A weighted grade calculator multiplies each score by its percentage weight and sums the results. Enter your grades and weights below to find your exact course average.
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Multiply each score by its weight, divide by the total weight, and the result is your weighted average. Most courses break grades into categories: homework worth 20%, quizzes worth 30%, exams worth 50%. An 80 on homework counts for less than an 80 on exams.
The formula assumes your weights sum to exactly 100 percent. If a professor drops the lowest quiz, the category weights shift. Recheck your syllabus after any grade drop and update this calculator accordingly.
Knowing your weighted average mid-semester is the fastest way to find which category is pulling your grade down. A poor quiz average at 30% weight costs more than a poor homework grade at 10% weight, even if the raw scores are identical.
Related tools: the semester grade calculator combines full category averages into a final semester percentage, the grade calculator tracks running totals, and the final grade calculator tells you what score you need on the final to reach your target.
A weighted grade calculator multiplies each assignment or category score by its percentage weight, then sums the results to find your true course average. A simple average treats all work equally; a weighted average accounts for the fact that a final exam counts more than a quiz.
Multiply each grade by its weight (as a decimal), then add those products together. For example: 85 x 0.40 plus 90 x 0.60 equals 34 plus 54, which equals 88. The weights must sum to 1.0 (or 100%) for the result to be a true average.
If weights sum to less than 100, some grade points go unaccounted and the result will be lower than your actual standing. If they exceed 100, the result is inflated. This calculator warns you when the weights are off so you can fix the inputs before relying on the number.
Enter percentage grades (like 88, 92, 74). The weight column should also be a percentage (like 30 for 30%). If your syllabus lists weights as decimals such as 0.30, multiply by 100 before entering.
A weighted grade is a percentage average within a single course, calculated from category scores and weights on your syllabus. A weighted GPA is a cumulative index across multiple courses on a 4.0 or 5.0 scale, where AP and honors courses often get extra points added.