Mathematical Formula & Method
Final Grade Calculator Formula
Required Score = [Target − Current × (1 − Weight)] / Weight
Worked Examples & Step-by-Step Solutions
Current 82%, want 85%, final worth 30%
- Exam weight w = 0.30; prior weight = 0.70.
- Current contribution: 82 × 0.70 = 57.4%.
- Needed from final: 85 − 57.4 = 27.6%.
- Required exam score: 27.6 / 0.30 = 92.00%.
How to Use the Final Grade Calculator
- Enter current grade, target grade, and the percent weight of your final exam.
Important Assumptions & Unit Conventions
- If required score exceeds 100%, extra credit would be required to achieve target.
Frequently Asked Questions
What if the calculator says I need over 100%?
It means mathematically your current grade is too low to reach that target without extra credit.
Related Calculators
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Weighted Grade Calculator
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