Equipment level

This article is about the Invention mechanic. For the level of an item's combat properties, see Equipment tier.

This article has a calculator here. Calculators determine experience and costs based on real-time prices from the Grand Exchange Market Watch.

Checking an augmented weapon; experience is displayed, with a pink bar to show progress to the next level.

Equipment level is an attribute of augmented items. Once an item has been augmented, it will gain experience and advance levels when it is used in combat or skilling. Levelling an item increases the experience and materials received when disassembling it. The maximum item level achievable is dependent on research.

Research

Players can complete research to increase the level cap of their augmented items.

Level	Research unlocked
4	Augmented item maximum level 5
27	Augmented item maximum level 10
60	Augmented item maximum level 15
99	Augmented item maximum level 20

Equipment experience

Equipment experience is gained by using augmented items. Much like skills, the item will level up when it reaches specific experience milestones. Equipment experience is received and stored to at least two decimal places, but is truncated to an integer when displayed in the interface and when logging out.

Items can reach level 5 at 4 Invention, level 10 at 27 Invention, level 15 at 60 Invention, and level 20 at 99 Invention. After reaching one of the mentioned milestone level, don't forget you have to research the item level cap. It is possible to gain item experience past the level cap without levelling the item.

Equipment experience is capped at 1,000,000.

Combat equipment

An augmented item receives a proportion of the base combat experience that the player earns when killing a monster. Unlike combat experience, equipment experience is awarded per hit. The total experience $x$ that a monster granting $y$ combat experience (excluding Constitution) gives for depleting its life points from full to 0 is:

$x={\begin{cases}0.09y\approx 9\%&{\text{2-handed weapons}}\\0.045y\approx 4.5\%&{\text{1-handed weapons and shields}}\\0.045y\approx 4.5\%&{\text{Body- and leg-slot items}}\\\end{cases}}$

Thus, for example, killing one abyssal demon gives:

• 425 experience to the skill being used
• 140.2 experience to Constitution
• 19 to any augmented armour, one-handed weapon and shield you are using
• 38 to any augmented two-handed weapon you are using

Equipment experience is awarded each time damage is dealt while wielding/wearing the augmented item(s). The amount received each hit is a proportion of the monster's total available experience relative to the damage of the hit - for example, a hit of 1700 damage to an abyssal demon (which has 8,500 life points) grants 20% of the total experience for the demon (as noted above), as 1,700 is 20% of 8,500.

The enlightened perk increases the equipment experience gained for the item(s) it is added to.

Skilling

Augmented tools receive a portion of the base experience received for gathering resources. Item experience $x$ gained from a resource that gives $y$ experience roughly follows:

$x={\begin{cases}{\frac {\lfloor 288\times y\rfloor }{1000}}\approx 28.8\%&{\text{Archaeology}}\\{\frac {\lfloor 118\times y\rfloor }{1000}}\approx 11.8\%&{\text{Fishing, Mining, Woodcutting}}\\{\frac {\lfloor 65\times y\rfloor }{1000}}\approx 6.5\%&{\text{Firemaking}}\\{\frac {\lfloor 78\times y\rfloor }{1000}}\approx 7.8\%&{\text{Smithing}}\\\end{cases}}$

Based on samples the augmented item experience has at least 3 digits not visible to the player, similar to skill experience which has 1 digit not visible to the player.

For example, each large crystal urchin fished grants 350 Fishing experience and 41.3 item experience.

Effects that increase the 'base experience' (i.e. do not count as 'bonus experience' for the popup) also increase the amount of equipment experience gained per action. Such effects include:

• Doubled resource gain, via the juju woodcutting potion or fury shark outfit
• Resource consumption for additional experience, including the Furnace perk and Crystallise spell
• Percentage base experience increases from special aquarium decorations and similar
• XP Capacitor 5000 grants double the base experience, provided that it is active.

The enlightened perk also increases the experience gained for each resource gathered.

Skilling urns do not add to the equipment level.

