Google Classroom grade calculator

How does Google Classroom calculate your overall grade?

Your teacher picks one of three settings next to “Overall grade calculation” in class settings:

With weighted grading, the category weights must add up to 100% before your teacher can save them. Work set to Excused is removed from the calculation. Google’s example: five assignments at 100% and one excused still average 100%.

Source, checked October 2026: Google’s Set up grading.

What if a category has nothing graded yet?

Classroom leaves it out and scales the other weights in proportion. Google’s Classroom API guide gives the example: with weights of 20% for homework, 10% for practice problems and 70% for quizzes, and no practice problems, “Classroom adjusts the weights to ~22% for homework and ~78% for quizzes when calculating overall grades.” That is 20 ÷ 90 and 70 ÷ 90.

So early in a term a single category can carry far more than its weight. If tests are 40% of the grade and none have been graded, your classwork and quizzes make up all of your current grade. The calculator does the same scaling and shows each category’s current share.

Source, checked October 2026: Google for Developers, Classroom API grades guide.

Is a category average by points or by percent?

Google’s help says Classroom “finds a student’s average for a category,” and its example uses assignments that are all out of 100, so both ways give the same answer. They differ when assignments in a category have different point values. A 9/10 and a 40/100 average to 49/110, 44.55%, by points, but to 65% by percent.

This calculator averages by points: points earned divided by points possible in the category. When your categories mix point values, it also shows the grade with each assignment’s percent averaged instead, so you can compare both with the grade Classroom shows you.

Why can’t I see my overall grade in Google Classroom?

Your teacher decides. “You can see your overall grade if your teacher shares it. Not all teachers share overall grades, so you might not see it.” Teachers share it by clicking Show next to the overall grade setting, and the option doesn’t exist when the class uses No overall grade.

Grades also stay with your teacher until they return the work. In the gradebook, “grades you enter save as drafts until you click Return,” and students can view them only after that. If an assignment shows no grade for you, leave it out of the calculator.

Sources, checked October 2026: Google’s See your overall grade for a class and View or update your gradebook.

How do grading periods work in Classroom?

Without grading periods, “grades are calculated for the duration of the class.” Schools on the Education Plus or Teaching and Learning Upgrade editions can add grading periods, such as quarters or semesters. Assignments are then sorted into periods by due date (or publish date if there is no due date), and each period’s overall grade only counts work due in that period. To calculate one period, enter only that period’s grades.

Sources, checked October 2026: Google’s Create or edit grading periods and the Classroom API grades guide.

A worked example

Weighted by category, with nothing graded yet in tests. The Load the example button puts these numbers into the calculator.

Overall grade: (30 × 88.57 + 30 × 80) ÷ 60 = 84.29%. Averaging each classwork percent instead (90, 90 and 80) gives 83.33%. Graded by total points, the same work is 71 of 85 points, 83.53%.

What the first test needs: if it is worth 100 points, 86.08 points brings the overall grade to 85%, once tests count at their full 40%.

Why your Classroom grade might not match

• Drafts. Grades your teacher entered but has not returned are not visible to you yet.
• Missing work. Google’s API guide says missing assignments get a draft grade that defaults to 0 and that teachers can change. Enter a 0 only if your teacher returned the work with one.
• Ungraded assignments. An assignment with no point value is ungraded and does not count in the overall grade.
• Points or percent average. See the section above. Compare both figures the calculator shows.
• Grading periods. If your class uses them, mixing grades from two periods gives a grade Classroom never shows.
• Your school’s report card. Some schools export Classroom grades to a student information system, where the report card grade is set. Classroom’s grade categories do not transfer with that export.

The points grade calculator and weighted grade calculator handle any course graded the same two ways.

Each school gradebook does the math its own way. There are calculators for PowerSchool, Infinite Campus, Skyward and Schoology too.

Google Classroom grade calculator FAQ

Sources

• Google, Set up grading (Classroom Help). The three settings, both worked examples, weights adding to 100% and excused work. Checked October 2026.
• Google for Developers, Classroom API grades guide. Weight scaling for empty categories, grading periods, missing and ungraded work. Checked October 2026.
• Google, See your overall grade for a class and View or update your gradebook (Classroom Help). Checked October 2026.
• Google, Create or edit grading periods (Classroom Help). Checked October 2026.