XP to Level Calculator

How it is calculated

The tool assumes that moving up from level L to level L+1 costs base × L XP. The total is the sum over every step you still have to take: Total = base × (current + (current+1) + … + (target−1)). Here base is the XP constant of your game, current is the level you are at now, and target is the level you want to reach. The level count shown is simply target − current. The target must be higher than the current level and the base above zero, otherwise there is no result. The loop works on whole levels, so decimals are cut off. Starting at level 0 is allowed, but that first step costs 0 because 0 × base = 0.

Common mistakes

• Assuming the cost to reach level L is base × L. In this tool that amount is the cost to leave level L, so the step from 10 to 11 costs 1,000 XP when base is 100, not 1,100.
• Using it for games with exponential or tabled XP curves. If your game lists XP per level in a table, or multiplies by 1.1 each level, this linear sum will be off.
• Entering the XP already earned inside the current level as a decimal, such as 10.6. Decimals are cut off, so progress inside a level is not counted; subtract it from the result yourself.
• Setting the target equal to the current level, which gives no result because at least one level must be gained.
• Starting at level 0 and expecting a cost for the first step. Level 0 costs 0 XP here, so the total from 0 to 3 is only 3 × base.