Final Grade Calculator — What Do I Need on My Final?
Updated · Free · No sign-up · Runs in your browser
Find the exact score you need on your final exam to reach the course grade you want. Enter your current grade, your target and how much the final is worth.
A table shows what you need for every letter grade, and you can also see your course grade after the final. Runs entirely in your browser — nothing you enter is uploaded, stored or sent to a server.
You need on the final
110%
Above 100% — only possible with extra credit
| Final grade | Need on final |
|---|---|
| A+ (97%) | 145% ✗ |
| A (93%) | 125% ✗ |
| A- (90%) | 110% ✗ |
| B+ (87%) | 95% |
| B (83%) | 75% |
| B- (80%) | 60% |
| C+ (77%) | 45% |
| C (73%) | 25% |
| C- (70%) | 10% |
| D- (60%) | secured |
Already took the final?
Score needed on the final (current grade 85%)
| Final worth | For 90% (A-) | For 80% (B-) | For 70% (C-) |
|---|---|---|---|
| 10% | 135% | 35% | -65% |
| 15% | 118.33% | 51.67% | -15% |
| 20% | 110% | 60% | 10% |
| 25% | 105% | 65% | 25% |
| 30% | 101.67% | 68.33% | 35% |
| 40% | 97.5% | 72.5% | 47.5% |
| 50% | 95% | 75% | 55% |
Worked examples
Current 85%, want 90%, final worth 20%
- (90 − 85 × 0.80) ÷ 0.20
→ 110% — only with extra credit
Current 83%, want 90%, final worth 30%
- (90 − 83 × 0.70) ÷ 0.30
→ 106.33%
Current 88%, want 80%, final worth 25%
- (80 − 88 × 0.75) ÷ 0.25
→ 56%
Current 72%, want 70% to pass, final worth 40%
- (70 − 72 × 0.60) ÷ 0.40
→ 67%
Final grade formula
Required final score = (target grade − current grade × (1 − final weight)) ÷ final weight, with the weight written as a decimal (20% = 0.20).
If the answer is above 100%, the target is out of reach without extra credit. If it is 0% or less, you already have the grade secured.
What grade do I need on my final to pass?
- Enter your current grade as a percentage (check your gradebook or syllabus).
- Enter the passing grade — often 60% or 70% — as the target.
- Enter the final exam weight from the syllabus. The result is the minimum score to pass.
Final grade calculator for multiple exams
If two or more tests are still to come, use the weighted grade calculator: leave those scores blank and it shows the average you need across all remaining work.
Frequently asked questions
How do I calculate what I need on my final?
Required score = (target − current × (1 − weight)) ÷ weight. For a current 85%, a target of 90% and a final worth 20%, you need (90 − 68) ÷ 0.2 = 110%.
What if the result is over 100%?
Then the target cannot be reached with the final alone. Ask whether extra credit, dropped scores or curves apply, or set a lower target.
Where do I find my current grade and the final weight?
Your current grade is in your online gradebook. The final exam weight is in the course syllabus, usually listed as a percentage of the total grade.
Does my current grade include all assignments?
It should be your grade on everything except the final. If some work is still ungraded, use the weighted grade calculator to include it.
Which letter grade scale is used?
The common US 10-point scale with plus and minus (90 A-, 93 A, 97 A+). Your school may use a different scale, so compare with your syllabus.
Are my grades saved?
No. The calculation runs in your browser and nothing is stored or uploaded.