Grade Calculator
Calculate your weighted grade average and GPA, or find out what score you need on your final exam to pass.
Enter your grades and their weights (%). Weights don't need to add up to 100%.
How Weighted Grades Work
A weighted grade gives more importance to certain assignments than others. For example, a final exam worth 40% of your grade has more impact than a homework assignment worth 5%. Understanding your weighted grade helps you prioritize studying and manage academic performance.
Grade Scale & GPA Conversion
| Letter Grade | Percentage Range | GPA Points | Description |
|---|---|---|---|
| A / A+ | 93–100% | 4.0 | Excellent |
| A- | 90–92% | 3.7 | Excellent |
| B+ | 87–89% | 3.3 | Above Average |
| B | 83–86% | 3.0 | Above Average |
| B- | 80–82% | 2.7 | Above Average |
| C+ | 77–79% | 2.3 | Average |
| C | 73–76% | 2.0 | Average |
| C- | 70–72% | 1.7 | Below Average |
| D+ | 67–69% | 1.3 | Below Average |
| D | 60–66% | 1.0 | Passing (Barely) |
| F | 0–59% | 0.0 | Failing |
Tips for Improving Your Grade
- Focus on high-weight assignments — A 40% final exam has 8x more impact than a 5% quiz
- Calculate your minimum needed scores — Use the Final Grade tool to know exactly what you need
- Don't ignore small assignments — Many small grades can add up to 30-40% of your total
- Extra credit opportunities — Even 2-3% extra credit can push you from B+ to A-
- Attendance policies — Some courses drop your grade for absences, which isn't reflected in test scores
Understanding the Final Grade Formula
The Final Grade Calculator uses this formula:
For example: You have a 78% with a 35% final exam, wanting a 80% final grade: (80 − 78 × 0.65) ÷ 0.35 = (80 − 50.7) ÷ 0.35 = 83.7% needed on the final.
Frequently Asked Questions
How do I calculate my weighted grade?
To calculate a weighted grade, multiply each assignment score by its weight percentage, add all those products together, then divide by the total weight. For example: 90×30% + 85×70% = 27 + 59.5 = 86.5%. Our calculator does this automatically.
What GPA do I need to pass a course?
Most courses require a minimum of D (1.0 GPA / 60%) to pass, though many programs require C (2.0 GPA / 70%) or higher. Academic scholarships typically require a 3.0 GPA (B average) or above. Check with your institution for exact requirements.
How do I convert a letter grade to a percentage?
Common conversions: A+ = 97-100%, A = 93-96%, A- = 90-92%, B+ = 87-89%, B = 83-86%, B- = 80-82%, C+ = 77-79%, C = 73-76%, C- = 70-72%, D+ = 67-69%, D = 60-66%, F = below 60%. Exact ranges may vary by institution.
How is GPA calculated from percentage grades?
GPA is typically on a 4.0 scale: A = 4.0, A- = 3.7, B+ = 3.3, B = 3.0, B- = 2.7, C+ = 2.3, C = 2.0, C- = 1.7, D+ = 1.3, D = 1.0, F = 0.0. Cumulative GPA averages all course GPAs, often weighted by credit hours.
What score do I need on my final exam to pass?
Use our Final Grade Calculator: enter your current grade, the final exam weight %, and your desired passing grade. The formula is: Final Score = (Desired Grade − Current Grade × (1 − Final Weight)) ÷ Final Weight. For example, with 75% current, 40% final weight, wanting 70%: (70 − 75 × 0.6) ÷ 0.4 = (70 − 45) ÷ 0.4 = 62.5%.
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