Average Calculator

The four primary statistical values often referred to as averages are the mean (the sum of all values divided by the count), the median (the middle number in a sorted list), the mode (the most frequently occurring value), and the range or midrange. While people usually mean the arithmetic mean when they say 'average,' each metric serves a distinct analytical purpose.

Averages can be misleading when a dataset contains extreme outliers or skewed distributions. For example, a single extremely high income in a small group can artificially inflate the average income, making the group appear wealthier than what is typical for the majority of individuals. In such cases, the median is often a more reliable indicator.

Averaging pre-calculated averages is generally mathematically inaccurate unless every subgroup contains the exact same sample size. If the sample sizes differ, combining them requires calculating a weighted average where each subgroup mean is multiplied by its respective sample size before summing and dividing by the grand total.

To find your course grade average, add the numerical scores or grade percentages of all your completed classes together and divide that sum by the total number of classes. If your courses carry different credit weights, multiply each grade by its credit value, sum those products, and divide by the total number of credits earned.