Excel Formulas

Letter Grade Conversion

Here is a formula for converting a percentage to a letter grade using the score breakdown at UWO. Here, the percentage score is in column Z (row 2), and this formula would be pasted into the cell to the immediate right (column AA):

=IF(Z2>=90,"A",IF(Z2>=85,"A-",IF(Z2>=80,"B+",IF(Z2>=75,"B",IF(Z2>=70,"B-",IF(Z2>=65,"C+",IF(Z2>=60,"C",IF(Z2>=55,"C-",IF(Z2>=50,"D","F")))))))))

Here's how the percentages convert to letter grades using the typical UB thresholds

=IF(Z2>=94,"A",IF(Z2>=90,"A-",IF(Z2>=87,"B+",IF(Z2>=83,"B",IF(Z2>=80,"B-",IF(Z2>=77,"C+",IF(Z2>=73,"C",IF(Z2>=70,"C-",IF(Z2>=65,"D+",IF(Z2>=60,"D","F"))))))))))