semkuWeighted grades calculator
Add each grade and its weight to find your weighted average.
Calculation rules
Weighted average = sum of (grade percentage × weight) / sum of weights; calculate with unrounded values and round the final percentage once to two decimal places, with ties away from zero.
A total below 100% gives the average for the graded portion, with 100 minus that total remaining; a total above 100% is accepted and the average divides by the actual total. Zero-weight rows do not affect the average, but the total weight must be positive.
Grades can be percentages or earned points / possible points, mixed across rows; possible points must be greater than zero and extra-credit grades above 100% are allowed. Rows with every field blank are skipped.
Letter grades and GPA are not calculated; for a required final-exam score, use the Final grade calculator, where entering a rounded current grade can slightly change the result.
Frequently asked questions
- How do I enter 45 points out of 50?
- Enter 45/50 in Grade; that row is treated as 90%, and its weight determines its contribution to the average.
- Must my weights add up to 100%?
- No. Below 100%, the result is the average for the graded portion; above 100%, the calculation divides by the total weight you entered.
- Can I include extra credit or a zero weight?
- Yes. A grade above 100% is allowed, and a zero-weight row leaves the average unchanged as long as another row has positive weight.
- Is this the final-exam score I need?
- No. It is the weighted average of your entered grades; use it as the current grade in the Final grade calculator to work toward a target.
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For details, see the privacy policy in Korean.
Calculations run in your browser without sending your calculation inputs or results to the server. See “Privacy on this page” for information about access data.