What this calculator does
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.
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%.
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Result
Enter values and run the calculator to see your result.
Formula-based estimate, not an AI decision.
Compare this result with your syllabus, grading scale, attendance policy, or official school system.
Saved scenarios stay in this browser. Do not enter student ID, official transcript numbers, private school records, or sensitive personal information.
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 this helps
- Use it when each assignment, exam, or category has a different course weight.
- Use it to separate a high score on a small item from a lower score on a major exam.
- Use it before deciding which remaining task can move the final course grade the most.
Common weighted grade mistakes
- Entering category averages and individual assignments in the same list.
- Using points possible as weights when the syllabus uses percentage weights.
- Forgetting a participation, lab, quiz, or final project category.
- Treating a partial weighted average as the final course grade when weights do not total 100%.
- Ignoring category-level drops or teacher adjustments.
How to use the result
Use the weighted average to see current course progress and to identify high-impact remaining work. If the total weight is below 100%, the result is a partial snapshot, not the final course grade.
Two realistic student situations
A student may have 95% on homework worth 10% and 76% on exams worth 60%. The homework looks strong, but the exam category controls more of the final grade.
Another student may know each remaining assessment weight but not the category average. Listing each remaining item separately can show whether one project matters more than several small quizzes.
Choose inputs carefully
Use one method at a time: either category averages with category weights, or individual assessment scores with individual weights.
If your gradebook shows points instead of weights, check whether the course actually converts points directly or later applies category weights.
- Score for each item or category
- Weight for each item or category
- Whether the listed weights add to 100%
When the result can differ
Weighted grades can differ when a school drops the lowest quiz, caps late work, curves exams, rounds category averages first, or manually adjusts participation.
Check the syllabus for category weights, dropped scores, late policies, extra credit, category rounding, and whether ungraded work counts as zero.
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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