Semester Grade Calculator — Weighted GPA Average
Enter each course grade (0–100) and its credit hours to get your weighted semester average. Heavier courses count more — just like your university does when computing your GPA.
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Weighted average across all courses by credit hours
- 1
Weighted course points
88 × 3 + 74 × 4 + 91 × 3 + 65 × 2 = 963Each grade multiplied by the credit hours for that course. - 2
Total credit hours
3 + 4 + 3 + 2 = 12 - 3
Weighted average
963 ÷ 12 = 80.3
How does this calculator work?
Semester grade = Σ(course grade × credit hours) ÷ total credit hours. Enter up to 5 courses with their percentage grades and credit hours to get the weighted average the way your university computes it, plus the highest, lowest, and unweighted averages.
Formula
How this is calculated
A simple average treats every course equally, but a 4-credit lab course should count more than a 1-credit elective. The weighted average fixes this: multiply each grade by the number of credits that course carries, add all those products, then divide by the total credits. The result is what your registrar computes when calculating your GPA or semester standing.
This calculator accepts up to 5 courses. Fill in at least one grade and its credit count; the fifth row is optional. All entered courses must have valid grades (0–100) and positive credit hours — rows left blank are ignored. The unweighted average (treating all courses equally) is shown alongside the weighted result so you can see the difference.
Note: this calculator works with percentage grades (0–100). If your institution uses letter grades (A/B/C…) or 4-point GPA points, convert them first using your school's grading scale.
Frequently asked questions
An unweighted average treats every course equally. A weighted average multiplies each grade by its credit hours, so a 4-credit course affects the final average four times as much as a 1-credit course — which is how most universities calculate GPA.
If your grades are on a 0–100 percentage scale, this gives the weighted average directly. To convert to a 4.0 GPA scale you also need your institution's grade-to-GPA conversion table (e.g., 90–100 = 4.0) — scales vary by school.
Enter your existing courses and leave the final exam row with the target credit hours. Then set the final-exam grade to the value that produces your desired overall average. You can also rearrange the formula: needed grade = (target × total credits − current weighted sum) ÷ final credits.
Also known as
TG we-Calculate Editorial Team. (2026). Semester Grade Calculator — Weighted GPA Average [Online calculator]. TG we-Calculate. https://we-calculate.com/calculator/semester-grade-calculator
TG we-Calculate Editorial Team. "Semester Grade Calculator — Weighted GPA Average." TG we-Calculate. 2026. https://we-calculate.com/calculator/semester-grade-calculator.
TG we-Calculate Editorial Team, "Semester Grade Calculator — Weighted GPA Average," TG we-Calculate, 2026. [Online]. Available: https://we-calculate.com/calculator/semester-grade-calculator
@misc{wecalculate_semester_grade_calculator, title = {Semester Grade Calculator — Weighted GPA Average}, author = {{TG we-Calculate Editorial Team}}, howpublished = {\url{https://we-calculate.com/calculator/semester-grade-calculator}}, year = {2026}, note = {TG we-Calculate} }
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