What this calculator does
Add each graded item or category with its score and weight. The calculator combines them into a weighted average and warns you if the weights do not add up to 100%.
Calculators
Weighted Grade Calculator
Add each graded item or category with its score and weight. The calculator combines them into a weighted average and warns you if the weights do not add up to 100%.
Favorite and recently used calculator links are stored only in your browser as calculator slugs.
Result
Enter values and run the calculator to see your result.
Weighted grade formula
Weighted average = sum(score percent x weight percent) / sum(weight percent)
Weights show how much each item contributes to the final course grade. If the total weight is not 100%, the average still calculates but should be treated as partial-course progress.
Step-by-step example
- Homework: 92% with 30% weight
- Midterm: 84% with 30% weight
- Final project: 90% with 40% weight
- Weighted average = (92 x 30 + 84 x 30 + 90 x 40) / 100 = 88.8%
- Because the total weight is 100%, this is a full weighted course average.
When to use this calculator
- Use it when you want a quick planning estimate before checking your official school system.
- Use it to compare what changes when grades, weights, attendance requirements, or study hours change.
- Use it as a private browser-based tool because inputs are not stored by StudyCalc AI.
Common mistakes
- Mixing points and percentages without converting them first.
- Using the wrong grading scale for your school or country.
- Forgetting that schools may round grades or apply special rules differently.
How to interpret your result
Treat the result as a planning estimate, not an official transcript, school record, admissions conversion, or guarantee of academic outcome.
Weighted grade FAQ
Should I enter assignments or categories?
Either works. Use categories when your syllabus groups work, or individual items when you know each weight.
What if weights do not total 100%?
The calculator shows a warning because the result may represent only part of the course.
Can weights be decimals?
Yes. Decimal weights such as 12.5 are supported.
Can I use this for current grade?
Yes, if you enter the completed items and their actual weights.
Are my scores saved?
No. Inputs stay in the browser and are not stored by StudyCalc AI.
Use the exact weights from your syllabus when possible. Some schools round category grades differently.
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