Required Final Exam Grade is designed for the exact search intent behind “final grade calculator”. Find the score you need on a final exam to reach a target overall course grade using your current grade and the final's percentage weight. Find the score you need on a final exam to reach a target overall course grade using your current grade and the final's percentage weight. Required final exam formula If w is the final-exam weight as a decimal: required final score = [target grade − current grade × (1−w)] ÷ w . Interpret impossible targets A required score above 100% means the target is not reachable under ordinary grading without extra credit, a curve or another syllabus rule. A required score below 0% means the target is already secured mathematically under the stated assumptions. Check the syllabus Use the actual pre-final course grade and final weight. Category weighting, dropped scores and extra credit can change the calculation. Worked example: With an 86% current grade and a final worth 30%, the required score is (90 − 86×0.70) ÷ 0.30 ≈ 99.33%. Common practical uses include Plan final-exam targets; Check whether a course-grade goal is reachable; Compare study scenarios; Verify weighted-grade math. Important limitations: The formula assumes the current grade represents all non-final work. Extra credit, curves and dropped assignments are not included unless explicitly modeled. A mathematically required score does not predict what score a student will actually earn. Key questions this page should answer include: How do I calculate what I need on my final? Use your current grade, target grade and final weight in the weighted-average formula solved for the final score. What if the calculator says I need more than 100%? The target is not reachable under the stated ordinary weighting unless another rule such as extra credit or a curve changes the course grade. What if the final is worth 20%? Use 0.20 as the final weight in the formula. Should I use my current grade before the final? Yes. Use the grade representing the non-final portion of the course under the syllabus. Does this work with weighted categories? It works if your current grade already correctly summarizes the non-final weighted work and the final weight is entered accurately. The page should stay focused on this differentiator: Directly answer the high-intent 'what do I need on my final?' query with formula and reachability logic.
How to use this tool
Required final exam formula
If w is the final-exam weight as a decimal: required final score = [target grade − current grade × (1−w)] ÷ w.
Interpret impossible targets
A required score above 100% means the target is not reachable under ordinary grading without extra credit, a curve or another syllabus rule. A required score below 0% means the target is already secured mathematically under the stated assumptions.
Check the syllabus
Use the actual pre-final course grade and final weight. Category weighting, dropped scores and extra credit can change the calculation.
Examples
Target 90 with a 30% final
With an 86% current grade and a final worth 30%, the required score is (90 − 86×0.70) ÷ 0.30 ≈ 99.33%.
Common use cases
- Plan final-exam targets
- Check whether a course-grade goal is reachable
- Compare study scenarios
- Verify weighted-grade math
Frequently asked questions
How do I calculate what I need on my final?
Use your current grade, target grade and final weight in the weighted-average formula solved for the final score.
What if the calculator says I need more than 100%?
The target is not reachable under the stated ordinary weighting unless another rule such as extra credit or a curve changes the course grade.
What if the final is worth 20%?
Use 0.20 as the final weight in the formula.
Should I use my current grade before the final?
Yes. Use the grade representing the non-final portion of the course under the syllabus.
Does this work with weighted categories?
It works if your current grade already correctly summarizes the non-final weighted work and the final weight is entered accurately.