Final Grade Calculator
Find out exactly what score you need on your final exam to achieve your target grade in the class.
Final Grade Calculator
Find out what you need on your final exam
You need on your final
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The Formula
Required Final = (Desired Grade - Current Grade × Current Weight) / Final Weight
Step-by-Step Example
Let's say you have an 82% in a class where you've completed 75% of the coursework. The final exam is worth 25% of your grade. You want to get a B (83%).
- 1Current contribution: 82% × 0.75 = 61.5 points
- 2Points still needed for 83%: 83 - 61.5 = 21.5 points
- 3Required final score: 21.5 / 0.25 = 86%
You need an 86% on your final to get a B in the class.
Common Scenarios
You're in Good Shape
If you need less than your current grade on the final, you can actually afford to score lower than usual and still maintain or improve your grade. But don't slack off!
Achievable Stretch Goal
If you need 85-95% on the final, it's challenging but doable with solid preparation. Create a study plan and use active recall techniques.
Near Impossible
If you need 95-100%, it's very difficult. Consider whether the target is worth the stress, or adjust your expectations. Focus on getting the best possible score.
Mathematically Impossible
If you need over 100%, that grade isn't achievable without extra credit. Talk to your professor about options, or focus on the highest achievable grade.
Quick Reference: Final Worth 20%
| Current Grade | Want A (93%) | Want B (83%) | Want C (73%) |
|---|---|---|---|
| 95% | 85% | 35% | -15% ✓ |
| 90% | 105% ✗ | 55% | 5% ✓ |
| 85% | 125% ✗ | 75% | 25% |
| 80% | 145% ✗ | 95% | 45% |
| 75% | 165% ✗ | 115% ✗ | 65% |
| 70% | 185% ✗ | 135% ✗ | 85% |
✓ = Passing guaranteed | Yellow = Challenging | ✗ = Impossible without extra credit
Final Exam Study Tips
Start Early
Begin studying at least 1-2 weeks before the exam. Cramming doesn't work for long-term retention.
Use Active Recall
Test yourself with flashcards and practice problems instead of just re-reading notes.
Review Past Exams
Previous midterms and quizzes show what your professor emphasizes. Expect similar question styles.
Focus on Weak Areas
Identify topics you struggled with during the semester and prioritize reviewing those.
Frequently Asked Questions
How do I calculate what I need on my final?
Use this formula: Required Final = (Desired Grade - Current Grade × Current Weight) / Final Weight. For example, if you have 85% with 80% of work done and want 90%, you need: (90 - 85×0.8) / 0.2 = 110% - which means a 90% is impossible without extra credit.
What if I need more than 100% on my final?
If the calculator shows you need over 100%, mathematically you cannot achieve your target grade with the final alone. Consider: 1) Adjusting your goal to a realistic target, 2) Asking about extra credit opportunities, 3) Focusing on the best achievable grade instead.
Can I pass the class if I fail the final?
It depends on your current grade and the final's weight. If your final is worth 20% and you currently have a 90%, even getting 0% would leave you at 72% (90×0.8 = 72). However, many courses have minimum final exam requirements, so check your syllabus carefully.
How accurate is this calculator?
This calculator uses standard weighted grade calculations. Make sure you input the correct current grade, current weight completed, and final exam weight from your syllabus. The accuracy depends on the accuracy of these inputs.
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