Current 78%, final worth 20%, want 80%
Need 88% on the final
- Current grade
- 78%
- Final weight
- 20%
- Target grade
- 80%
- Required final score
- 88%
- Best possible outcome
- 82.4%
- Minimum guaranteed
- 62.4%
With a 78% current grade and a final worth 20% of the course, you need exactly 88% on that exam to land at exactly 80%. The formula is (target − current × 0.80) ÷ 0.20 = (80 − 62.4) ÷ 0.20 = 88. Even if you score 100, the best you can finish is 82.4%; if you score zero, your minimum guaranteed grade is 62.4%.
Final Grade Calculator
Find the exact score you need on your final exam to hit your target grade — plus your best- and worst-case outcomes.
- Best possible grade
- 89.5%
- Lowest guaranteed grade
- 59.5%
Calculator
Where the final takes you
How it's calculated
The required final score is derived from the weighted-average course grade formula: course grade = current × (1 − w) + final × w, where w = finalWeight / 100. Rearranging to isolate the final exam score gives: required = (target − current × (1 − w)) / w. The best-case course grade assumes a perfect 100 on the final; the worst-case assumes 0. Both are computed from the same formula with the final score substituted in. Sources: RogerHub Final Grade Calculator (https://rogerhub.com/final-grade-calculator/) and Calculator.net Grade Calculator (https://www.calculator.net/grade-calculator.html).
Sources
Reviewed by the YouCalc Team · Last reviewed
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