Glycemic load takes into account the amount of carbohydrate in foods and how quickly it raises blood level.
Glycemic index doesn’t take into account the amount of carbohydrate therefore, glycemic load is a better measure.
Formula to calculate glycemic load.

Glycemic index ranks the glycemic potency of foods.
Example:
Suppose the amount of carbohydrates in a particular type of food is 500grams, calculate the glycemic load if the glycemic index is 50.

Therefore, your glycemic load is 50.