The Gold efficiency of an item tells you how much stats it provides for its price (gold cost). This is a theoretical value with no direct game impact, used mainly to compare items.
A base gold value for each stat has to be defined in order to calculate gold efficiency. This is a form of "theory-crafting" because gold value is not a part of the game's rules; the number has to be derived from the prices of in-game items (see below).
Gold efficiency is then the ratio of the item's theoretical gold value to its actual in-game price.
In general the theoretical gold efficiency is most useful for comparing items' relative, theoretical values. The "real" value of an item during an actual game is influenced by many other factors that are not easily modeled (in terms of gold or otherwise).
Calculating Gold Efficiency[]
The formula for the gold efficiency of an item (as a percentage figure) is simple:
The difficulty is in determining the gold value given the stats on the item. It is done by using the price of "reference items" (see next section).
If the item has passive or active effects they are only taken into account if they provide stats with a gold value (e.g. if an item's effect added a temporary flat movement speed, the gold value of this effect could be determined, because there is a reference value for movement speed). See the next section for how the base gold value of various stats is derived from "reference items".
The item price is simply the price from the in-game shop.
Since gold efficiency is usually given as a percentage value, we have to multiply the ratio by 100.
An item is said to be gold efficient if its gold efficiency is at least 100%. Usually, items that are less than 100% gold efficient have other (passive or active) effects that are not taken into account when determining their gold value. This then results in a theoretical gold deficit in the item's value; in those cases, the items passive or active effects usually make up for the deficit.
Base Statistic Prices[]
The gold values assigned to stats are not measures of the effectiveness of those stats. They are simply base values meant to be used in determining the theoretical value of other items (or effects that are not item-related, such as Dragon buffs or Runes).
A stat's gold value is derived from the least expensive basic item that provides only that stat:
Champion Statistic | Base Item | Item Cost | Stat Raised | Gold / Stat Bonus |
---|---|---|---|---|
Attack damage | 350 | 10 AD | 35 | |
Ability power | 435 | 20 AP | 21.75 | |
Armor | 300 | 15 Armor | 20 | |
Magic resistance | 450 | 25 MR | 18 | |
Health | 400 | 150 HP | 2.67 | |
Mana | 350 | 250 MP | 1.4 | |
Health regeneration | 150 | 50% HP5 | 3 | |
Mana regeneration | 250 | 50% MP5 | 5 | |
Critical strike chance | 600 | 15% Crit | 40 | |
Attack speed | 300 | 12% AS | 25 | |
Flat movement speed | 300 | 25 MS | 12 |
Life steal, lethality, magic penetration, on-hit damage, cooldown reduction, percent movement speed, and heal and shield power are not found isolated on any single item, so their gold values are calculated using the least expensive items that provide the stat: , , , , , and for each of the aforementioned stats respectively. Spell vamp (on an item) is currently only found on the non-static passive Lifegrip on , making its gold value incalculable.
Champion Statistic | Base Item | Item Cost | Stat Raised | Gold / Stat Bonus |
---|---|---|---|---|
Life steal | 900 | 10% LS 15 AD |
37.5 35 | |
Lethality | 1100 | 10 Lethality 30 AD |
5 35 | |
Magic penetration | 1100 | {{{mpen}}} MC Pen 45 MS |
表达式错误:未预料的<操作符。 12 | |
On-hit damage | 1000 | 15 OH Dmg 25% AS |
25 25 | |
Cooldown reduction | 800 | % CDR 200 HP |
表达式错误:未预料的<操作符。 2.67 | |
Percent movement speed | 850 | % MS 30 AP |
表达式错误:未预料的<操作符。 21.75 | |
Heal and shield power | 800 | 10% HS Power 50% Base MP5 {{{cdrunique}}}% CDR |
表达式错误:未预料的<操作符。 5 表达式错误:未预料的<操作符。 |
Item Statistics[]
Basic Tier Items[]
Base Item | Item Cost | AD Value | Gold / AD | Equivalence |
---|---|---|---|---|
350 | 10 | 35 | N/A | |
875 | 25 | 35 | 100% Efficiency | |
1300 | 40 | 32.5 | 107.69% Efficiency |
All items base efficiency[]
The following table displays all the item base gold efficiencies (without considering passives and actives). Full item gold efficiencies (with passives) can be found on the respective items' pages.
