Find out exactly what score you need on your final exam to reach your target grade.
The calculator uses a simple weighted-average formula:
Required Score = ( Desired Grade − Current Grade × (1 − Exam Weight) ) ÷ Exam Weight
Example: Current grade 85%, desired 90%, final worth 30% → (90 − 85 × 0.7) ÷ 0.3 = 101.7%. Since that exceeds 100%, the 90% target is out of reach without extra credit.
| Letter | Percentage | GPA (4.0) |
|---|---|---|
| A | 90–100% | 4.0 |
| B | 80–89% | 3.0 |
| C | 70–79% | 2.0 |
| D | 60–69% | 1.0 |
| F | Below 60% | 0.0 |
Grading scales vary by school — check your syllabus for the exact breakdown.
Use the formula above. You can also use this calculator — enter your current grade, desired grade, and final exam weight, and it does the math for you instantly.
That means your desired grade is mathematically out of reach given your current grade and the exam weight — unless your teacher offers extra credit or curves the exam.
Exam weight is the percentage of your final course grade that comes from the final exam. If the final is worth 30% of your grade, everything before it counts for the remaining 70%.
Yes. It is completely free, requires no sign-up, and all calculations happen in your browser — nothing you type is uploaded or stored.
This calculator works for the common percentage-weight model. If your class uses a points system, convert each item to a percentage of the total points first, then use the same inputs.