Weighted Grade Calculator
Calculate a course grade from category scores and weights (homework, quizzes, exams), normalising weights that do not add to 100 %.
Your inputs
Results
Weighted grade
85.9%
- Sum of weights
- 100
✓Exact calculation — rounded only for display
| Category | Score | Weight | Points contributed |
|---|---|---|---|
| Homework | 92% | 20% | 18.4 |
| Quizzes | 85% | 30% | 25.5 |
| Midterm | 78% | 20% | 15.6 |
| Final | 88% | 30% | 26.4 |
What this calculator does
Most syllabi weight assessment categories differently. Enter each category’s score and weight to see your overall grade.
Formula and method
Grade = Σ(score × weight) ÷ Σ weights
Worked example
Calculated by this tool with its default inputs:
Inputs
- Categories — one per line: name, score %, weight %: Homework, 92, 20 Quizzes, 85, 30 Midterm, 78, 20 Final, 88, 30
Results
- Weighted grade: 85.9%
- Sum of weights: 100
How to read the results
If some work is not yet graded, leaving it out gives your current standing.
Assumptions and limitations
- Grading scales and conversion rules differ between schools and countries; adjust the inputs to match your institution’s official policy.
Questions
Do weights have to total 100?
No — they are scaled automatically, which is useful mid-term.
Methodology and verification
- Result type
- Exact mathematical calculation (rounded only for display)
- Formula version
- 1.0
- Automated verification
- 3 reference and validation test cases, checked against independently computed values. The site cannot be built if any of them fail.
- Editorial review
- Awaiting human editorial review. The explanation was drafted with AI assistance; the formula and examples are verified by the automated tests above.
Privacy
Everything you enter is calculated in this browser and is not sent to Numerith or anyone else. Inputs are added to a share link only if you choose to include them. Privacy policy