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Experience, commonly abbreviated as Exp or XP, is a measure of progress in a certain skill. It is usually obtained by performing tasks related to that skill. After gaining a certain amount of experience, players will advance to the next level in that skill, which can result in new abilities, among other things.

## Gaining ExperienceEdit

Experience in a skill is generally obtained by performing a task related to that skill. Experience can also sometimes be gained by performing certain other tasks not necessarily related to the skill, such as completing quests, participating in random events, playing certain mini-games, or certain mini-quests.

• When a player rubs a lamp from the genie random event, the player gains experience equal to its level times 10 (for example: A player's Woodcutting level is 50; they then rub the lamp, choose Woodcutting, and receive 500 experience in that skill.)
• When a player reads the book reward from the Surprise Exam! random event, it receives its level times 15 experience. (example: If a player's attack level is 70, they would receive 1050 experience from reading the book in that skill.)

Players helping others using the Assist System can also earn a maximum of 30,000 total experience every 24 hours, although the experience may be shared among many skills, and not all skills can be shared through the Assist System.

Players can continue receiving experience after level 99 in a skill, up to a maximum of 200 million. Once a player reaches this limit, they can continue using the skill, but do not receive additional experience. The maximum total experience is 4.8 billion (4,800,000,000) when a player has 200 million experience in all 24 skills. Currently, no player has ever reached this.

Until the Skills Interface update (12 November 2007), players with a level 99 skill could view the experience it would take them to earn level 100. However, even when "level 100" was reached, the actual level remained at 99.

The experience one may obtain varies very much per skill. Players can get up to 925k xp per hour with Summoning, but only get 32k experience with Agility.

#### Exponential GrowthEdit

The amount of experience needed for the next level increases by approximately 10% each level. For example, 83 experience is required for advancement to level 2, while 91 experience is then required for advancement to level 3. The difference between 83 and 91 is 8. 10% of 83 is 8.3, which is approximately 8.

Note that a 10% growth factor may seem slow, but, as with all exponential growth, it expands rapidly to a massive 13,034,431 experience needed for level 99. Level 85 requires nearly one quarter of the experience needed for Level 99 and Level 92 is nearly the exact halfway mark, requiring 6,517,253 experience. This clearly demonstrates the experience gap that grows rapidly at higher levels.

The varying amount of experience needed to get from one level to another can cause some surprising experience rates to get from one level to another. For example, at level 92, you will have half of the experience needed for 99. Getting from level 98 to 99 is equal to getting from level 1 to level 75.

Starting from level 28, the experience of getting to next level is approximately equal to 10% of experience of current level. It is still decreasing though, but much slower than the rate before level 28.

## Combat ExperienceEdit

#### Combat skillsEdit

To calculate the experience gain for combat skills, a simple equation can be used:

Experience earned $= 4 \times d$
where d = damage dealt to an opponent

This equation does not work for some opponents such as random events which give significantly less experience.

#### HitpointsEdit

To calculate the experience gain for Hitpoints, another simple equation can be used:

Experience earned $= 1.33 \times d$
where d = damage dealt to an opponent

#### Monster ExperienceEdit

The number of monsters required to level up a combat skill can be calculated as follows:

Number of monsters $= \frac {E} {4 \times H}$
where E = experience required to level up
and H = monster's number of hitpoints

## Relationship with LevelEdit

### EquationsEdit

The equation below calculates exactly the minimum experience needed for a given level:

Experience Required $= floor \left[ \frac {\displaystyle\sum_{n = 1} ^ {L - 1} floor \left( n + 300 \times 2 ^ {n/7} \right) } {4} \right]$ , where L = skill level

The above equation can be approximated with minimal rounding error as:

Approximate Experience Required $= \sum_{n = 1} ^ {L - 1} \left( \frac {n} {4} + 75 \times 2 ^ {n/7} \right)$ , where L = skill level

This approximation can then be used to find the maximum additional experience required to level up:

Additional Experience Required to Level Up $= \frac {L} {4} + 75 \times 2 ^ {L/7}$ , where L = current level
##### ExampleEdit

You want to find the experience that it would take to level up from 28 Strength to 29 Strength:

Additional Experience Required to Level Up $= \frac { \left( 28 \right) } {4} + 75 \times 2 ^ { \left( 28 \right) /7} = 7 + 75 \times 2 ^ {4} = 7 + 75 \times 16 = 1207$

So it would take at most 1207 experience points to get from level 28 to level 29.

### TableEdit

The following table shows the relationship between level, the experience required for that level, and the experience difference from the previous level:

Level Exp. Exp. Diff Level Exp. Exp. Diff Level Exp. Exp. Diff Level Exp. Exp. Diff
1 0 N/A 26 8,740 898 51 111,945 10,612 76 1,336,443 126,022
2 83 83 27 9,730 990 52 123,660 11,715 77 1,475,581 139,138
3 174 91 28 10,824 1,094 53 136,594 12,934 78 1,629,200 153,619
4 276 102 29 12,031 1,207 54 150,872 14,278 79 1,798,808 169,608
5 388 112 30 13,363 1,332 55 166,636 15,764 80 1,986,068 187,260
6 512 124 31 14,833 1,470 56 184,040 17,404 81 2,192,818 206,750
7 650 138 32 16,456 1,623 57 203,254 19,214 82 2,421,087 228,269
8 801 151 33 18,247 1,791 58 224,466 21,212 83 2,673,114 252,027
9 969 168 34 20,224 1,977 59 247,886 23,420 84 2,951,373 278,259
10 1,154 185 35 22,406 2,182 60 273,742 25,856 85 3,258,594 307,221
11 1,358 204 36 24,815 2,409 61 302,288 28,546 86 3,597,792 339,198
12 1,584 226 37 27,473 2,658 62 333,804 31,516 87 3,972,294 374,502
13 1,833 249 38 30,408 2,935 63 368,599 34,795 88 4,385,776 413,482
14 2,107 274 39 33,648 3,240 64 407,015 38,416 89 4,842,295 456,519
15 2,411 304 40 37,224 3,576 65 449,428 42,413 90 5,346,332 504,037
16 2,746 335 41 41,171 3,947 66 496,254 46,826 91 5,902,831 556,499
17 3,115 369 42 45,529 4,358 67 547,953 51,699 92 6,517,253 614,422
18 3,523 408 43 50,339 4,810 68 605,032 57,079 93 7,195,629 678,376
19 3,973 450 44 55,649 5,310 69 668,051 63,019 94 7,944,614 748,985
20 4,470 497 45 61,512 5,863 70 737,627 69,576 95 8,771,558 826,944
21 5,018 548 46 67,983 6,471 71 814,445 76,818 96 9,684,577 913,019
22 5,624 606 47 75,127 7,144 72 899,257 84,812 97 10,692,629 1,008,052
23 6,291 667 48 83,014 7,887 73 992,895 93,638 98 11,805,606 1,112,977
24 7,028 737 49 91,721 8,707 74 1,096,278 103,383 99 13,034,431 1,228,825
25 7,842 814 50 101,333 9,612 75 1,210,421 114,143

### Calculators Edit

Rather than using a chart or using the equation yourself, calculators such as this allow determining experience more easily.