Calculate your exam average
Weights are normalized automatically, so they do not need to total exactly 100%.
How the Exam Average Calculator works
The Exam Average Calculator multiplies each exam score by its weight, adds the weighted contributions, and divides by total weight. If all weights are equal, the result is the ordinary arithmetic mean.
Worked example
Scores of 82%, 88%, 91%, and 86% with weights of 20%, 25%, 25%, and 30% produce a weighted average of 86.95%. The larger final-exam weight gives that score more influence than Exam 1.
Simple average versus weighted average
| Method | When to use it |
|---|---|
| Simple average | Every exam counts equally |
| Weighted average | Exams have different percentages or point importance |
| Normalized weighted average | Only completed exams are entered and weights total less than 100% |
How to use the Exam Average Calculator
- Enter each exam name and percentage score.
- Enter its syllabus weight. Use the same weight for equal exams.
- Add or remove exam rows as needed.
- Calculate the weighted average and letter grade.
- Download the calculation as PDF or Excel.
Note: The result represents only the exams entered. Homework, quizzes, projects, attendance, and extra credit may change the overall course grade.
Why weights are normalized
If entered weights total 70%, the calculator divides by 70 rather than assuming the missing 30% is zero. This estimates the average across completed exams. To model the full course, enter all graded components in the Grade Calculator.
Also try the Test Grade Calculator, Quiz Grade Calculator, or browse Education Calculators. For national education information, visit the National Center for Education Statistics.
Frequently asked questions
Do weights have to equal 100%?
No. The calculator normalizes the weights entered.
Can scores exceed 100%?
Yes, when an instructor awards extra credit. The result may also exceed 100%.
How do I calculate an equal exam average?
Give every exam the same weight, such as 1 or 25.
Does this calculate the final score I need?
No. Use final-grade planning inside the Grade Calculator for a target score.