What is a weighted grade?
A weighted grade is a course grade where each category counts for a different share of the final result. Homework might be 20%, quizzes 15%, exams 45%, and the final 20%. This calculator lets you enter those category weights and your current scores, then checks whether the included weights add to 100%. You can also test a target grade to see what score you need on a final exam or remaining assignment.
Weighted grade formula
The basic formula is:
Weighted grade = (score1 x weight1 + score2 x weight2 + ... ) / total included weight
If your included weights add to 100%, the result is a full course-grade estimate. If you only enter completed categories, the result is a current-grade estimate for the categories you have so far.
This method follows the common syllabus approach: each category score is multiplied by its category weight, then the weighted points are added together. The calculator keeps blank grades out of the current-grade result unless you enter a score and include that row.
Examples
- Homework 20% at 92, quizzes 15% at 86, exams 45% at 84, with the final still remaining.
- Labs 30%, participation 10%, tests 40%, and final 20% for a science course.
- A final-heavy class where the final exam is 40% of the total grade.
- A course where only 75% of the grade has been completed so far.
- A target-grade plan where you want a 90% overall and need to know the final exam score required.
When to use this calculator
- Before a final exam, to see what score you need.
- After grades are posted, to check your current weighted average.
- When your syllabus lists category weights but your gradebook shows separate scores.
- To compare which category has the biggest effect on your final grade.
- To explain weighted grading to a student, parent, or tutor.
Important notes
Different schools can use different grading scales, rounding policies, extra credit rules, and dropped-score policies. This calculator is meant for planning and checking the math, not for replacing your official gradebook or syllabus rules.
Calculation method and trust
WeightedGrade runs the calculation in your browser and does not send raw scores, category names, or target grades to analytics. The formula, examples, and FAQ were reviewed for the common percentage-based weighted grading model on May 2, 2026.
The calculator does not automatically apply dropped lowest scores, curve adjustments, extra credit policies, late penalties, or school-specific rounding rules. If your class uses one of those policies, adjust the category score first or compare the result with your official gradebook.
For questions or correction requests, contact contact@weighted-gradecalculator.com.