How to Calculate Final Exam Grade Needed
What is Final Exam Grade Needed?
This calculator tells you the minimum score needed on a final exam to achieve your target grade in a course, given your current grade and the final's weight in the overall mark.
Formula
Final exam score needed = (Target grade − Current weighted grade) / Final exam weight
- F
- Final Exam Score Needed (%)
- T
- Target Grade (%)
- w
- Final Exam Weight (%)
Step-by-Step Guide
- 1Required final = (Target − Current × (1 − weight)) ÷ weight
- 2If current grade = 78%, final weight = 30%, target = 80%:
- 3Required = (80 − 78×0.70) ÷ 0.30 = (80 − 54.6) ÷ 0.30 = 84.7%
Worked Examples
Input
Current: 75%, final worth 40%, target: 80%
Result
Need 87.5% on the final
Input
Current: 85%, final worth 20%, target: 80%
Result
Already achieved! Only need 55% on the final.
Frequently Asked Questions
What if I can't possibly reach my target grade?
The calculator will show a required score above 100%, which is impossible. This helps you understand the situation early and adjust your target or strategy.
How is the current grade calculated?
Current grade = sum of (assignment score × weight) for all completed work. Different courses weight assignments, tests, and participation differently.
Should I focus on the final exam or other work?
If the final exam weight is low (10–20%), focus on improving assignments. If it's high (40%+), the final exam becomes critical.
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