How to Use This Calculator
- Enter the score for each quiz in the input fields (0-100).
- Adjust the "Total Number of Quizzes" to match how many quizzes you've taken.
- Click the "Calculate" button to see your average score and letter grade.
- Use the "Reset" button to clear all inputs and start over.
Understanding Your Results
The calculator provides three important metrics:
- Average Score: The mean of all your quiz scores.
- Letter Grade: A standard letter grade based on your average score:
- A: 90-100
- B: 80-89
- C: 70-79
- D: 60-69
- F: Below 60
- Percentage: Your performance as a percentage of the maximum possible points.
Calculator Formula
The calculator uses the following formulas:
Average Score = (Sum of all quiz scores) / Number of quizzes
Percentage = (Average Score / Maximum Possible Points) × 100%
Example
If you have four quizzes with scores of 85, 92, 78, and 88:
- Total points = 85 + 92 + 78 + 88 = 343
- Average = 343 ÷ 4 = 85.75
- Percentage = (85.75 ÷ 400) × 100 = 85.75%
- Letter grade = B