The Quick Formula
Current Grade = (Total Points Earned ÷ Total Points Possible) × 100
Example: You earned 432 out of 500 points → 432 ÷ 500 × 100 = 86.4% (B)
Calculate Your Grade
Enter your assignments, weights, and see what you need on the final:
Calculating Your Current Grade
Simple (Unweighted) Method
When all assignments are worth the same or graded by points:
| Assignment | Points Earned | Points Possible |
|---|---|---|
| Homework 1 | 45 | 50 |
| Homework 2 | 38 | 50 |
| Quiz 1 | 18 | 20 |
| Midterm | 82 | 100 |
| Lab Report | 27 | 30 |
| Total | 210 | 250 |
Grade = 210 ÷ 250 × 100 = 84% (B)
Weighted Method
Most courses use categories with different weights:
| Category | Weight | Your Average |
|---|---|---|
| Homework | 20% | 92% |
| Quizzes | 15% | 85% |
| Midterm | 25% | 78% |
| Final Exam | 30% | ? |
| Participation | 10% | 95% |
Weighted grade = Σ (category average × weight)
Without the final:
- Homework: 92 × 0.20 = 18.4
- Quizzes: 85 × 0.15 = 12.75
- Midterm: 78 × 0.25 = 19.5
- Participation: 95 × 0.10 = 9.5
Current grade (70% of course) = 60.15 out of 70 = 85.9%
"What Do I Need on the Final?"
This is the question every student asks. Here's the formula:
Required Final Grade = (Target Grade − Current Weighted Points) ÷ Final Weight
If you are using this as a final exam grade calculator, the three numbers you need are your current grade, the weight of the final exam, and the course grade you want.
Using the example above, to get a B (80%) in the course:
- Target: 80 points total
- Already earned: 60.15 points
- Final weight: 30% (0.30)
- Required: (80 − 60.15) ÷ 0.30 = 66.2%
You need a 66.2% on the final to get a B. Doable.
To get an A (90%):
- (90 − 60.15) ÷ 0.30 = 99.5% — very difficult.
Final Exam Grade Calculator Examples
| Current Grade | Final Weight | Target Course Grade | What You Need on the Final |
|---|---|---|---|
| 88% | 20% | 90% | 98% |
| 84% | 25% | 87% | 96% |
| 78% | 30% | 80% | 84.7% |
| 92% | 40% | 90% | 87% |
When the score needed is over 100%, the target is mathematically out of reach unless your class allows extra credit or the grading policy drops a low score. When the score needed is very low, you may already be close to securing that target grade.
Quick Reference: Final Exam Scores Needed
Given a current grade of 85% (before a 30% final):
| Target Grade | Score Needed on Final |
|---|---|
| A (93%) | 103.8% (impossible) |
| A- (90%) | 96.7% |
| B+ (87%) | 89.5% |
| B (83%) | 78.1% |
| B- (80%) | 71.0% |
| C+ (77%) | 61.0% |
| C (73%) | 46.7% |
Standard Grading Scale
| Letter | Percentage | GPA |
|---|---|---|
| A | 93-100% | 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 |
Note: Grading scales vary by school. Some use +/− grades, others don't. Always check your syllabus.
How Dropping the Lowest Score Works
Some professors drop the lowest score in a category. This changes the calculation:
Example: 5 quizzes, lowest dropped
| Quiz | Score |
|---|---|
| Quiz 1 | 75% |
| Quiz 2 | 92% |
| Quiz 3 | 88% |
| Quiz 4 | 65% ← dropped |
| Quiz 5 | 90% |
- With all 5: (75 + 92 + 88 + 65 + 90) ÷ 5 = 82%
- With lowest dropped: (75 + 92 + 88 + 90) ÷ 4 = 86.25%
A 4-point boost just from the drop policy.
Extra Credit
Extra credit adds points to your numerator without increasing the denominator:
- Regular score: 180/200 = 90%
- With 10 points extra credit: 190/200 = 95%
Some professors cap your grade at 100% even with extra credit — check the syllabus.
Strategies When Your Grade Is Borderline
You're at 89.4% and need 90% for an A-
- Check the syllabus for rounding policy (some professors round up at .5)
- Ask about extra credit opportunities
- Calculate the final score needed using our calculator
- Email your professor — not to ask for a grade bump, but to ask what you can do to demonstrate mastery
- Focus study time on the highest-weighted remaining assignments
Grade Recovery Math
The more weight remaining in the course, the more room you have to recover:
| Current Grade | Weight Remaining | Grade Needed on Remaining | To Reach |
|---|---|---|---|
| 75% | 30% | 91.7% | 80% (B-) |
| 75% | 40% | 87.5% | 80% (B-) |
| 75% | 50% | 85.0% | 80% (B-) |
Start early. The less weight remaining, the harder recovery becomes.
Key Takeaways
- Unweighted: total points earned ÷ total points possible × 100
- Weighted: sum of (category average × category weight)
- To find what you need on the final: (target − current points) ÷ final weight
- Check your syllabus for grading scale, rounding policy, and drop rules
- The earlier you track your grade, the more options you have to improve
Once you have per-class grades for the semester, roll them up into your overall GPA on a 4.0 scale.