How to Calculate a Test Average
A test average can be a simple percentage average or a points-weighted average, depending on whether each test has the same point value.
- Search intent
- A student wants to average test scores before using a course grade calculator.
- Last updated
- 2026-05-26
Use a simple average only when tests are equal
If every test is worth the same number of points, add the percentages and divide by the number of tests.
This is the fastest method, but it is wrong when one test is worth more points than another.
simple average = sum(test percentages) / number of tests
Use points when tests have different totals
When tests have different point totals, add points earned and divide by points possible.
This gives larger tests the correct amount of influence in the average.
points average = total points earned / total points possible x 100
Put the test average into the right category
After calculating the test average, use it in the exam or test category of your course grade calculator.
Do not average the test category with homework or quizzes unless the syllabus says they have equal weight.
Practical example
Scores of 88/100, 42/50, and 92/100 are 222 points earned out of 250 possible, so the points-weighted test average is 88.8%.
Planning note
Match your teacher's point system. A simple average can overstate or understate the result when test point totals differ.
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FAQ
- Can I just average test percentages?
- Only when the tests have equal weight or equal point totals.
- What if one test is dropped?
- Remove it only if your syllabus or instructor says it is dropped, then recalculate the average.
- Is a test average the same as a course grade?
- No. It is usually one category inside the course grade.
Disclaimer
GradeTally is an independent planning tool. Use these examples to understand the math, then check your school, instructor, syllabus, transcript, or advisor for official rules.