Final Grade Calculator
Enter your current grade, target grade, and final exam weight to see what score you need on the final.
Calculate your required final score
All calculations happen locally in your browser.
How to use this calculator
- 1. Current grade — Enter your overall course grade right now. Find it in Canvas, Blackboard, or your school portal.
- 2. Desired course grade — Enter the final grade you want for the course (e.g. 90 for an A–).
- 3. Final exam weight — Enter the percentage the final is worth. Check your syllabus under "Grading breakdown."
- 4. Calculate — The result is the minimum score you need on the final to hit your target.
Formula
Required final score = (desired grade − current grade × current weight) ÷ final weight
Where current weight = 1 − final weight. For example, if the final is worth 25%, your current grade counts for 75%.
What do I need on my final?
If you are asking what grade you need on your final exam, enter your current class grade, the course grade you want, and the final exam weight from your syllabus. The calculator works backward from your target and returns the minimum final exam score needed to reach it.
For a full walkthrough of the math, see what grade do I need on my final.
Examples
Example 1 — Boosting a B to a B+
Current grade: 82% · Target: 85% · Final worth: 30%
Required score: (85 − 82 × 0.70) ÷ 0.30 = 92%
Example 2 — Recovering from a rough semester
Current grade: 74% · Target: 80% · Final worth: 40%
Required score: (80 − 74 × 0.60) ÷ 0.40 = 89%
Example 3 — Protecting a strong grade
Current grade: 92% · Target: 90% · Final worth: 20%
Required score: (90 − 92 × 0.80) ÷ 0.20 = 82% — you can get a B and still finish with an A–.
Common mistakes
- Using a grade that excludes unreturned work. If some assignments haven't been graded yet, your portal may show a higher grade than your real average. Check that all major assignments are reflected before entering your current grade.
- Confusing exam weight with exam score. The weight is the percentage the final contributes to your course grade — not the score you expect to earn. A final worth 30% means 30 out of 100 percentage points of your grade come from that exam.
- Assuming a result above 100% is a calculator error. It is not. A result above 100% means your target grade is mathematically unreachable with a standard exam. Consider extra credit options or adjusting your target.
- Not checking the syllabus for the exact weight. Estimating the final weight instead of using the number from your syllabus produces an inaccurate result. The actual weight is almost always listed under "Grading breakdown."
FAQ
What does final exam weight mean?
The final exam weight is the percentage of your overall course grade that comes from the final exam. A 25% weight means the final counts for one-quarter of your grade.
My required score is above 100% — what does that mean?
Your target grade is not reachable with a normal 100-point final. You would need extra credit, or you may need to adjust your target grade downward.
Why might Canvas or Blackboard show a different number?
Canvas, Blackboard, and Moodle may drop the lowest score, round differently, or apply category weighting rules that are not visible in your current grade. Small differences are normal — treat this calculator as an estimate.
What is my current weight if the final is worth 25%?
Your current grade weight is 75% — the remaining portion of the course before the final. The calculator uses this automatically when you enter the final exam weight.
Where do I find the final exam weight?
Check your course syllabus under the grading breakdown. It is usually listed as 'Final exam: X% of grade'. If you can't find it, email your professor.
Can I use this for midterms or other exams, not just finals?
Yes. The formula works for any graded component — a midterm, a project, or a presentation. Just enter the weight that component carries in your course grade. The calculator is not limited to final exams.
What if my final exam has multiple parts with different weights?
Add the weights of all parts together and treat it as one final weight. For example, if a written exam is worth 15% and a practical portion is worth 10%, enter 25% as the final weight and aim for a combined score that meets your target.
Related tools
This calculator is for planning only. Your official grade is determined by your instructor, school, or learning management system.