What XP formula does RuneScape use?

RuneScape sums a per-level term across all levels below your target. For each level L the increment is the floor of L plus 300 times 2 to the power of L divided by 7, all divided by 4. The cumulative XP for a level is one quarter of the running total of those increments.

How much XP is level 99?

Reaching level 99 in a normal RuneScape skill requires 13,034,431 experience. This calculator reproduces that exact figure from the formula, so any target between 1 and 99 returns the same numbers the game uses.

Why does each level cost so much more than the last?

The formula contains a term that doubles roughly every seven levels, so XP requirements grow exponentially. The jump from 98 to 99 alone is over 1.3 million experience, more than levels 1 through 70 combined.

Can I calculate elite skill levels above 99?

This tool covers the standard 1 to 99 curve that applies to most skills. Elite skills such as Invention use a different, steeper table beyond 99, so figures above level 99 are not represented here.

What does percent through level mean?

It shows how far your current XP has progressed between the start of your current level and the start of the next one, as a percentage. At 50 percent you are halfway, in XP terms, to the next level up.

RuneScape 3 XP & Level Calculator

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The RuneScape XP curve is exponential, so eyeballing how close you are to the next level is hopeless past the mid levels. This calculator reproduces the exact cumulative XP table from the official formula and tells you precisely how much experience remains to your next level and to any target.

How it works

RuneScape computes the XP required to reach level L by summing a per-level increment over every level below it:

points(L) = floor( L + 300 × 2^(L / 7) )
xpForLevel(target) = floor( (1/4) × Σ points(L) for L = 1 .. target-1 )

The 2^(L/7) term doubles every seven levels, which is what makes high levels so expensive. The XP needed for your next level is simply xpForLevel(currentLevel + 1) minus your current XP.

Example and tips

A normal skill needs 1,986,068 XP for level 80 and 2,951,373 for level 84, so moving from 80 to 84 costs roughly 965,000 experience. Because the curve is so steep near the top, the final push from 92 to 99 is about half of all the XP you will ever earn in that skill — plan your most efficient training method for that stretch rather than the early levels.