Final grade calculator
The exam mark you need to reach a target final grade.
Fill in the fields and the result will appear here automatically.
Works backwards from the grade you want: the current mark contributes its share, the exam contributes the rest, and the difference is what the exam has to deliver. A result above one hundred is an answer rather than an error — it says the target is out of reach with one exam, and the number tells you by how much.
How it works
Formula and logic
Let C be the mean for the completed portion, T the target, and w the exam weight in percent. Required score X = [100T − C(100 − w)] / w. C and T range from 0 to 100; 0 < w ≤ 100. C is not already weighted points earned. X > 100 is unattainable with an exam maximum of 100; X ≤ 0 means a zero exam score suffices. Institutional rounding rules are not included.
Example
At 78 percent with an exam worth 30 percent, reaching 85 would need 101.33 — more than the exam can give.
Fields and units
- Current grade — %
- Target grade — %
- Exam weight — %
How to use
- — Enter the percentage mean for the completed portion before weighting it.
- — Enter the final grade you are aiming for.
- — Enter how much the exam weighs.
Method and limitations
- Calculation method
- Formula and logic
- Limitation
- C and T range from 0 to 100; 0 < w ≤ 100. Institutional rounding rules are not included.
FAQ
What does exam weight mean?
The share the exam takes in the final grade. The rest comes from work already done, and the two add up to one hundred percent.
Why can the answer exceed one hundred?
Because the target is no longer reachable with that single exam. The figure is kept so you can see how large the shortfall is.
Is the current grade a percentage?
Yes. If your course marks out of a different scale, convert it first — the calculation works in percent throughout.
Does this convert to a letter grade?
No. Letter scales differ by school and country, and without a reference table any conversion would be invented.