Grade Calculator

Calculate your weighted average grade, letter grade, and GPA from assignment scores and weights.

schoolGrade Calculator

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Assignments

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infoTotal Weight: 0.0%

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Results

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Enter scores and weights to see your grade

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About Grade Calculator

The Grade Calculator computes your weighted average grade, letter grade, and GPA equivalent based on individual assignment scores and their weights. Enter each assignment with its score (0-100) and weight percentage, and the tool instantly calculates your overall performance using the standard US grading scale.

Whether you are a student tracking your progress through the semester, a teacher computing final grades, or a parent checking your child's academic standing, this calculator makes it easy to see exactly where you stand. All calculations run locally in your browser with no data sent to any server.

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How to Use

Add Your Assignments

Enter each assignment name, score (0-100), and its weight as a percentage of your total grade. Three rows are provided by default.

Verify Total Weight

Make sure your weights add up to 100%. The weight indicator at the bottom of the input panel shows your current total and warns you if it does not equal 100%.

Review Your Results

Your weighted average, letter grade, and GPA equivalent are calculated in real time as you enter scores and weights.

Analyze the Breakdown

Check the grade breakdown table to see each assignment's individual contribution to your final grade.

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Frequently Asked Questions

How are weighted grades calculated? expand_more

Each assignment's score is multiplied by its weight, and then the sum of those products is divided by the total weight. For example, if you scored 90 on an assignment worth 40% and 80 on one worth 60%, your weighted average is (90 x 40 + 80 x 60) / 100 = 84%.

What grading scale does this calculator use? expand_more

The calculator uses the standard US grading scale: A+ (97-100), A (93-96), A- (90-92), B+ (87-89), B (83-86), B- (80-82), C+ (77-79), C (73-76), C- (70-72), D+ (67-69), D (63-66), D- (60-62), and F (0-59).

How is GPA calculated from a percentage grade? expand_more

The GPA is mapped from the letter grade using the standard 4.0 scale. An A or A+ earns 4.0, A- earns 3.7, B+ earns 3.3, and so on down to F which earns 0.0. The GPA shown reflects the letter grade of your weighted average, not a separate calculation.

Do the weights need to add up to 100%? expand_more

Ideally yes. The calculator will still compute a weighted average even if they don't, but the result may not accurately reflect your actual course grade. The weight indicator warns you when the total is not 100%.

Can I use this for courses with unequal assignment categories? expand_more

Yes. Assign each category (homework, exams, participation, etc.) its own weight. For example, if homework is 30% of your grade and your homework average is 92, enter 92 as the score and 30 as the weight. Repeat for each category.