It works because a course grade is a weighted average: everything before the final carries (100 − exam weight) percent, and the final carries the rest. That makes it easy to see whether a target is realistic, and how much a strong final can rescue an average term.
Calculator
Formula used
Required exam grade = (target − current × (1 − w)) ÷ w · Final grade = current × (1 − w) + exam × w
How to use the Grade Calculator
- Enter your current grade before the final exam.
- Enter how much of the course the final exam is worth.
- Type your target overall grade.
- Optionally enter a likely exam score to see the resulting final grade.
About this tool
The Grade Calculator is built for speed and accuracy: every calculation runs in your browser, so your data never leaves your device and the result updates as you type. It works equally well on a phone, a tablet or a desktop, and it is free to use as many times as you like.
Common use cases
- Finding the score needed for an A.
- Checking whether a pass is still achievable.
- Planning revision effort across subjects.
- Understanding how weighting affects your average.
Tips for the best result
- Use the latest figures you have - even a small change in rate or term can shift the outcome by hundreds.
- For annual figures, divide by 12 to get a monthly number you can compare with the result.
- Bookmark this page and revisit the calculation as the inputs change.
Frequently asked questions
What if the required score is above 100%?
Then the target is out of reach with the remaining assessments, unless extra credit is available.
Does it handle multiple remaining assignments?
Treat them as one combined item: add their weights together and use your expected average as the exam score.
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