Final Grade Needed Calculator

Find the final-exam score you need to reach your target grade.

Score needed on the final

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Verdict

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Final counts for

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If you score 100%

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If you score 0%

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Assumes your current grade covers everything except the final. Over 100% means the target needs more than the final alone.

Solving the grade backwards

Your final grade is a weighted average: the work so far counts for part of it, and the final exam for the rest. To find the score you need, you just rearrange that average to solve for the final.

needed = (target − current × (1 − weight)) ÷ weight

The calculator also shows the best and worst cases — what scoring 100% or 0% on the final would leave you with — so you can see the whole range at a glance.

Worked example

With 82% going in and a final worth 40% of the grade, you would need 89.5% on the final to finish the course at 85% overall.

Planning your revision

Knowing the target score turns vague worry into a concrete goal. If the number is comfortably reachable, you can pace yourself; if it is high, you know to prioritise. And if it is over 100%, it is better to learn that now than after the exam.

Worth remembering

Heavier finals swing more. A big weight makes the needed score less extreme.
Check the cases. The 100% and 0% rows show your real range.
Confirm the weighting. Make sure your current grade truly excludes the final.

Frequently asked questions

What does "current grade" mean here?

Your grade so far from everything except the final — the combined result of all work that has already counted. The final exam then makes up the remaining weight.

What if the score needed is over 100%?

It means the target is out of reach from the final alone. You would need extra credit, or to revise the target. The calculator flags this for you.

What if it is zero or negative?

Then you have already secured the target — even a zero on the final would keep you at or above it. Worth confirming, but reassuring.

How is it calculated?

Needed = (target − current × (1 − weight)) ÷ weight, with the final’s weight as a fraction. It simply solves the weighted-average formula for the unknown final score.