Overview & Core Concept
Multiply each category average by its decimal weight and add the products.
Mathematical Formula
\text{Weighted Grade} = \sum (G_i \times W_i)Step-by-Step Instructions
Find category averages
Compute your percentage in each category.
Multiply by category weights
Multiply category percent by decimal weight.
Sum products
Add all weighted values.
Realistic Worked Example
Weight Calculation
Homework 20% (90%), Exam 80% (80%).
- (90 * 0.20) + (80 * 0.80) = 18 + 64 = 82%
Final grade is 82.0% (B-)
Key Takeaways
- High-weight categories determine the vast majority of your grade.
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Authoritative References & Academic Standards
Vetted against official government, institutional, and collegiate guidelines
National research guidelines on rubric construction, formative grading, and equitable student achievement evaluation.
Comprehensive historical and institutional documentation of standard 10-point scales, percentage cutoffs, and GPA conversion tables.
Educational mathematical foundations for calculating arithmetic means, category weights, and statistical dispersion.