What is the average overall letter grade?

  • I have a list of letter grades of students. I need to determine the average overall letter grade in the list. What would the formula look like?

    For example: S2:S23 has the grades B-, F, A, C+, and so on. What would the formula in S24 look like to give me what the average letter grade of that list?

  • Hi DrRandyman,

    One way could be to create a reference table where every possible letter grade has a corresponding integer value (i.e. score). You can then use VLOOKUP formula to retrieve the score for each grade in S2:S23 and then average them. Since the average result could be non-integer, you would need to round it. Final step is to take the rounded score and reference the matching letter grade (using INDEX and MATCH formula).

    I have attached an example of how this could be done.

    In the case that every grade has equal weighting as each other (e.g. getting grade B is mildly worse than grade A and getting grade C is also equally mildly worse than grade B), then for a scale containing a total of 14 letter grades, the numerical values would be 1 to 14.

    Hope this sounds clear.

    Best regards,


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    Create as much of a solution as you are able with your current level of understanding. Then, present that information with an example

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