Let's work it out.
What this grade calculator measures
Use the grade calculator for assessments inside one course. Enter a score percentage and its weight in the complete course for each included row. Assessment labels are optional. Entirely blank rows are ignored; partially filled rows require a score and weight.
The result distinguishes your normalized average on entered work from its contribution to the full course. That distinction matters when the class is still in progress. A good average on 20% of the course is not the same as a guaranteed final result.
Worked weighted-grade example
Suppose quizzes are worth 20% of the course and your quiz average is 80%. A project is worth 30% and you earn 90%. These contribute 16 and 27 percentage points toward the complete course. The total contribution is 43 points from 50% of course weight.
The normalized completed-work average is 43 ÷ 0.50 = 86%. The grade calculator shows both 86% and the 43-point contribution. It also identifies the remaining 50% as unentered instead of pretending those missing assessments have already been completed.
What happens when weights total 100%
When the entered weights sum to 100%, the normalized average and full-course contribution are numerically the same. If all included assessments are final and no additional grading rule applies, that is the weighted course percentage under those inputs.
Weights above 100% are rejected because they do not describe an ordinary complete-course weighting model. For an extra-credit assessment, check the syllabus for its exact treatment rather than adding an arbitrary extra weight that changes the denominator.
Categories and individual assignments
You can enter category averages such as homework, quizzes and exams if the syllabus assigns category weights. Alternatively, enter individual assignments when their individual course weights are known. Do not enter both a category average and all the assignments inside it, which would count the same work twice.
For a points-based class, divide earned points by possible points to calculate the relevant percentage first. An assignment’s share of total course points determines its weight. Equal assignment percentages do not imply equal influence if possible point totals differ.
Missing work, dropped scores and the final exam
A missing assessment can mean ungraded work, a zero already earned, or an excused task. Those are different academic states. Enter zero only when the grading policy actually counts a zero. Exclude an ungraded item when estimating the normalized average of completed work.
The grade calculator does not automatically drop the lowest quiz or replace an exam. Apply that rule to your category average first. To find a required score on a final exam, use the final exam tool with a current average that matches its definition of non-final work.
Frequently asked questions
Is 86% my final grade when only 50% is entered?
No. It is the normalized average for the entered work. The remaining course weight can change the final outcome.
Can I enter points instead of percentages?
Convert each score to a percentage, and use its share of the whole course as the weight. Do not put raw earned points into a percentage field.
Does this replace my official transcript?
No. This is an independent planning tool. Your institution decides which courses count, assigns grade points and applies its own repeat and display rules.
Are my grades sent to a calculator service?
The calculator runs in your browser. Inputs are not submitted to our server by the calculator. Saving is optional and uses this browser’s local storage; a CSV export creates a file on your device.
Can I use a different grading scale?
Choose the matching preset or Custom numeric points and enter the values from your school’s published policy. The maximum field is a validation limit, not an automatic conversion between scales.
Keep your next step clear
Use the grade calculator to review the selected scale, credits and assumptions before using the result. Keep actual grades separate from projected scenarios and compare the estimate with your school’s instructions. Use the related tools below when you move from one semester to a cumulative plan or an individual assessment target.
Related tools: semester GPA · cumulative GPA · target planning · student guides.