2700 74.57%2800 88.93%1500 76%850 76.76%435 100%3000 70.46%3000 <span style="border-bottom:1px dotted gray;cursor:help;" title="表达式错误:未预料的<操作符。">表达式错误:未预料的<操作符。%2300 103.12%1300 107.69%1100 72.73%2600 98.08%1100 79.55% Remove from Template:Do for every item.3300 66.67%400 350%3200 77.34%850 102.35% Remove from Template:Do for every item.3400 102.21%1000 30% Remove from Template:Do for every item.900 80%1000 70%400 350.42% Remove from Template:Do for every item.1100 79.55%800 100%800 98.75% Remove from Template:Do for every item.2500 90%600 100%300 100%75 0%500 0%650 105.13%450 54.44%300 100%350 123.69%2900 71.18%3100 82.26%450 109.63%400 196.56%450 47.41%3200 65.63%2900 90.23%500 0%500 0%500 0%2900 93.97%800 65.63%250 100%900 84.58%800 102.08%2750 145.45%400 221.98%2700 148.64%2500 78.4%3100 94.09%3300 69.09%900 103.7% Remove from Template:Do for every item.2800 78.57%950 173.68%950 42.11%950 133.68%2800 68.75%400 190% Remove from Template:Do for every item.50 0%1150 0%2150 0%1300 102.31%2800 101.67% Remove from Template:Do for every item.2500 94.87% Remove from Template:Do for every item. Remove from Template:Do for every item. Remove from Template:Do for every item.2700 93.83%2700 <span style="border-bottom:1px dotted gray;cursor:help;" title="表达式错误:未预料的<操作符。">表达式错误:未预料的<操作符。%3400 95.59%900 60%1200 88.19%800 66.67%700 53.57%2300 85.51%1450 103.45% Remove from Template:Do for every item.3000 63.92%2500 66.93%350 100%2900 118.1%1300 99.23%3200 95.76%3200 127.08%2900 66.38%2900 66.38%3100 85.48%1600 43.85%2900 82.41%1100 90%2100 70.79%3400 136.76%2500 87.57%2500 96.06%3000 114.17%1250 104.4%900 100%1100 36.36%450 100%800 81.56%3300 <span style="border-bottom:1px dotted gray;cursor:help;" title="表达式错误:未预料的<操作符。">表达式错误:未预料的<操作符。%300 0%400 372.92%3000 0%1100 96.21%2600 84.67%875 100% Remove from Template:Do for every item.1300 41.54%2700 83.95%2500 78.06%3300 68.94%1000 62.5%2300 94.2%150 0%150 100%400 65.94%2650 100.13% Remove from Template:Do for every item. Remove from Template:Do for every item.400 100%2600 84.67%400 156.67% Remove from Template:Do for every item.3000 96.36%2300 <span style="border-bottom:1px dotted gray;cursor:help;" title="表达式错误:未预料的<操作符。">表达式错误:未预料的<操作符。%350 100%3000 64.17%100 735%1100 95.45%400 392.5%700 0%2050 91.06% Remove from Template:Do for every item.1100 49.09%400 81.67%1250 89.33%2900 103.62%400 112.67%2900 76.55% Remove from Template:Do for every item.2600 87.56%400 65%3100 90.86%1100 79.55%650 0%2700 95.37%2750 84.85%400 158.54%400 84%400 84%2700 79.01%1200 72.92%3300 72.22%3333 68.51%2400 86.07%2600 67.31%900 100%2650 57.45%1000 80%3000 91.11% Remove from Template:Do for every item.3100 95.16%3000 70%3000 <span style="border-bottom:1px dotted gray;cursor:help;" title="表达式错误:未预料的<操作符。">表达式错误:未预料的<操作符。%1050 100%2400 63.19%2600 88.99%
Item | Cost | Base Efficiency |
---|---|---|
3000 stats | 87% | |
2800 stats | 88.93% | |
1100 stats | 103.64% | |
850 stats | 100% | |
435 stats | 100% | |
3200 stats | 70.76% | |
3200 stats | 70.76% | |
2300 stats | 117.58% | |
2100 stats | 93.29% | |
1300 stats | 107.69% | |
900 stats | 59.26% | |
3000 stats | 99.26% | |
1100 stats | 79.55% | |
1600 stats | 78.13% | |
3000 stats | 100% | |
400 stats | 410.42% | |
3300 stats | 75% | |
850 stats | 102.35% | |
1625 stats | 76.92% | |
3500 stats | 80% | |
1000 stats | 0% | |
300 stats | 0% | |
900 stats | 0% | |
1000 stats | 70% | |
400 stats | 410.94% | |
1100 stats | 92.73% | |
1100 stats | 103.79% | |
800 stats | 100% | |
800 stats | 98.75% | |
1500 stats | 53.33% | |
2200 stats | 102.27% | |
800 stats | 100% | |
300 stats | 100% | |
75 stats | 0% | |
500 stats | 0% | |
650 stats | 105.13% | |
450 stats | 54.44% | |
300 stats | 100% | |
350 stats | 102.14% | |
2900 stats | 80.46% | |
3600 stats | 87.69% | |
450 stats | 134.63% | |
400 stats | 196.56% | |
450 stats | 95.41% | |
2900 stats | 81.61% | |
