Calculate your weighted grade by category
Enter each category — homework, quizzes, midterm, final — with its grade and weight. We'll combine them into your true course grade.
Weights total 100%
Weighted average
87.9%
Each grade counts toward its share of the total
Letter grade
B+
What is a weighted grade?
A weighted grade reflects that not all of your work counts equally. If exams are worth 60% of your grade and homework only 10%, an A on homework can't offset a poor exam — the weights decide how much each category matters.
This calculator lets you enter every category with its own grade and weight, then combines them into the single percentage that actually goes on your transcript.
Your weights don't have to add up to exactly 100%. The tool divides by the total weight you enter, so it still works if you're only partway through the semester or only want to average a few categories.
How to calculate a weighted grade
Pull the category weights from your syllabus and your scores from your gradebook.
List your categories
Add a row for each graded category — homework, quizzes, labs, midterm, final, and so on.
Enter grade and weight
For each row, type your percentage grade and the weight that category carries in the course.
Read your weighted average
The combined grade and its letter appear instantly, along with your total weight so far.
Weighted grade formula
Multiply each category's grade by its weight, add up those products, then divide by the sum of the weights.
Dividing by the total weight (rather than by 100) means the formula works whether your weights add to 100% or not — handy mid-semester.
If you enter weights as points (say 300 points of homework, 700 of exams) instead of percentages, the same formula still gives the correct normalized result.
Examples
Three weighted categories
Homework 92% (20%), midterm 85% (30%), final 88% (50%) gives (92 × 0.2 + 85 × 0.3 + 88 × 0.5) = 87.9% overall.
Weights as points
The same result comes from points: homework 3, exams 5 and 2 → (240 + 450 + 144) ÷ 10 = 83.4%. Dividing by total weight normalizes it.
Partway through the term
If only homework (95%, 15%) and the midterm (82%, 30%) are graded so far, the tool averages over the 45% entered: (14.25 + 24.6) ÷ 0.45 = 86.3%.
Why weighting matters
A 100% on homework worth 10% and a 70% on a final worth 60% isn't 85% — it's far closer to the final, because the final carries six times the weight.
Weighted average vs. simple average
A simple average treats every grade equally — add them up and divide by how many there are. A weighted average multiplies each grade by its importance first, so heavily weighted exams move your grade more than minor assignments.
Always use a weighted average when your syllabus assigns percentages to categories. A simple average will misrepresent your standing whenever the weights aren't equal.
FAQ
Weighted Grade Calculator — FAQ
Answers to the questions students ask most about this tool.
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