Final Grade Calculator
What do you need on your final to get an A? Plus your maximum possible grade.
Check your syllabus. This calculator assumes your current grade and the final weight are exactly as entered. Some courses drop the lowest score, curve grades, or weight categories differently — if yours does, the result is an estimate, not a promise. For your overall semester GPA, pair it with our GPA calculator.
What do I need on my final?
Every finals season, students ask the same question: "What do I need on my final to get an A?" The answer is a simple weighted-average equation, but doing it by hand under stress is where mistakes happen. If your current grade is 85%, your final is worth 30% of your course grade, and you want a 90% overall, you need (90 − 85 × 0.70) ÷ 0.30 = 101.67% on the final — which means the A is mathematically out of reach, and your best possible grade is 89.5%. Knowing that before the exam changes how you study: you stop chasing an impossible number and focus on protecting the highest grade you can still earn.
This final exam calculator gives you three things: the exact final-exam score your target requires, the maximum grade still possible even with a perfect final, and a full table showing what final score each letter grade (A, B, C, D) requires — so you can see every outcome at a glance instead of re-running the maths for each target. For your overall semester GPA, pair it with our GPA calculator.
How the final exam calculator works
Required final = (target grade - current grade x (1 - final weight)) / final weight. This final exam calculator — the same thing as a final grade calculator — works out the score you need on your final to reach a target course grade. With a current grade of 85%, a 30% final, and a 90% target: (90 - 85 x 0.70) / 0.30 = 101.67% — impossible, so your maximum possible grade is 89.5%.
The calculator also shows what final score each letter grade (A, B, C, D) needs, so you can see every outcome at a glance instead of re-running the maths for each target.
For your overall semester GPA, pair it with our GPA calculator.
How to use this calculator
- Enter your current course grade as a percentage, before the final.
- Enter the final exam weight — the percentage of your course grade the final is worth (check your syllabus).
- Enter your target course grade, or tap a quick letter button (A = 90%, B = 80%, C = 70%, D = 60%).
- Click Calculate to see the final score you need, your maximum possible grade, and the full letter-grade table.
Frequently asked questions
How is the required final score calculated?
Required final = (target grade − current grade × (1 − final weight)) ÷ final weight. With a current grade of 85%, a 30% final, and a 90% target: (90 − 85 × 0.70) ÷ 0.30 = 101.67%.
What if the required score is over 100%?
Then your target is impossible — even a perfect final cannot reach it. The calculator says so clearly and shows your maximum possible grade instead — with 85% and a 30% final, that is 85 × 0.70 + 100 × 0.30 = 89.5%.
What if the required score is below 0%?
Then you have already secured your target — you could score 0% on the final and still finish at or above it. (Still show up for the exam, though.)
Is this the same as a final exam calculator?
Yes — a final exam calculator and a final grade calculator are the same tool. Both work out the score you need on your final exam to reach a target course grade, and both show your maximum possible grade if the target is out of reach.
What if my course drops the lowest grade or curves?
Then this is an estimate. Dropped scores change your current grade, and curves change the final mapping. Recompute with your adjusted current grade for a closer answer.
Does this work for weighted category grades?
Yes, as long as "current grade" is your overall grade across all completed categories and "final weight" is the final's share of the total course grade. If your syllabus weights categories, compute your current overall grade first.
What is my maximum possible grade?
Your current grade weighted by the non-final portion, plus 100% on the final: current × (1 − weight) + 100 × weight. With 85% and a 30% final, that is 89.5% — the best you can finish with, even with a perfect exam.
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