Weighted Grade Calculator

Multiply each category's score by its weight, add those products up, and divide by the total weight. Homework 95 at 20%, quizzes 88 at 15%, tests 82 at 40%, participation 100 at 10% and a final of 78 at 15% gives (1900 + 1320 + 3280 + 1000 + 1170) ÷ 100 = 86.7% — a B. The calculator above runs exactly this example.

The calculator normalises: it divides by the weights you actually entered instead of 100, so each category keeps its correct proportion of the grade. Scores of 90, 80 and 70 at weights of 30, 30 and 20 give 6500 ÷ 80 = 81.25%, not the misleading 65% you would get by dividing by 100. A note appears whenever this happens — and if a category is simply missing, add it, because normalising is a fallback, not a fix for missing data.

Different 'weighted', different job. A weighted grade combines the categories inside one course (homework, tests, final) by their syllabus weights. A weighted GPA is a school-level average across courses that adds bonus points for Honors and AP classes. This page does the course-grade version; the weighted GPA calculator does the other one.

Leave it out entirely — delete the row or clear its score — and the calculator works out your grade from the categories that count so far, normalising their weights. Just remember the result is a standing, not a final grade: the missing category will still move it. If the missing piece is the final exam and you want to know what it has to be, that is the final exam calculator's question.

Because weights pull the result toward the heavy categories. If tests are 40% of your grade and your test average is your weakest score, the weighted grade lands below your simple average — by design. The fix is in the same place: the category with the biggest weight is where improvement pays most, point for point.

The syllabus is the contract, and most teachers follow it — but details like dropped lowest scores, extra credit, and rounding happen inside categories before the weights apply. Enter your category scores as your gradebook shows them (post-drop, post-curve) and the weighting here will match. Where your gradebook's category score differs from your own average of its assignments, trust the gradebook figure.