Weighted grade calculator
Most college and many high school classes are not a simple average. Homework might be 15%, quizzes 20%, midterm 25%, final 40%. Add each category score and its weight; the page returns your course percent and letter, and can hand that percent into a “what do I need on the final” step when the final row is still empty.
GRADE CATEGORIES
Name · score · share of course
COURSE PERCENT
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Enter numbers and calculate.
Planning math only — not your school gradebook
When to use — and when not to
When to use
Syllabus has category percents; Canvas shows category averages but you want a second opinion; you are mid-semester and some categories are only partly done.
When not to
Every assignment is worth the same points with no category weights — use grade average calculator. You only have overall current + final weight — use final grade calculator.
Assumptions
Weights should sum toward 100%. If they do not, we divide by the sum of entered weights (partial term). Category score is a percent 0–100. Dropped scores must be removed before you enter the category average.
How it works
course% = Σ(score × weight) / Σ(weight) optional: solve needed score on a remaining final row for a target course %
- Add each category with its score and syllabus weight.
- Leave the final blank if you still need a required score on that row.
- Read course % (and letter) from the weighted average.
- If a remaining row is marked, solve for the score needed on it.
Examples
HW 92 @ 20%, Quizzes 80 @ 20%, Midterm 74 @ 30%, Final empty @ 30%, target 85
needed on final ≈ 94.3% after the graded share
Match Canvas “based on graded assignments” before comparing.
Labs 100 @ 10%, Exams 70 @ 90%
course ≈ 73%
A perfect lab barely moves a heavy exam category.
Gotchas
- Entering assignment points into a category meant for averages mixes units — use the category average Canvas already computed.
- Weights that sum to 90% usually mean a missing participation chunk — do not invent it.
- Extra credit is not a negative weight; add points into a category or raise a score.
- “Weighted GPA” is different — course weights here are syllabus percents, not credit hours.
Compare
Want the how-to angle with the same math? → calculating grades by weight.
Canvas-labeled landing? → canvas grade calculator.
Equal-weight average? → grade average calculator.
Related
FAQ
Multiply each category score by its weight, add them up, divide by total weight.