Weighted grades and GPA, explained
Two averages, two different kinds of weights.
Use the right weight
A weighted assessment grade uses percentages assigned to exams, assignments and other course components. GPA uses course credit hours as weights and grade points as values. Mixing percentage marks with grade points produces a number that has no consistent meaning.
Calculate a weighted assessment average
Multiply each percentage score by its assessment weight, add the products, then divide by the total entered weight. For an exam score of 80 with weight 40 and a project score of 90 with weight 60, the result is (80 × 40 + 90 × 60) ÷ 100 = 86.
Calculate a credit-weighted GPA
Multiply each course’s grade points by its credits, add the products, and divide by total credits. Three credits at 4.0 and two credits at 3.0 produce (3 × 4 + 2 × 3) ÷ 5 = 3.60. Use the same grading scale for every row.
Check your institution’s rules
Retakes, pass/fail courses, transferred credits and rounding may be treated differently by each institution. The calculator performs the entered arithmetic; your institution’s published rules determine which rows should be included. A partial assessment average is not a prediction of your final grade.