CalcPenguin

Final Exam Grade Calculator

Find the score you need on your final exam to reach the overall grade you want, from your grade so far and how much the final counts.

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Score needed on the final

79.5%

Outlook
Reachable
Best overall grade possible
83.2%

To finish on 75%, you need 79.5% on a final worth 40% of your grade.

How it's worked out

  1. What you've already earned72% × 60%43.2%
  2. What the final must add75% − 43.2%31.8%
  3. Score needed on the final31.8% ÷ 40%79.5%

The formula

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

Worked example

With 72% so far and a final worth 40%, you've earned 72 × 0.6 = 43.2 points. To finish on 75% you need 31.8 more, so 31.8 ÷ 0.4 = 79.5% on the final.

Questions people ask

How do I work out what I need on the final?

Take your target, subtract what you've already earned (current grade × the share of the course before the final), and divide by the final's weight.

What if the answer is over 100%?

Then the target can't be reached even with full marks; the calculator shows the best overall grade still possible.

What does the final's weight mean?

The share of your overall grade the final is worth, for example 40%.

Formula and rules last checked 25 October 2026Written and tested by the CalcPenguin teamReport a problem