Semester Average Calculator
Enter up to four grading period scores to calculate a semester average.
How to use this calculator
Use this calculator to estimate a semester average from multiple grading periods, quarters, or major grade checkpoints. Enter each grade that should count toward the semester average.
Example
If a student has 85% for quarter 1 and 91% for quarter 2, the calculator can average those scores to estimate the semester grade. If your school weights grading periods differently, follow your school’s rules.
Common mistakes to avoid
- Do not mix semester grades with yearly grades unless your school uses that method.
- Make sure each grading period score is entered correctly.
- Check whether exams, projects, or final assessments count separately.
Semester average rules can vary by school. This tool gives a helpful estimate, but official grades should always follow the grading policy used by the teacher, class, or school.
Who this tool helps
This calculator helps students, parents, and teachers estimate an average across up to four grading periods or major grade checkpoints.
When to use this tool
Use it when the entered grading-period scores count equally. If one quarter, exam, or category counts more than another, use the weighting rules provided by the school instead.
Frequently asked questions
Do I have to enter all four grades?
No. Enter the grading-period scores you currently have; the calculator averages the grades that are entered.
What if one grading period counts more than the others?
A simple average is not enough in that case. Follow the school’s weighted formula or grading policy.
Is this the same as a yearly average?
Not necessarily. A yearly average may combine multiple semesters or use additional rules.