material item (unit) heals the item's durability by 25% its maximum durability, rounded down.

Mechanics/Anvil/Repairable items