How a weighted grade works
Each category counts toward your grade by its weight. Multiply each score by its weight, add them up, and divide by the total weight:
Example: homework 90% (worth 20%), quizzes 85% (worth 30%) and a midterm at 78% (worth 50%): 90 × 0.20 + 85 × 0.30 + 78 × 0.50 = 18 + 25.5 + 39 = 82.5%, a B− on the usual scale.
If some categories haven't been graded yet, leave them out. Dividing by the weight graded so far shows where you stand right now. To find the score you need on a final exam, use the final grade calculator.
Common letter grade scale
| Percent | Letter |
|---|---|
| 93–100 | A (97+ is A+) |
| 90–92 | A− |
| 87–89 | B+ |
| 83–86 | B |
| 80–82 | B− |
| 77–79 | C+ |
| 73–76 | C |
| 70–72 | C− |
| 60–69 | D range |
| Below 60 | F |
Schools set their own cut-offs, so check your syllabus.
Frequently asked questions
How do I calculate my grade with weights?
Multiply each category's score by its weight, add the results, and divide by the total weight. With 80% on tests worth 60% and 95% on homework worth 40%, the grade is (48 + 38) ÷ 100 = 86%.
What if my weights don't add up to 100%?
If some work isn't graded yet, the calculator divides by the weight counted so far, which shows your current grade. Weights above 100% usually mean a typo.
What is the difference between a weighted and an unweighted average?
An unweighted average treats every score the same. A weighted one lets important work, like exams, count for more.
Was this calculator helpful?