Skilling tables

• Calculator:Equipment level/Fishing
• Calculator:Equipment level/Mining
• Calculator:Equipment level/Woodcutting
• Calculator:Equipment level/Firemaking
• Calculator:Equipment level/Smithing

Experience and level effects

Levelling a piece of equipment from level 1 to level 10 increases the amount of Invention experience that is contained within it. This experience greatly increases each time the equipment's level increases. Although items can be levelled up to a maximum of level 20 at 99 Invention, further levels beyond 10 do not increase the Invention experience gained from disassembling. Additionally, Invention experience gained from siphoning also stops increasing after item level 12 is reached. For levels 2-10 and 12-20, item effects are unlocked for augmented equipment. Any previously unlocked item effects are carried over each time an item's level increases, unless stated otherwise. Levelling a tier 80 item would work as follows:

Item level	Item experience	Extra Invention experience (tier 80)					Item level effects
		Disassembly		Siphon
		XP	XP/Item XP	XP	XP/Item XP	GP/XP
1	0	0	N/A	N/A			N/A
2	1,160	9,000	7.76				Disassembling this item has a 50% chance to return installed gizmos.
3	2,607	27,000	10.36				Disassembling this item gives double materials.
4	5,176	54,000	10.43	9,000	1.74	9.13	Disassembling this item never gives junk.
5	8,286	108,000	13.03	27,000	3.26	3.04	This item drains 10% less charge when used.
6	11,760	144,000	12.24	54,000	4.59	1.52	Disassembling this item gives triple materials.
7	15,835	198,000	12.50	108,000	6.82	0.76	Disassembling this item gives an extra random uncommon material.
8	21,152	270,000	12.76	144,000	6.81	0.57	Disassembling this item returns all installed gizmos.
9	28,761	378,000	13.14	198,000	6.88	0.42	Disassembling this item gives quadruple materials.
10	40,120	540,000	13.46	270,000	6.73	0.30	Disassembling this item gives the maximum extra Invention XP.
11	57,095		9.46	378,000	6.62	0.22	N/A
12	81,960		6.59	540,000	6.59	0.15	Siphoning this item gives the maximum extra Invention XP.
13	117,397		4.60		4.60	0.08	Siphoning this item has a 50% chance to not consume the siphon.
14	166,496		3.24		3.24		This item drains 12.5% less charge when used.
15	232,755		2.32		2.32		This item can now be used with an Equipment separator.
16	320,080		1.69		1.69	0.00	Siphoning this item will no longer consume the siphon.
17	432,785		1.25		1.25		Using the Equipment separator on this item has a 25% chance to not consume the separator.
18	575,592		0.94		0.94		This item drains 15% less charge when used.
19	753,631		0.72		0.72		Using the Equipment separator on this item has a 50% chance to not consume the separator.
20	972,440		0.56		0.56		Helpful perks will activate 10% more frequently.

Disassembling an item gives different experience based on its tier, with the base value being for tier 80. Tier 90 items give 15% more experience; tier 70, 15% less.

${\begin{aligned}{\text{XP}}&={\text{Base XP}}\times \left(1+0.015\times ({\text{Tier}}-80)\right)\\\\&={\text{Base XP}}\times {\frac {3\times {\text{Tier}}-40}{200}}\\\end{aligned}}$

While crystal tools are normally tier 70, using a crystal tool siphon grants experience as if they were tier 90 instead - around 35% more experience.

Perk benefits

When a piece of a equipment reaches level 20, certain perks on that equipment gain a multiplicative $10\%$ boosted chance to activate. This is shown by the on the equipment's tooltip or by checking the equipment. For example, if the Biting 4 perk is equipped and has a $8\%$ chance to activate, then at equipment level 20 the activation rate of Biting 4 becomes $8\%\times 1.1=8.8\%$. Known perks that benefit from this boost are as follows:

• Weapon perks:
  • Biting; Impatient; Relentless; Scavenging; Spendthrift; Trophy-taker's
• Armour perks:
  • Absorbative; Biting; Crystal Shield; Devoted; Enhanced Devoted; Impatient; Lucky; Relentless; Scavenging; Trophy-taker's
• Tool perks:
  • Butterfingers; Charitable; Fortune; Furnace; Honed; Imp Souled; Polishing; Prosper; Pyromaniac; Rapid; Refined; Tinker