Weighted Grade Calculator
Enter your score and weight for each category, like homework, quizzes, tests and the final exam. Your overall course grade updates as you type.
Introduction
Most courses don’t treat every assignment equally. A unit test usually counts more than a nightly homework check, and a semester project may carry its own weight on top. The weighted grade calculator combines each category’s average with the weight from the syllabus and returns a single course grade that matches what your teacher’s gradebook will show.
| Category | Score (%) | Weight (%) | Actions |
|---|---|---|---|
What is a weighted grade?
In many courses, not every assignment counts the same. A final exam might be worth 40% of your grade while homework is worth 10%. A weighted grade takes those different values into account and gives you one overall course grade. This calculator does the work for you.
The formula
Multiply each category score by its weight (as a decimal), then add the results.
If your weights add up to something other than 100%, divide by the total weight so the result stays on a 0 to 100 scale. The calculator does this automatically and warns you when it happens.
Weighted grade example
| Category | Score | Weight | Points earned |
|---|---|---|---|
| Homework | 92% | 10% | 9.2 |
| Quizzes | 85% | 20% | 17.0 |
| Midterm exam | 88% | 30% | 26.4 |
| Final exam | 95% | 40% | 38.0 |
| Total | 100% | 90.6% |
Working: 9.2 + 17.0 + 26.4 + 38.0 = 90.6, so the final grade is 90.6% (an A on the 10-point scale).
How to use this calculator
- List your categories from the course syllabus, such as homework, quizzes, tests and projects.
- Check that the weights add up to 100%.
- Work out your average score in each category so far.
- Type the category name, score and weight into each row. Use “+ Add category” if you need more rows.
- Read your final weighted grade below the table.
More examples
| Course | Categories (score × weight) | Final |
|---|---|---|
| Middle school science | Homework 95 × 20%, Labs 92 × 25%, Quizzes 88 × 20%, Tests 90 × 35% | 91.1% (A) |
| High school English | Essays 84 × 40%, Participation 95 × 10%, Reading quizzes 88 × 20%, Final exam 85 × 30% | 86.2% (B) |
| College intro course | Midterm 78 × 30%, Final 82 × 40%, Assignments 90 × 20%, Attendance 100 × 10% | 84.2% (B) |
Tips for teachers
- Publish the category weights in your syllabus on day one.
- Keep to four or five categories so the grade is easy to explain.
- Double-check that weights total 100% before progress reports.
Tips for students
- Rebuild your gradebook in this calculator once per term.
- Put the most effort into the categories with the highest weight.
- Track your category averages, not just single scores.
Common weighted grade mistakes
- Weights that do not add up to 100%.
- Typing a weight as 0.4 instead of 40.
- Entering a single assignment score instead of the category average.
- Rounding scores too early. Round only the final number.
- Counting an empty category as a zero. Leave it out, or enter only the categories graded so far.
Limitations of this calculator
Schools and teachers sometimes calculate weighted grades differently, for example by dropping the lowest score, pooling points, or using their own rounding rules. This calculator assumes you enter category averages and weights, and it rounds only the final result. Always confirm official grades with your school or instructor.
Frequently asked questions
What is a weighted grade?
A weighted grade is an overall grade where each category counts for a set percentage of the total, so bigger categories such as exams have more effect than smaller ones such as homework.
Do the weights have to total 100%?
They should. If they do not, the calculator scales the result by the total weight you entered and shows a warning, so you can fix the weights.
What if a category has no grades yet?
Leave that row blank or remove it. The calculator only uses rows that have both a score and a weight, so you get your grade based on the work graded so far.
Can I use points instead of percentages?
Yes. Convert each category to a percentage first (points earned ÷ points possible × 100), then enter that percentage as the score.
Is a weighted grade the same as a weighted GPA?
No. A weighted grade combines categories inside one course. A weighted GPA gives extra points to honors, AP or IB courses across all your courses.