WHAT YOU NEED TO KNOW
Required final score = (target overall grade − current average × completed share) ÷ final-exam share. This works when the final is the only assessment remaining.
Three numbers, one clear target
You need your current average on completed work, the final exam’s share of the overall course, and your target overall grade. This calculation assumes the final is your only remaining assessment.
If your current average is 80%, the final is worth 40%, and your goal is 85%, your completed work contributes 80 × 0.60 = 48 percentage points. You need another 37 points overall. Divide 37 by 0.40 to find the final-exam target: 92.5%.
Use the right current average
Some course dashboards include ungraded work as zero; others exclude it. For this calculation, enter the average on all the work other than the final, with the final excluded. Confirm the dashboard’s method before using its number.
If other assessments remain, finish their expected-score scenario first or use the weighted-grade calculator. A final-exam target is only as reliable as the assumptions behind it.
Build a target range instead of choosing one number
With a current average of 80% and a final worth 40%, completed work supplies 48 overall percentage points. Each target below asks how many additional points the final must supply. For an 85% target, that is 37 points, so the exam score must be 37 ÷ 0.40 = 92.5%.
The 90% target would require 105% on the final. Under a 100% cap it is impossible in this model. Even a perfect final would give 48 + 40 = 88%. That upper bound is useful when choosing a realistic plan or deciding which grade boundary to discuss with your instructor.
| Target overall | Points needed from final | Required final score |
|---|---|---|
| 75% | 27 | 67.5% |
| 80% | 32 | 80% |
| 85% | 37 | 92.5% |
| 90% | 42 | 105% — above the cap |
If another assignment is still missing
Do not enter a current average that represents only part of the non-final work and treat the final as everything left. Suppose coursework is worth 30%, a project 30%, and the final 40%. Coursework is 80%, but the project has not been graded. If you assume 70% on the project, the non-final contribution is 80 × 0.30 + 70 × 0.30 = 45 points. The average across that 60% is 45 ÷ 0.60 = 75%.
Use 75% as the non-final scenario average, not 80%. To finish on 80%, the final would need (80 − 45) ÷ 0.40 = 87.5%. If the project instead earns 90%, the non-final contribution is 51 points and the required final is 72.5%. Label the assumed project score: neither scenario is an official result.
Translate the target into an exam plan
Check the exam’s marking structure. A requirement of 87.5% does not necessarily mean answering 87.5% of the questions: sections may carry different marks, and some questions may be compulsory. Use the paper’s permitted instructions and assessment rubric to identify where marks can be earned.
Keep full precision while comparing targets. If the calculator shows a rounded value near a grade boundary, leave a margin rather than assuming that a displayed decimal guarantees the boundary. Separately check requirements to sit the exam, pass a practical component or achieve a minimum final-exam mark; a high overall average does not cancel those rules.
- Confirm the final’s percentage of the whole course.
- Exclude the final from the current average.
- Resolve other missing assessments with explicitly labelled assumptions.
- Check the highest possible overall score.
- Read any separate exam-pass or component-pass rule.
When the target is outside the possible range
A required score above 100% means the target cannot be reached under a 100% score cap. Adjust your goal to explore an attainable result. Extra credit would require a different model.
A required score at or below zero means the target is already met even if the final contributes zero. This says nothing about separate requirements to sit or pass the exam; check your course rules.
Leave room around the boundary
The displayed result is rounded for readability. Avoid treating the displayed decimal as a guarantee at a grade boundary: your course may apply a different rounding rule or require a minimum score on an individual assessment.
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