How is the required final score calculated?

Your current grade covers the non-final portion of the course (100% minus the final's weight). The tool solves for the final score that, combined with that portion, reaches your target — using (target − current × (1 − weight)) ÷ weight.

What if the result is above 100%?

That means your target is not reachable from the final alone — even a perfect final would not raise your grade enough. The calculator flags this so you can set a realistic target.

Is anything uploaded?

No. The calculation runs entirely in your browser and nothing is sent to any server.

What if the calculator says I need 0% or less?

It means your target is already locked in — you have done enough in the rest of the course that even a zero on the final would still reach your goal. You cannot score below 0, so any passing effort secures the target.

Where do I find my final exam weight?

Check the course syllabus or grading scheme — it lists how each component contributes to the overall grade. The final exam weight is the percentage of the total grade the final is worth, often 20% to 40%.

Does this work for letter grades?

Convert your current and target letter grades to their percentage equivalents first (for example B = 83%, A− = 90%), then enter those numbers. The calculator works in percentages.

Final Grade Needed Calculator

Final grade needed calculator

As exams approach, the practical question is rarely “what’s my grade?” but “what do I need on the final to hit my target?” This calculator answers exactly that: enter your current grade, your goal, and how much the final is worth, and it returns the minimum score you must earn on the final — and warns you if the goal is out of reach.

How it works

Your current grade already accounts for the part of the course outside the final exam — that is (100% − final weight) of your total. The final makes up the rest. The tool solves for the final score that, blended in at its weight, lifts your overall grade to the target:

needed = (target − current × (1 − w)) ÷ w, where w is the final’s weight as a decimal.

If the result exceeds 100%, the target is impossible from the final alone and the calculator flags it. If it is 0% or below, you have already secured the target.

Example

Suppose your current grade is 82%, your target is 85%, and the final is worth 30% (w = 0.30):

needed = (85 − 82 × 0.70) ÷ 0.30 = (85 − 57.4) ÷ 0.30 = 27.6 ÷ 0.30 = 92%.

So you need at least 92% on the final to finish the course at 85%.

Current	Target	Final weight	Score needed
82%	85%	30%	92%
75%	70%	40%	62.5%
60%	80%	25%	140% (unreachable)

Everything runs in your browser — your grades never leave your device.