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Grade Calculator

Work out the mark needed on a final exam to reach a target grade for the course.

Details

Your Results

What Grade Calculator does

Before a final exam, the useful question is what mark is required to end at a particular overall grade. That follows from your current average and how much the final is worth.

The calculator rearranges the weighted average: the target minus the contribution already secured, divided by the weight of the final.

  • Current course percentage
  • Target final grade
  • Weight of the final exam
  • Required exam mark, including when it is unreachable

How to use Grade Calculator

  1. 1

    Enter your current grade

    The percentage you hold from work completed so far.

  2. 2

    Enter your target

    The overall percentage you want to finish with.

  3. 3

    Enter the exam weight

    The percentage of the final grade the exam accounts for.

  4. 4

    Read the required mark

    A result above 100 means the target cannot be reached even with a perfect exam.

Example

Working out what is still possible

Input

Current grade 85%, target 90%, final worth 20%

Output

Required exam mark: 110%

Above 100% means the target is out of reach. Lower the target, or check the exam weight.

Limits and known behaviour

  • It assumes your current grade already reflects everything completed and that the remaining weight is the exam alone.
  • Extra credit, dropped lowest scores, curved grading and attendance components are not modelled.
  • Results above 100% are shown rather than capped, because knowing a target is unreachable is the useful answer.
  • Institutions round final grades differently; a borderline result may go either way.

Privacy and data handling

Runs entirely in your browser

  • The calculation runs in this page. Nothing you enter is transmitted or stored.
  • The tool works offline once the page has loaded.

Site-wide data handling, including analytics and advertising, is described in the privacy policy.

Frequently asked questions

What if the required mark is over 100%?

The target is not achievable with the exam alone. Recheck the exam's weight, ask whether any extra credit exists, and otherwise set a realistic target.

Why does my current grade need to be a percentage?

Because the arithmetic is a weighted average of percentages. Convert a letter grade to your institution's percentage equivalent first.