SCHOOL & EDUCATION · FREE INTERACTIVE CALCULATOR
Grade Calculator
Calculate your weighted course grade from category scores and weights. Change the inputs below to calculate a result immediately. No account required.
Weighted grade
89.5%Total weight
100How to calculate the answer
Weighted grade = Σ(score × weight) ÷ Σ weights.
Worked example
Scores 90, 85 and 95 with 30%, 40% and 30% weights yield 89.5%.
For the example inputs shown above, the calculated results are:
| Weighted grade | 89.5% |
|---|---|
| Total weight | 100 |
How to interpret this result
Enter consistent score and weight scales. This does not model extra credit.
These figures illustrate the displayed method using the default inputs. Change the inputs to explore another case, and check units and conventions relevant to the problem.
Further reading and source context
For background and independently maintained guidance, see U.S. Department of Education. This source supplies context rather than personalized verification of the calculator output.
Why category weighting matters
A grade depends on how assignments and examinations are weighted. Averaging percentages without category weights may not match the policy in your syllabus.
Estimate cautiously
Keep track of missing grades, dropped assignments and extra-credit policies. Use the instructor’s actual calculation method when available.
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Frequently asked questions
How is a weighted grade calculated?
Each score is multiplied by its weight, summed, and divided by the total weight.
Can I find the grade I need on a final?
Check your syllabus for weights, then adjust the score until you reach your target.
Do weights need to total 100?
No. The tool divides by the total weight.
Sources and further reading
Last updated: . Results are estimates for information only and are not financial, medical or professional advice.