Last updated October 13, 2026 · Report an error
Before a final exam, the question that actually matters isn't "how did I do so far" — it's "what do I need to score on the final to get the grade I want." This calculator answers that directly from three numbers: your current grade going into the final, your target overall grade, and how much the final counts toward your final grade.
It also shows the best and worst possible overall grades you could end up with, so you can see immediately whether your target is realistic, already secured, or completely out of reach before you even sit the exam.
How it works
Enter your current grade percentage (before the final), your desired overall grade percentage, and the final exam's weight as a percentage of your total grade. The tool solves for the score you'd need on the final to hit your target, using the standard weighted-average formula, and flags whether that score is realistically achievable.
- Enter your current grade percentage.
- Enter your desired overall grade percentage.
- Enter the final exam's weight as a percentage of your total grade.
- Review the score you need on the final.
Examples
A target that requires an unrealistic score
With an 80% current grade, a final worth 20% of your grade, and an 85% target, you'd need a 105% on the final — flagged as not achievable, since no exam allows scoring above 100%.
A grade that's already secured
With a 95% current grade, a final worth 20%, and only a 70% target, even scoring a zero on the final would still land you at 76% overall — the target is already secured regardless of the final exam result.
Who should use it
- Figuring out what score you need before a final exam to hit a target grade.
- Checking whether a desired grade is still realistically achievable.
- Deciding how much study effort a final exam actually requires to reach your goal.
Industry applications
- Secondary and higher education
- Academic advising and tutoring
- Online and self-paced coursework
Advantages
- Shows the required score, plus best- and worst-case overall grades, in one calculation.
- Instantly flags when a target grade is unachievable or already secured.
- No signup required.
Limitations
- Doesn't account for extra credit, grade curves, or dropped-lowest-score policies.
- Assumes a simple weighted-average grading model, which not all courses use exactly.
- Requires knowing your exact current grade and the final's weight in advance.
Common mistakes to avoid
- Confusing the final exam's weight with its point value — weight is its percentage share of your total grade, not the number of points it's worth.
- Assuming a required score above 100% means "close enough" rather than mathematically impossible.
- Forgetting to double check the current grade percentage is accurate before calculating, since even a small error changes the required score noticeably.
Best practices
- Double-check your current grade and the final's exact weight from your syllabus or gradebook before calculating.
- If the required score isn't achievable, talk to your instructor early about extra credit or grading policy rather than waiting until after the final.
- Recalculate if your current grade changes after any remaining non-final assignments are graded.
Tips
- If your required score isn't achievable, recalculate with a slightly lower target grade to find a realistic goal.
- Recheck your current grade right before the final, since a recently graded assignment can shift the number you need.