Math & Dates Grade calculator
Work out your current weighted grade from assignments completed so far, and find the score you need on what remains to hit a target.
| Assessment | Score % | Weight % | Remove |
|---|---|---|---|
Leave the score blank for work you have not been graded on yet.
Current grade
84.4%
Letter grade B, based on the 50% of the course graded so far.
- Graded so far
- 50%
- Still to come
- 50%
- Weights total
- 100%
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Reembun. (2026, July 27). Grade calculator. https://reembun.com/grade-calculator
How to use it
Choose the question
Current grade works out where you stand now. What I need works out the mark required on what is left.
Enter each assessment
One row per piece of work with its score and its weight. The weights are what turn scores into a grade.
Set the target
Target overall grade tells you the mark the remaining assessment has to reach, and says plainly when that mark is out of reach.
How weighted grades work
Almost every syllabus assigns a weight to each category, and the final grade is the weighted average:
grade = Σ (score × weight) ÷ Σ weightOnly graded work belongs in that sum. Leave anything not yet returned blank and the calculator excludes it from the denominator, which is why your grade partway through a term is measured against the portion completed rather than the whole course.
Finding what you need
The more useful question is the reverse one. Given a target overall grade, what average do you need on everything that remains?
needed = (target − points already banked) ÷ remaining weight × 100“Points already banked” is the sum of score × weight for completed work, expressed on the same 0 to 100 scale as the target.
A worked example
| Assessment | Score | Weight |
|---|---|---|
| Homework | 88% | 20% |
| Midterm | 82% | 30% |
| Final exam | not taken yet | 50% |
Points banked: (88 × 0.20) + (82 × 0.30) = 17.6 + 24.6 = 42.2
Current grade on the graded half: 42.2 ÷ 0.50 = 84.4%, a solid B.
To finish with 90% overall:
needed = (90 − 42.2) ÷ 50 × 100 = 95.6%To finish with 80%, the requirement falls to 75.6%. To merely pass at 60%, 35.6% would do it. Seeing all three at once is usually what turns anxiety into a study plan.
The leverage of the final exam
A final worth 50% can move a grade dramatically; one worth 15% cannot. In the example above, the gap between scoring 70% and 100% on the final is 15 percentage points of final grade. If the final were worth 15%, the same range would move the grade by only 4.5 points.
This tells you where effort pays. Where a small-weight assignment is concerned, the honest answer is often that it cannot change your outcome, and knowing that is worth as much as knowing the reverse.
Letter grade bands
Most US courses use these cut-offs, though your syllabus governs:
| Percentage | Letter |
|---|---|
| 97-100 | A+ |
| 93-96 | A |
| 90-92 | A− |
| 87-89 | B+ |
| 83-86 | B |
| 80-82 | B− |
| 77-79 | C+ |
| 73-76 | C |
| 70-72 | C− |
| 60-69 | D range |
| Below 60 | F |
If you are within a point of a boundary, ask whether the course rounds. Many do, and a 89.6% that rounds to an A− is worth the email.
Common questions
What does it mean if the calculator says I need more than 100%?
The target is no longer reachable with the weights remaining. If you need 112% on a final worth 40%, no score on that exam can get you there. Check whether extra credit exists, whether the lowest score is dropped, or revise the target. Those three account for most recoveries.
My weights do not add up to 100%. Is that a problem?
The calculator still works. It computes the current grade proportionally against the weight actually graded. But a total other than 100% usually means a category was mistyped or omitted, so it flags the discrepancy. Check it against the syllabus before trusting the "what I need" figure, which does depend on the totals being right.
How do I handle a category with several assignments, like eight quizzes worth 20% together?
Average the quizzes yourself and enter the average as a single line worth 20%. Entering each quiz at 2.5% works too and gives the same answer, but it is more typing and easier to get wrong.
Does this work if my course uses points rather than percentages?
Yes, with a small translation. Enter each assignment's score as a percentage of its possible points, and use the possible points as the weight. A 45/50 on a 50-point assignment becomes a score of 90 with a weight of 50.
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