The Experience Formula based on the Level is as follows: where is the Level. To find out how much experience you need to advance to the next level, simply subtract the amount of experience of the next level from the current amount of experience that your character has. You can also find a premade experience table here. Another way to find out how much experience you need to advance to the next level, is the following formula (credit to Aopa Gody): is the amount of experience needed to level from level x-1 to level x.