Grade Calculator
Combine every assignment, quiz, midterm, and final into a single weighted course grade — exactly the way your professor calculates it.
Calculate your overall course grade by combining the score and weight of each assignment, quiz, and exam.
How weighted grade calculations work
Most syllabi look something like this:
- Homework — 15%
- Quizzes — 15%
- Midterm — 25%
- Final exam — 35%
- Participation — 10%
Your grade in each category is multiplied by that category\u2019s weight, then everything is summed. So if you average 88% on homework, 80% on quizzes, 72% on the midterm, 85% on the final, and 95% on participation:
(88 × 0.15) + (80 × 0.15) + (72 × 0.25) + (85 × 0.35) + (95 × 0.10) = 82.05%
Our calculator handles this automatically — type each category\u2019s score and weight, and you get the weighted average instantly. Pair it with the Final Grade Calculator to see exactly what you need on the final to hit your target letter grade.
Common syllabus weighting patterns
| Course type | Typical breakdown |
|---|---|
| STEM lecture | HW 20% · Quizzes 10% · Midterm(s) 30% · Final 40% |
| Humanities seminar | Participation 20% · Papers 60% · Final paper 20% |
| Lab science | Lab reports 30% · Midterm 25% · Final 30% · Quizzes 15% |
| Studio / design | Projects 70% · Critiques 20% · Final review 10% |
Frequently asked questions
How does the weighted-grade calculator work?
Each assignment gets a score (0–100) and a weight (the percentage of the final grade that assignment is worth). We multiply each score by its weight, sum the products, and divide by the total weight. The result is your weighted average.
What if my weights don’t add up to 100%?
You will still get a meaningful number — it just reflects only the portion of the course you have entered. The calculator shows a warning if the total weight is not 100%, so you know to add the missing categories.
Can I use this for letter-grade assignments?
Yes. Convert each letter grade to its midpoint percentage using our scale converter (A = 95, B+ = 88, etc.) and use those numbers in the score field.
How is this different from a GPA calculator?
A grade calculator computes the percentage in a single course; a GPA calculator combines course grades across multiple classes weighted by credits. Use this tool first to find your final course grade, then plug that letter grade into the GPA calculator.