How to Calculate a Weighted Course Grade
A weighted grade calculator helps you find your current grade when different assignment types count for different percentages of your final grade.
The Weighted Grade Formula
Course Grade = Σ (Category Average × Category Weight)
Example: Homework 85% (30%) + Quizzes 78% (20%) + Exams 90% (50%) = 25.5 + 15.6 + 45 = 86.1%
Step-by-Step Instructions
- Add categories — one per assignment type in your syllabus.
- Set weights — must total 100%.
- Add assignments — enter each score.
- Calculate — click "Calculate My Grade".
Letter Grade Reference
| Percentage | Letter Grade | GPA Points |
|---|---|---|
| 93–100% | A | 4.0 |
| 90–92% | A- | 3.7 |
| 87–89% | B+ | 3.3 |
| 83–86% | B | 3.0 |
| 80–82% | B- | 2.7 |
| 77–79% | C+ | 2.3 |
| 73–76% | C | 2.0 |
| 70–72% | C- | 1.7 |
| 60–69% | D | 1.0 |
| 0–59% | F | 0.0 |
Related Tools
- GPA Calculator — Convert course grades to GPA
- Final Exam Calculator — What score do you need on the final?
- GPA Scale Chart — Full grade conversion table
How do I calculate a weighted grade?
Multiply each category average by its weight decimal, then add. Example: 85% × 0.40 + 90% × 0.60 = 34 + 54 = 88%.
What if my weights don't add up to 100%?
The calculator warns you and normalizes. For best accuracy, make sure weights total exactly 100% to match your syllabus.
How is a course grade different from GPA?
A course grade is your percentage score in one class. GPA is the weighted average across all courses on a 0–4.0 scale. Use the GPA Calculator to convert.