Final exam worth 25%: what score do I need?
If your final is worth 25% of your grade and you have a 78% going in, you need 86.00% on the final to finish with 80%. Full table for every current grade and target.
Each final-exam point is worth 0.25 course-grade points. Assumes the final is the only remaining grade.
| Current grade | Target 60% | Target 70% | Target 80% | Target 90% |
|---|---|---|---|---|
| 50% | 90.00% | 130.00% | 170.00% | 210.00% |
| 55% | 75.00% | 115.00% | 155.00% | 195.00% |
| 60% | 60.00% | 100.00% | 140.00% | 180.00% |
| 65% | 45.00% | 85.00% | 125.00% | 165.00% |
| 70% | 30.00% | 70.00% | 110.00% | 150.00% |
| 75% | 15.00% | 55.00% | 95.00% | 135.00% |
| 80% | 0% | 40.00% | 80.00% | 120.00% |
| 85% | 0% | 25.00% | 65.00% | 105.00% |
| 90% | 0% | 10.00% | 50.00% | 90.00% |
| 95% | 0% | 0% | 35.00% | 75.00% |
| 100% | 0% | 0% | 20.00% | 60.00% |
above 100% (not reachable without extra credit) · 90% or higher · already secured
What a 25% final means
The rest of your course, 75% of the grade, is already locked in. Your current grade carries 3 times the weight of the final. A strong final can lift you about one letter grade; it cannot usually rescue a failing semester on its own.
Worked example
Current grade 78%, final worth 25%, target 80%. Required score = (80 − 78 × 0.75) ÷ 0.25 = 86.00%. Scoring exactly that on the final gives (78 × 0.75) + (86.00 × 0.25) = 80.00%.
Check these before you trust the table
- Your current grade excludes the final.
- The final is its own weight in the syllabus, not part of a larger exam category.
- No drop or replacement rule applies to the final.