What if my category weights do not add up to 100%?

If weights sum to less than 100% (e.g., final exam has not been taken yet), the calculator automatically normalizes your grade by dividing by the sum of current active category weights.

Why do teachers use weighted grades?

Weighted grades ensure that critical assessments like exams and projects have a larger impact on final performance than smaller tasks like daily homework or participation.

How do I input a category if I have multiple scores?

You should first average your individual assignments inside that category (e.g. sum individual quiz percentages and divide by total quizzes) to find the category average, then enter that average here.

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Weighted Grade Calculator

Calculate your final class grade when assignments are grouped into weighted percentage categories (e.g., Homework 20%, Exams 50%, Quizzes 30%).

Interactive Weighted Grade Calculator Workspace

Live Solver

Syllabus Category

Your Score (%)

Category Weight (%)

Remove

Weighted Overall Results

Final Weighted Grade83.50%

Assigned Class LetterB

Combined Weight Registered100%

Mathematical Formula & Variables

Equation ModelWeighted Grade = Sum(Category Score × Category Weight) ÷ Sum(Weights)

Calculates overall percentage grade by multiplying your average score in each syllabus category by that category's percentage weight.

Variable Definitions

Symbol	Description
Weighted Grade	Combined overall percentage class score
Category Score	Average percentage grade inside a syllabus category
Category Weight	Percentage weight allocation of the category

How to Use the Weighted Grade Calculator

Enter category names (e.g., Homework, Exams, Quizzes).
Input the score percentage you earned in each category.
Input the category syllabus weights. The calculator automatically handles totals even if they do not sum to 100%.

Practical Example Calculation

Scenario Context: A class syllabus weights: Homework (20%), Quizzes (30%), and Exams (50%). A student averages 95% on homework, 80% on quizzes, and 75% on exams.

Step 1: Homework Weighted Contribution: 95% × 0.20 = 19.0%.

Step 2: Quizzes Weighted Contribution: 80% × 0.30 = 24.0%.

Step 3: Exams Weighted Contribution: 75% × 0.50 = 37.5%.

Step 4: Sum Contributions: 19.0% + 24.0% + 37.5% = 80.5%.

The student's overall weighted course grade is 80.50% (Letter B).