Experience rate

Experience rates, or exp rates refer to the hourly rate at which experience can be obtained through training a specific skill. They are directly related to the amount of exp that is gained via preforming certain actions that to the relevant skill, with some skills having favorable exp rates and others having very unfavorable ones. The speed at which experience can be gained in any skill is a large determinant in classifying how "easy" or "hard" the skill is to train, and thus directly determines how many players chose to invest time in training the skill.

Some of the quicker and easier skills to train (such as Cooking, Fletching, and Thieving) can get experience rates at an upwards of 200k per hour, while some of the hardest and slowest skills to train such as (Slayer, Runecrafting and Agility) get maximum experience rates between 20-60k per hour, making them seldom trained in comparison to the quicker and easier skills.