Enter each grade and the weight it carries. The weights can be percentages, points, or any numbers — the calculator works out the weighted average either way.
Weighted Average
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Letter Grade
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Grades Counted
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How to Calculate a Weighted Grade
A weighted grade is an average where some grades count more than others. Instead of treating every grade equally, each one is multiplied by a weight that reflects how important it is. This calculator handles any weighting: percentages, points, or plain numbers. Enter each grade with its weight, and it works out the weighted average.
Enter each grade — the score you received, as a percentage or points.
Enter its weight — how much that grade counts. This can be a percentage like 30, or a point value like 150.
Add as many grades as you need using the Add Grade button.
Click Calculate — your weighted average appears instantly.
How Weighted Averages Work
To find a weighted average, multiply each grade by its weight, add all those products together, then divide by the sum of the weights. Unlike a simple average, this gives more influence to grades with higher weights.
For example, if you scored 90 on something worth a weight of 20 and 80 on something worth a weight of 30, the weighted average is (90 times 20 plus 80 times 30) divided by (20 plus 30), which is (1800 plus 2400) divided by 50, equal to 84. A simple average would have given 85, so the heavier weight on the lower score pulled the result down.
When to Use a Weighted Grade Calculator
Different assignment types — when quizzes, essays, and exams each carry different weight.
Points-based grading — when assignments are worth different point totals rather than percentages.
Combining grades — when you want an overall average across items of unequal importance.
Next step: If you are combining course grade categories like homework, midterm, and final, the Final Grade Calculator is set up for exactly that.
Frequently Asked Questions
An unweighted average treats every grade equally and simply adds them up and divides by how many there are. A weighted average gives some grades more influence based on their weight, so a final exam worth 40 percent affects your grade far more than a quiz worth 5 percent.
No. The calculator divides by the total of whatever weights you enter, so they can be percentages that total 100, or point values like 50, 100, and 200. As long as the weights reflect the relative importance of each grade, the weighted average will be correct.
Yes. If an assignment is worth 150 points and another is worth 50, enter those point values as the weights. The calculator treats them proportionally, so the 150-point item counts three times as much as the 50-point one.
The math is the same weighted average, but a final grade calculator is set up around course grade categories like homework and exams. This weighted grade calculator is more general and works for any set of grades with different weights, including points-based grading.
This calculator shows your letter grade automatically. On the standard US scale, 93 and above is an A, 90 to 92 is an A minus, 87 to 89 is a B plus, and so on in roughly three-point bands down to an F below 60.