Weighted grading is how many teachers assign different values to categories like homework, quizzes, projects, and exams. This Weighted Grade Calculator helps you quickly compute your overall grade by entering each category’s weight and your score. It’s accurate, instant, and works for any course with different weighted components.
How to Use the Weighted Grade Calculator
- Enter the weight for each grading category (for example, 1st Quarter = 42.5%, 2nd Quarter = 42.5%, Final Exam = 15%).
- Enter the grades you have received so far.
- Leave one field blank — either the semester grade or the final exam grade — depending on what you want to calculate.
- Click the appropriate calculate button to see your result inst
- Use “Calculate My Semester Grade” to find your current grade, or “What Do I Have to Get on the Exam?” to calculate the score needed on the final.
All category weights should add up to 100%. Also, this calculator shows your final course percentage, not GPA points.
Weighted Grade Formula
Final Grade = Σ (Category Score × Category Weight)
Example Calculation
| Category | Weight (%) | Weight (Decimal) | Score (%) | Weighted Contribution |
|---|---|---|---|---|
| Homework | 20% | 0.20 | 85 | 17.00 |
| Tests | 35% | 0.35 | 72 | 25.20 |
| Final Exam | 45% | 0.45 | 83 | 37.35 |
| Total | 100% | — | — | 79.55% |
Final Weighted Grade: 79.55%
Common Mistakes to Avoid
| Mistake | Why It Causes Problems |
|---|---|
| Weights don’t add up to 100% | The calculator assumes the full grade is represented; missing weight skews the result |
| Entering weights incorrectly (e.g., forgetting % values) | Weights must be converted (e.g., 25% → 0.25) before calculation |
| Leaving out a category | Excluding a graded component inflates or distorts the final grade |
| Mixing points and percentages | All inputs must use the same format for accurate results |
| Confusing weighted grade with GPA | This calculator outputs a course percentage, not GPA points |
Weighted vs Unweighted Grades
- A weighted grade means different parts of a course count for different percentages.
- An unweighted grade means all assignments count equally.
| Grade Type | How It Works | Simple Example |
|---|---|---|
| Unweighted Grade | All assignments are averaged equally | 3 tests scored 80%, 90%, and 100% → (80 + 90 + 100) ÷ 3 = 90% |
| Weighted Grade | Categories (homework, exams, projects) count for set percentages | Homework 20% (90%), Tests 50% (85%), Final Exam 30% (80%) → 85.5% overall |
Weighted Grade FAQs
What is a weighted grade?
A weighted grade is a course grade calculated by assigning different percentage values to categories such as homework, quizzes, tests, and exams.
How do I calculate a weighted grade?
Multiply each category score by its weight, then add the results together to get the final percentage.
Do the weights need to add up to 100%?
Yes. All category weights must total 100% for the calculation to be accurate.
Can I calculate my semester grade before taking the final exam?
Yes. Leave the final exam grade blank and the calculator will show your current course grade.
Can this calculator tell me what I need on the final exam?
Yes. Enter your current grades and desired final grade to calculate the score needed on the final.
Can I use this calculator for college courses?
Yes. The calculator works for high school, college, and university courses that use weighted grading.