Free grade calculator
Weighted grade calculator for any class
Add each category or assignment with its grade and weight. See your weighted course grade instantly, catch missing weight, and model changes before grades close.
Free · No sign-up · Instant results · Grades stay in your browser
Category or assignment weights
Grades can exceed 100% when extra credit applies.
89.20%
B+Weights total 100%. This is the complete weighted result.
Total weight
100%
- 1
Copy your categories
Add the categories or assignments from your syllabus or LMS grade settings.
- 2
Enter grades and weights
Use each current average and the percentage that component contributes.
- 3
Check and model
Confirm the weights total 100%, then change projected scores to test scenarios.
Weighted grade calculator for any class
A weighted grade calculator combines parts of a course that count differently toward the final result. If tests are 40% of the class and homework is 15%, a 90 in tests should affect the course grade more than a 90 in homework. Enter each current category average and its syllabus weight above; the calculator multiplies every grade by its weight, adds those contributions, and divides by the total weight entered.
Weighted grade formula
For each row, multiply the grade by its weight. Add those products, then divide by the sum of all weights: weighted grade = Σ(grade × weight) ÷ Σ(weight). For grades of 92, 84, and 95 with weights of 25%, 30%, and 45%, the calculation is (92×25 + 84×30 + 95×45) ÷ 100. The calculator keeps full precision and displays the result to two decimals.
What if the weights do not total 100%?
A syllabus normally lists categories that total 100%. If you only enter the categories graded so far, this calculator normalizes by the entered weight so you can see your current average across that subset. The weight indicator stays visible because a 90 based on 60% of the course is not the same as a locked final grade. Add remaining categories with projected scores to model the full course.
Categories versus individual assignments
Use category averages when your LMS already combines homework, tests, labs, and projects. Use individual assignments only when each assignment has its own percentage weight. Do not enter both a category average and the assignments inside that category, or those grades will be counted twice.
From calculated grade to better feedback
This tool handles course math after work has been scored. GradeWithAI handles the scoring step: it reads handwritten or digital submissions, applies your rubric, drafts per-criterion feedback, and lets you review every result before returning grades to students.
Got questions?
Weighted grade calculator FAQ
Answers to common questions from teachers. Still stuck? Email john@gradewithai.com — replies land the same day.
Multiply each grade by its percentage weight, add the products, and divide by the total weight entered. For a complete course whose weights total 100%, the result is the weighted course grade.
More grade calculators
Use the calculator that matches the gradebook question: weighted categories, a required final-exam score, or a semester average.
Grade the work behind the numbers
Once the math is settled, GradeWithAI scores the actual assignments against your rubric.
Calculate the grade. Automate the grading.
GradeWithAI scores handwritten and digital work against your rubric, then lets you review every result.
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