Use this free final exam grade calculator to find out what you need on your final to pass your class, hit a target grade, or protect your GPA. Enter your current grade, the grade you want, and how much your final is worth — we'll do the math instantly.
What Do I Need on My Final?
How It Works
This calculator uses the standard weighted average formula:
For example: current grade 78%, want 80%, final worth 30%:
Letter Grade Reference
| Letter | Percentage | GPA |
|---|---|---|
| A+ | 97–100% | 4.0 |
| A | 93–96% | 4.0 |
| A− | 90–92% | 3.7 |
| B+ | 87–89% | 3.3 |
| B | 83–86% | 3.0 |
| B− | 80–82% | 2.7 |
| C+ | 77–79% | 2.3 |
| C | 73–76% | 2.0 |
| C− | 70–72% | 1.7 |
| D | 60–69% | 1.0 |
| F | Below 60% | 0.0 |
Frequently Asked Questions
How do I find out how much my final exam is worth?
Check your course syllabus — it lists the weight of every graded component including exams, homework, and participation. If you can't find it, ask your professor.
What if I need more than 100% on my final?
That means your current grade is too low to reach your target even with a perfect score. You may need to talk to your professor about extra credit, or adjust your target grade.
What if my final is worth 0%?
If the final has no weight, it doesn't affect your grade. Enter at least 1% to use this calculator.
Does this work for weighted categories (homework, midterms, etc.)?
This calculator focuses on the final exam's impact. For a full breakdown across multiple categories, use the Final Weight field to enter the exact percentage of the course your final is worth.
What grade do I need on my final to pass?
Enter your current grade, set the target to 60% (or your school's passing threshold), and enter the final's weight. The calculator will tell you the minimum score needed.
Can I use this for college and high school?
Yes. The formula works for any course as long as you know your current grade and the final exam's weight.
What do I need on my final to get a B?
Enter your current grade, type 83 as your target (the minimum for a B), and enter your final exam weight. The calculator will tell you the exact score needed. For a B+, use 87, and for a B− use 80.
How much will my final affect my grade?
It depends entirely on the weight your professor assigned. A final worth 50% of your grade has a huge impact — a 20-point swing on the exam can move your course grade by 10 points. A final worth only 10% barely moves the needle. Enter your numbers above to see the exact impact.
Will I pass my class calculator — how does this work?
Set your target grade to 60% (or your school's passing threshold), enter your current grade and final exam weight, then hit Calculate. You'll instantly see the minimum score you need on your final to pass the class.
What grade do I need on my final exam calculator — is this accurate?
Yes. This calculator uses the standard weighted average formula used by professors and grade books worldwide. As long as you enter your correct current grade and the exact weight of your final, the result is mathematically precise.
How much does my final count toward my grade?
Check your syllabus — it will list something like "Final Exam: 30%". That percentage is your final weight. Common values are 20%, 25%, 30%, and 40%. If your professor hasn't specified, ask them directly before finals week.
What if I want to get a B instead of just passing?
Use 83 as your target grade in the calculator. If you're aiming for an A, use 93. The calculator works for any target — just enter the minimum percentage for the letter grade you want.