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Weighted Grade Calculator

Calculate your overall grade when your teacher uses weighted categories — homework, quizzes, exams, projects. Add as many rows as you need. Weights don't have to add up to exactly 100 — we'll warn you if they don't.

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Your result

Weighted average

81%

Letter grade: B-

Total weight entered: 100%

How a weighted grade is calculated

A weighted grade is just an average where each piece counts more or less than the others. Your homework might count 15% of the final grade while the final exam counts 30% — the weighted average gives you the overall picture.

The formula

Weighted average = Σ (grade × weight) ÷ Σ (weight)

A worked example

Suppose your class breaks down as: Homework 90% (weight 20%), Quizzes 85% (weight 30%), and Exams 75% (weight 50%). The math: (90 × 20 + 85 × 30 + 75 × 50) ÷ 100 = (1800 + 2550 + 3750) ÷ 100 = 81.0. Your overall grade is 81%.

When to use this calculator

Use the Weighted Grade Calculator anytime your teacher uses categories with different weights — the most common setup in U.S. middle, high school, and college classes. If your class has a simple single-final-exam structure, the Final Grade Calculator is faster. If you're tracking GPA across multiple courses (4.0 scale), use the GPA Calculator.

Weighted grade calculator — questions students ask

What is a weighted grade?
A weighted grade gives different categories of work different importance. For example, the final exam might count 30% of your overall grade while homework only counts 15%. The total is the average of all categories weighted by their importance.
What if my weights don't add up to 100%?
The calculator still works — it gives you the average across the categories you've entered. But if your weights are below 100%, you're probably missing a category. Most often it's the final exam. Add it to get the full picture.
Can I include extra credit?
Yes. Add an 'Extra credit' category with the points you earned as the grade and the percentage value your teacher set as the weight. If your teacher just adds extra credit points to a category total, bump up that category's grade directly instead.
How is a weighted grade different from GPA?
A weighted grade is one course's overall percentage. GPA (grade point average) is the average of your letter grades across all courses, usually on a 4.0 scale. Once you know each course's weighted grade, convert to a letter grade and use the GPA Calculator.
My teacher uses points instead of percentages. How do I enter?
Convert each category to a percentage first. If you scored 45 out of 50 on a quiz worth 100 total points in the quiz category, that's 90%. Enter 90 as the grade and the category's weight as usual.