2900 stats | 96.26% | |
500 stats | 0% | |
500 stats | 0% | |
500 stats | 0% | |
3300 stats | 120.71% | |
800 stats | 65.63% | |
125 stats | 100% | |
900 stats | 114.21% | |
800 stats | 100% | |
2750 stats | 145.45% | |
400 stats | 221.98% | |
2700 stats | 148.64% | |
2700 stats | 121.98% | |
3100 stats | 94.09% | |
2500 stats | 60.8% | |
1000 stats | 101.33% | |
900 stats | 112.96% | |
2800 stats | 84.82% | |
950 stats | 155.26% | |
950 stats | 117.89% | |
950 stats | 185.39% | |
3100 stats | 65.93% | |
400 stats | 190% | |
1500 stats | 86.31% | |
50 stats | 0% | |
1150 stats | 0% | |
2150 stats | 0% | |
1300 stats | 102.31% | |
2800 stats | 101.67% | |
3400 stats | 92.35% | |
2500 stats | 94.87% | |
1050 stats | 82.86% | |
350 stats | 0% | |
350 stats | 0% | |
2700 stats | 93.83% | |
3000 stats | 149.56% | |
3400 stats | 111.76% | |
900 stats | 29.63% | |
1200 stats | 88.19% | |
800 stats | 100% | |
700 stats | 53.57% | |
2200 stats | 78.79% | |
1450 stats | 48.28% | |
3100 stats | 78.43% | |
3200 stats | 82.29% | |
2200 stats | 76.36% | |
350 stats | 100% | |
2800 stats | 56.25% | |
1300 stats | 99.23% | |
3200 stats | 95.76% | |
3200 stats | 127.08% | |
2400 stats | 65.63% | |
2400 stats | 65.63% | |
3250 stats | 89.74% | |
1400 stats | 51.07% | |
3400 stats | 81.03% | |
1100 stats | 40.91% | |
3300 stats | 102.27% | |
2100 stats | 124.76% | |
3400 stats | 142.65% | |
3000 stats | 77.42% | |
2800 stats | 56.25% | |
3000 stats | 117.44% | |
1250 stats | 104.4% | |
720 stats | 100% | |
1100 stats | 36.36% | |
450 stats | 100% | |
1600 stats | 60.52% | |
3000 stats | 136.67% | |
300 stats | 0% | |
400 stats | 406.25% | |
3000 stats | 0% | |
1250 stats | 84.67% | |
2600 stats | 77.94% | |
875 stats | 100% | |
1300 stats | 41.54% | |
3600 stats | 72.5% | |
3600 stats | 105.73% | |
2900 stats | 85.06% | |
2600 stats | 77.94% | |
3500 stats | 107.86% | |
1000 stats | 62.5% | |
2100 stats | 107.94% | |
150 stats | 0% | |
150 stats | 100% | |
400 stats | 65.94% | |
2650 stats | 100.13% | |
2600 stats | 97.12% | |
2600 stats | 97.12% | |
400 stats | 100% | |
2600 stats | 90.6% | |
400 stats | 156.67% | |
1500 stats | 161.78% | |
2600 stats | 106.06% | |
2100 stats | 146.83% | |
350 stats | 100% | |
3000 stats | 82.92% | |
1100 stats | 94.09% | |
1100 stats | 95.45% | |
400 stats | 463.54% | |
1050 stats | 58.73% | |
2050 stats | 118.7% | |
1000 stats | 0% | |
1100 stats | 50.91% | |
400 stats | 81.67% | |
1200 stats | 93.06% | |
2900 stats | 103.62% | |
400 stats | 112.67% | |
2800 stats | 98.45% | |
1000 stats | 0% | |
2600 stats | 87.56% | |
400 stats | 65% | |
3200 stats | 37.5% | |
1100 stats | 103.79% | |
650 stats | 0% | |
3200 stats | 97.66% | |
2750 stats | 84.85% | |
400 stats | 158.54% | |
850 stats | 41.18% | |
850 stats | 41.18% | |
2900 stats | 78.16% | |
1325 stats | 77.36% | |
3500 stats | 82.86% | |
3733 stats | 97.04% | |
3733 stats | 127.18% | |
2400 stats | 86.07% | |
2400 stats | 84.03% | |
900 stats | 100% | |
2650 stats | 57.45% | |
1000 stats | 80% | |
2850 stats | 105.26% | |
1625 stats | 145.64% | |
2900 stats | 80.95% | |
2900 stats | 75.57% | |
2900 stats | 99.71% | |
1400 stats | 112.61% | |
2250 stats | 104.74% | |
2900 stats | 96.48% | |
2900 stats | 125.57% |
Trivia[]
- Spell vamp used be a statistic available on items. It was valued at 27.5 per percentage point before it was removed from . It is still available through passive.
- The former values for MP5 and HP5 were 60 and 36 respectively. Flat MP5 is available on , and flat HP5 is still available on items like and .
- The snowball item begins with a very low gold efficiency, but upon reaching maximum stacks has one of the best possible in the game.
- Health regeneration.
- A also has no gold efficiency cap with or .
has no gold efficiency cap with or because they infinitely increase their health, which will scale