Teacher Grade Calculator

The Teacher Grade Calculator combines major coursework categories into one weighted percentage. It helps instructors verify a final grade when assignments, quizzes, exams, and participation carry different shares of the course total.

Enter the current percentage for each category and the four category weights. The calculator checks that the weights total 100%, then reports the weighted grade, the strongest and weakest contribution, and the unweighted mean for comparison.

Enter your values

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Result
weighted course grade
Weight total
Unweighted mean
Largest contribution
Smallest contribution

1. Enter category averages
Use the current percentage for assignments, quizzes, exams, and participation.

2. Assign course weights
Enter the syllabus weight for each category.

3. Confirm a 100% total
The calculation runs only when the four weights add to 100%.

4. Review the final grade
The large result is the weighted course percentage.

5. Compare contributions
Identify which category adds the most and least to the final total.

Weighted grade = Σ(Category average × Category weight)

Where:

  • Category average — earned percentage within a category
  • Category weight — category share of the final grade as a decimal
  • Σ — sum across all included categories

Assumptions: Weights must total 100%; the model does not drop scores or apply grade caps.

What the result means

Exams contribute the most points because their 40% weight outweighs their lower category average.

Results are estimates based on the values and assumptions entered.

Given:
Assignments 88% at 30%, quizzes 82% at 20%, exams 76% at 40%, participation 95% at 10%

Calculation:
88×0.30 + 82×0.20 + 76×0.40 + 95×0.10 = 26.4 + 16.4 + 30.4 + 9.5 = 82.7

Result:
Weighted course grade = 82.7%.

Interpretation:
Exams contribute the most points because their 40% weight outweighs their lower category average.

Why must the weights equal 100%?

A complete weighted grade allocates the entire final result. A total below or above 100% would understate or overstate the grade.

Can I use points instead of percentages?

Convert each category to an earned percentage first, unless your course is graded by total points rather than category weights.

Does a zero-weight category affect the result?

No. Its contribution is zero, though it remains visible as an entered category.

What does the unweighted mean show?

It treats all four categories equally and highlights how weighting changes the outcome.

Does this assign a letter grade?

No. Letter-grade cutoffs vary, so compare the percentage with the grading scale in the syllabus.