The Final Grade Formula Explained
Your final course grade is a weighted combination of your existing grade and your final exam score.
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Final Grade Calculator
Find out exactly what score you need on your final exam to reach your target course grade.
Quick Answer
Formula: Required Final = (Target − Current × (1 − Final Weight)) ÷ Final Weight. Example — current grade 74%, final worth 30%, target 80%: (80 − 74 × 0.70) ÷ 0.30 = (80 − 51.8) ÷ 0.30 = 94% needed on the final.
Enter your current grade, final exam weight, and target grade
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Required = (Target − Current × (1 − Final Weight)) ÷ Final Weight
Realistic Scenarios
| Current Grade | Final Weight | Target C (70%) | Target B (83%) | Target A (93%) |
|---|---|---|---|---|
| 90% | 30% | Already there | Already there | 96% |
| 80% | 30% | Already there | 89% | >100% ✗ |
| 75% | 30% | Already there | 99% | >100% ✗ |
| 70% | 40% | Already there | 91% | >100% ✗ |
| 65% | 40% | 76% | >100% ✗ | >100% ✗ |
What to Do If You Need Over 100%
- Ask about extra credit. Many professors offer it before finals — but ask early.
- Lower your target. Passing with a C (2.0) is often enough to meet degree requirements.
- Consider a grade replacement. Some schools let you retake and replace the grade.
- Talk to your professor now. The earlier you reach out, the more options you have.