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Semester Grade Calculator

A semester grade is the weighted average of your assignment category averages. Enter each category, its average score, and its weight to find your final semester grade percentage.

Categories

Category Avg (%) Weight (%)
Weights do not sum to 100. Review your syllabus before using this result.

Results

Semester grade -
Letter grade -
Total weight entered -

Results computed in your browser.

How semester grades work

Your semester grade combines every assignment category using the weights your professor sets on the syllabus. Homework, quizzes, labs, midterms, and finals each count for a fixed portion of the total.

Worked example. Homework average 88 at 20%, quiz average 76 at 25%, lab average 90 at 15%, midterm 82 at 20%, final 79 at 20%. Weighted sum: (88 x 0.20) + (76 x 0.25) + (90 x 0.15) + (82 x 0.20) + (79 x 0.20) = 17.6 + 19 + 13.5 + 16.4 + 15.8 = 82.3. Final semester grade: 82.3, a solid B.

This calculator is most useful mid-semester when some categories are complete and others are still in progress. Enter completed categories with real grades and skip categories you have not started. The weight total shows how much of your grade is still open.

If your professor drops the lowest quiz or homework score, recalculate your category average first using only the scores that count, then enter that adjusted average here.

More free student tools

Other calculators on GPACalcTools.

Related tools: the weighted grade calculator handles individual assignment rows rather than category averages, the final grade calculator tells you what score you need on the final to hit a target, and the GPA calculator converts course grades into a semester GPA.

Good to know

FAQs

How do you calculate a semester grade?

A semester grade is the weighted average of your assignment category averages. Multiply each category average by its weight percentage, sum those products, then divide by the total weight. If weights sum to 100, the result is your semester grade percentage.

What is the difference between a semester grade and a semester GPA?

A semester grade is a raw percentage for a single class. A semester GPA is the 4.0-scale average across all classes you took that semester, with each course weighted by its credit hours.

What if I have not finished a category yet?

Leave the average blank for any category not yet complete. The calculator uses only filled rows. The weight total shows how much of your grade is still undecided, which helps you plan what you need from remaining assignments.

Can I include a final exam in this calculator?

Yes. Add a row for the final exam with its weight. If you have not taken it yet, leave the grade blank, or enter your target score to see what the semester grade would be if you hit that number.

How do I convert a semester grade percentage to a letter grade?

Standard cutoffs: 90 and above is A, 80 to 89 is B, 70 to 79 is C, 60 to 69 is D, below 60 is F. Some schools use plus and minus grades within each band. Check your school's grading scale for any variations from this standard.