Grade Calculator
Weighted Grade (%)
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Letter Grade
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Total Weight (%)
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How Weighted Grades Work
Weighted grades account for the different importance of assignment categories. Each category (homework, tests, projects) has a weight percentage, and the final grade is calculated as: Σ(weight × grade) / Σ(weights). This ensures exams worth 40% affect your grade more than homework worth 20%.
This calculator supports three categories, which covers most course structures. Enter the weight and current average for each category. The total weight should add up to 100%, but the calculator will normalize if it doesn't.
To find what you need on a final exam, you can adjust the exam category grade until your weighted average reaches your target. Many students use this to determine the minimum exam score needed to achieve a desired course grade.
Frequently Asked Questions
How do weighted grades work?
Each category has a weight (e.g., exams 40%, homework 30%, projects 30%). Your grade is: Σ(weight × grade) / Σ(weights).
Do weights need to add up to 100%?
Ideally yes. If they don't, this calculator normalizes by dividing by the total weight. Most syllabi use weights that sum to 100%.
What grade do I need on the final?
Needed final grade = (desired overall - current weighted sum) / final exam weight. Use this calculator by adjusting the exam grade to find the target.
What is a 4.0 GPA equivalent?
A 4.0 = A (93-100%). B+ = 3.3, B = 3.0, C+ = 2.3, C = 2.0, D = 1.0, F = 0.0.