Final Grade Calculator
Find out what grade you need on your final exam to earn a target course grade.
What is Final Grade Calculator?
The final grade calculator tells you exactly what score you need on your final exam to earn a target grade in the course. It is the single most useful tool for planning the last two weeks of a semester.
Formula
If the final is weighted w (as a decimal) of your course grade, and your pre-final grade is C, and you want a final course grade of T, then you need a final exam score of:
Final needed = (T − C × (1 − w)) ÷ w
If the answer is negative, you have already locked in the target. If above 100, the target is not achievable.
Worked example
Current grade 82%, target 85%, final worth 25%:
- Pre-final contribution = 82 × 0.75 = 61.5
- Needed from final = (85 − 61.5) / 0.25 = 23.5 / 0.25 = 94%
How to use this calculator
- Check your current grade in the class (look in your LMS — Canvas, Blackboard, Moodle, etc.).
- Pick your target letter grade. A = 90+, B = 80+, C = 70+, D = 60+ at most U.S. schools.
- Enter the weight of the final. This is usually on the syllabus — typical values are 20%, 25%, 30%, or 40%.
Frequently asked questions
What if the needed grade is above 100%?
The target is mathematically unreachable even with a perfect final. Lower your target (the calculator can help you find the max possible course grade if you scored 100% on the final: set target to 100 and see what score you currently need — that is your ceiling).
What about extra credit?
Extra credit shifts both your current grade and the final weight. If your instructor offers 2% extra credit worth on the final, treat the final as weight × 1.02 in this calculator or add the expected extra credit to your current grade.
Does this work if the final is cumulative?
Yes. Whether the final tests only recent material or everything since day one, only the WEIGHT matters for the math. The content just affects how hard the exam is.
What if my class uses letter grades with +/− cutoffs?
Enter the minimum percentage for your target letter as the target. For example, A− = 90, B = 83 (at most schools). Syllabus always wins — check your specific grading scale.