The Semester Grade Calculator projects a semester grade from term or marking-period scores plus a final exam. Enter the weights from your syllabus or gradebook, and it will show the projected semester percentage, the weighted average for listed work, and the final exam score needed for a target grade.
Results update as you type.
Focuses on the common semester pattern of term scores plus a final exam, shows whether weights account for the full semester, and separates the projected grade from the target final-exam score.
Multiply each term, coursework, and final-exam score by its percentage weight. Add the products and divide by 100.
Semester Grade = Weighted Sum / 100
Use this when every semester component has a score and weight.
Divide the weighted sum by the weight represented by the rows entered so far.
Known Average = Weighted Sum / Listed Weight
Use this when not all semester weight has been listed yet.
Convert the target grade to weighted points out of 100, subtract the points already contributed by non-final work, then divide by the final exam weight.
Required Final = (Target × 100 − Completed Weighted Points) / Final Weight
Defined when a final exam weight is provided and the non-final work plus final exam can account for the course total.
The calculator applies standard weighted-average grade arithmetic. It keeps term or marking-period grades separate from the final exam so students can both project the final semester grade and solve backward for the final exam score needed for a target. If weights do not add to 100%, the result is labeled as a known weighted average rather than a full semester grade.
Term 1 is 86% at 40%, Term 2 is 92% at 40%, and the final exam estimate is 88% at 20%. The weighted points are 34.4, 36.8, and 17.6, for a projected semester grade of 88.8%. To finish with a 90%, the required final is (90 × 100 − 7120) ÷ 20 = 94%.
Use it before finals week, after a quarter or marking-period grade posts, or any time your gradebook separates semester work from a final exam. It is most useful when your school uses a pattern such as 40% term 1, 40% term 2, and 20% final exam.
The same scores can produce different semester grades if the term and final weights change. Copy the exact weights from the syllabus or gradebook before interpreting the result.
When the listed weights add to 100%, the answer is a projected semester grade. When they add to less than 100%, the calculator shows the weighted average of only the rows entered and calls out the unlisted weight.
The required final exam score is the score that would hit the target if the entered non-final work and the final exam account for the whole semester. If other projects or make-up work remain, add them as other coursework.
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