Grade average calculator
Average your grades out of 100, with the highest and lowest, without filling every field.
Enter at least one grade. Required fields are marked with an asterisk (*).
A grade average is the sum of your grades divided by their count. This calculator works out the average out of 100 along with the highest and lowest grade, without requiring every field to be filled.
Formula
Average = sum of grades ÷ number of grades.
When is this useful?
Use it to track your performance across subjects, or to find your average in a term or for a course with multiple assessments.
Worked example
Example using the calculator’s values: grades 85, 92, 78, 88.
The average is about 85.75.
Grades counted 4, highest 92, lowest 78.
Assumptions
- The average is a simple arithmetic mean, not credit-weighted.
- Only filled fields are used; empty fields are ignored.
- All grades are on a single 0 to 100 scale.
- Results are estimates for academic tracking.
Common mistakes
- Mixing grades on different scales, like a score out of 50 with one out of 100.
- Treating the average as credit-weighted; it is unweighted here.
- Entering percentages from different maximums as if they were comparable.
Frequently asked questions
Does this calculator account for credit hours?
No, the average here is unweighted. If your courses are credit-weighted, use the GPA calculator.
Can I average grades from different maximums?
No. All grades are assumed to be out of 100; to combine different scales you would need to convert them first.
Methodology and review
Results are estimates for tracking and are not an official record.