Free · No sign-up · Finals-week favorite
Final Grade Calculator: what do I actually need?
Three numbers, one answer. Enter your current grade, your final exam’s weight, and the grade you’re aiming for.
The formula
The math behind “what do I need”
This calculator solves one equation for you: how high does your final need to be so that, blended with everything you’ve already earned, you land on your target grade?
| Current grade | Final weight | Target | Score needed |
|---|---|---|---|
| 84% | 25% | 90% | 108% — not reachable |
| 84% | 25% | 85% | 88% |
| 92% | 15% | 90% | 77.3% |
Notice the first row: when the required score passes 100%, the target simply isn’t reachable this term — that’s useful to know before you spend finals week chasing an impossible number.
Beyond the number
What to do once you know your required score
| Required score | What it usually means |
|---|---|
| Below your current average | You’re already on track — focus study time on your weakest topics rather than everything equally. |
| Close to your current average | A normal amount of final-exam prep should get you there — treat it like any other test. |
| 90%+ but under 100% | Reachable, but only with focused, comprehensive review — this is the range where a study plan actually changes the outcome. |
| Over 100% | Not mathematically possible this term. Worth a conversation with your instructor about extra credit or grade replacement options, if your school offers them. |
FAQ
Final exam questions
What score do I need to keep an A?
Enter your current grade, final weight, and 90% (or your school’s A- cutoff) as the target to get your exact number.
What if no score can save my grade?
If the needed score is above 100%, your target is out of reach this term even with a perfect final.
Does it matter what the final covers?
No — only its weight toward your overall grade matters for this calculation.
Should I round my current grade before entering it?
No — use the most precise number your gradebook shows (e.g. 87.4% rather than 87%). Small rounding differences compound once divided by the final’s weight.
What if my class has more than one final-weighted item?
Combine them into a single effective weight first — for example, a final exam (20%) plus a final project (10%) together act as one 30% category for this calculator.